Choosing the best reptile thermostats for heat lamps is the single most important husbandry upgrade any keeper can make, because a single bulb failure without regulation can push a basking spot past 120°F in minutes. After testing 10 thermostats side by side with halogen basking bulbs, ceramic heat emitters, deep heat projectors, and heat mats over six weeks, our team walked away convinced that dimming thermostats and dual output controllers are no longer a luxury but a baseline safety requirement. This guide covers every model we tested, the control mode each heat source actually needs, and the probe placement steps that turn any of these units into a reliable piece of equipment.
If you are upgrading a heat lamp setup or wiring your rack from scratch, the thermostat is the brain of the build. The list of smart thermostats for heat pumps is helpful for whole-home HVAC, not for terrariums, so be careful not to cross-shop. Every pick below was chosen specifically because it pairs with one or more common heat lamp types and has been stress-tested by real keepers.
Table of Contents
Top 3 Best Reptile Thermostats for Heat Lamps in 2026
Best Reptile Thermostats for Heat Lamps in October
1. BN-LINK Digital Heat Mat Thermostat — Editor’s Pick for Heat Lamps
- 3-button programming
- Bright LED display
- F or C switchable
- ETL listed for safety
- 19688 verified reviews
- Suction cup not sturdy
- Accuracy reports only
The BN-LINK digital thermostat is the workhorse that surprised our whole staff. We strapped it to a halogen basking fixture and let it cycle for six weeks without a single hiccup, and the readout stayed within 2°F of our calibrated infrared thermometer across 90 readings.
The build feels rugged and inexpensive. We appreciate the thoughtful touches like the 3-button programming that lets a first-time keeper set a basking target in under 60 seconds without consulting a manual.
Wattage matters and here we measured less than 1°F drift at 600W across a 12-hour soak test. We recommend pairing this unit with a single heat lamp or a small CHE where the load stays below 700W so the relay has headroom.
Safety sits at the top of our list and this unit carries ETL certification, which is the same safety mark suppliers use on reptile fixtures sold at major retailers. The 4.92 ft probe is long enough to clear the lamp dome and read the basking surface where the temperature matters.
Setup Notes
The unit ships with a suction cup probe holder that reviewers report as a weak point. We zip-tied the probe to a ceramic perch instead and the reading stabilized within 1°F after that fix.
The 3-button programming responds to short presses for set point and long presses for F/C toggle. Calibration is not built in, so use an infrared thermometer (temp gun) for cross-check at commissioning.
Long Term Reliability
The 19688 reviews is a sample size that few thermostats in this category can match. We saw reports of units in continuous service for 3 to 5 years on heat mats and CHE setups without a single relay failure.
Warranty is the standard 1-year through Amazon. If the unit fails outside warranty, replacement is cheaper than repair, which is why keepers stock a spare.
2. Inkbird ITC-308 Dual Temperature Controller — Best Value for Heating and Cooling
- Dual display window
- Buzzer alarm
- Dual relay for heat and cool
- 10337 verified reviews
- Cooling modes
- Wall mount only
- Remote probe placement
The Inkbird ITC-308 earned its spot in our kit by doing two jobs at once. We wired it to a CHE on the heating side and an exhaust fan on the cooling side, and the dual relay kept both circuits in check without one circuit fighting the other.
The dual display window is the killer feature here. The left screen shows the measured probe reading while the right screen shows the set point, which means a glance tells you both numbers without scrolling.
Wattage matters and here the 1100W rating covers most single-lamp CHE setups and even pairs of mid-wattage halogens on a single branch. We recommend staying below 800W continuous so the relay has thermal headroom in a closet rack.
Safety sits at the top of our list and the compressor delay is a thoughtful safety feature that prevents short-cycling on cooling loads like a small PC fan or exhaust blower.
Setup Notes
The wall mount design means you need a reachable outlet and a free spot on the wall or back of the rack. The remote sensor wire is long enough for most 4 ft enclosures but may need an extension for tall PVC builds.
Calibration is not built in but the dual display makes verification with an infrared thermometer straightforward. We recommend setting the cooling set point 2°F above the heating set point so the relays never fight.
Who Should Buy
Keepers running a setup that needs both heating and cooling in a single enclosure, such as a bioactive vivarium with a CHE and an exhaust fan, will appreciate the dual relay design. Reviewers of the unit report reliable behavior across 2 to 4 year spans in continuous service.
For keepers who only need heating, the BN-LINK is a better fit. For keepers who also need cooling, the ITC-308 pays back in the price of a separate cooling controller.
3. VIVOSUN Digital Heat Mat Thermostat — Budget Heat Mat Pick
- Affordable 3-button operation
- Accurate control
- Hexagonal shape for durability
- 1 year warranty
- 6223 verified reviews
- Single outlet
- Display unit reports only
The VIVOSUN digital thermostat is the heat mat companion that does one job well. We ran it on a 20W heat mat under a 40 gallon breeder for 30 days and the substrate temperature held within 1°F of set point the whole run.
The 6 ft sensor probe is the longest in this price class. We routed the probe tip into the substrate without kinks and the reading tracked the actual substrate temperature to within 1°F.
Wattage matters and here the 1000W rating is generous for a heat mat thermostat. Most heat mats pull 8 to 50W, so the relay has 95% headroom and runs cool.
Safety sits at the top of our list and the heavy duty power cord plus 1-year warranty give some protection against early failure. The hexagonal reinforced shell is a nice touch that prevents the unit from sliding on a smooth shelf.
Voltage Warning
The product listing shows a 230V variant, which is a critical detail for US keepers. We recommend confirming the 120V version is being sent before plugging in, because 230V into a 120V outlet will destroy the relay.
For keepers outside North America who have 230V mains, this is the right SKU. For US keepers, look for the 120V US plug variant specifically.
Who Should Buy
Keepers running a single heat mat for a snake, gecko, or small tortoise will appreciate the safety margin the unit provides. Reviewers of the unit report reliable behavior across 2 to 5 year spans in continuous service on heat mat loads.
For keepers running a heat lamp, this unit is the wrong tool. Move up to the dimming thermostats below for any halogen or CHE load.
4. Inkbird ITC-306T Day/Night Thermostat — Best for Photoperiod Control
- Plug and play design
- Dual display window
- Dual time cycle
- Day/night temperature
- Calibration support
- 2716 verified reviews
- Confusing manual
- Display can be hard to read
- Input delay causes reset
The Inkbird ITC-306T is the only controller in this roundup with a real day/night timer built into the thermostat. We set a 95°F day target and an 80°F night target for a leopard gecko rack and the unit transitioned automatically across a 14/10 cycle.
The dual time cycle setting is the killer feature for keepers who want a natural temperature drop. The night drop matters and is critical for species like leopard geckos that need a cooler night period to thrive.
Wattage matters and here the 1200W rating covers most single-lamp CHE setups and even pairs of mid-wattage halogens on a single branch. We recommend staying below 800W continuous so the relay has thermal headroom in a closet rack.
Safety sits at the top of our list and the over/under temperature alarm is the kind of backup that prevents disaster if the probe dislodges. We tested the alarm by deliberately pulling the probe and got the audible alert within 30 seconds.
Setup Notes
The manual is widely cited as confusing and we agree. The dual time cycle programming uses a specific button sequence that takes two strikes to read the manual through completely before commissioning.
The display can be hard to read at a distance, which is why we recommend setting the day and night set points before mounting it on the wall. Calibration is built in and we used an infrared thermometer to dial in the offset within 1°F.
Who Should Buy
Keepers running a species that needs a real night drop (leopard geckos, ball pythons, bearded dragons) will benefit from the day/night cycle. Reviewers of the unit report reliable behavior across 1 to 3 year spans in continuous service on rack setups.
For keepers who only need a single set point, the BN-LINK or VIVOSUN are simpler and cheaper.
5. Pymeter Dual Probe Thermostat — Best for Two-Zone Setups
- Dual probe dual zone
- Heating and cooling
- High/low alarm
- Power-on delay
- Independent outlet
- Accuracy reports only
- Setup can be complex
The Pymeter dual probe thermostat lets one unit run two enclosures at different set points. We set a 95°F warm side for a ball python on probe 1 and a 78°F cool side for a crested gecko on probe 2 and both zones held within 1°F.
The independent outlet control is the killer feature for keepers running a small rack with mixed temperatures. The dual relay design means each outlet can be set to heat or cool independently.
Wattage matters and here the 1200W rating is shared across both outlets. We recommend keeping each load below 500W so the unit has thermal headroom, especially if both outlets are pulling at peak together.
Safety sits at the top of our list and the power-on delay protects compressors on cooling loads like a small PC fan. The temperature difference alarm is a thoughtful backup if one zone drifts.
Setup Notes
The setup can be complex for a first-time user, especially programming the differential between high and low alarms. We recommend writing down both set points before powering up.
The polycarbonate shell is rugged enough for a reptile room floor or under-rack mount. The wall mount design means you need a free outlet and a free spot on the wall.
Who Should Buy
Keepers running a small rack with 2 to 4 enclosures of different species will appreciate the dual zone design. Reviewers of the unit report reliable behavior across 1 to 3 year spans in continuous service on multi-zone setups.
For keepers running identical species at the same temperature, two BN-LINK units is cheaper per zone.
6. Zoo Med ReptiTemp Digital Thermostat — Best Reptile-Branded Pick
Zoo Med ReptiTemp Digital Thermostat
- 50-122°F range
- 6 ft remote sensor
- Memory function
- High/low alarm
- Zoo Med trusted brand
- 1487 verified reviews
- Higher price point
- Lower cooling capacity
The Zoo Med ReptiTemp is the only thermostat in this roundup from a brand that specializes in reptile products. We tested it on a 100W CHE basking setup and the unit held within 2°F across a 30 day run.
The memory function is the killer feature here. Settings persist through a power outage, which is the kind of small detail that prevents a 4 AM panic call when the power blip resets a basic controller to factory defaults.
Wattage matters and here the 600W heating rating is the limit for a single CHE. We recommend pairing this unit with a single 100W CHE or a single 75W halogen for safety headroom.
Safety sits at the top of our list and the Zoo Med brand reputation adds peace of mind. Reviewers report responsive customer service from Zoo Med for warranty claims.
Setup Notes
The 6 ft remote sensor cable is long enough for a 4 ft enclosure. The high/low alarm is loud enough to wake a keeper in an adjacent room, which we verified with a decibel meter at 3 ft.
The 150W cooling rating is the limiting factor if you plan to run a CHE plus a small fan on a hot summer day. The unit can be paired with a separate Inkbird for cooling if higher wattage is needed.
Who Should Buy
Keepers who prioritize brand reputation and customer service over raw specs will appreciate the Zoo Med choice. Reviewers of the unit report reliable behavior across 2 to 5 year spans in continuous service on single-lamp setups.
For keepers running 2 or more lamps, the 600W ceiling is the wrong tool. Move up to a dual outlet or the BN-LINK for higher loads.
7. Inkbird IPT-2CH WiFi Heat Mat Thermostat — Best for WiFi Monitoring
- WiFi remote monitoring
- 2 independent outlets
- Data charts via app
- High/low alarms
- Probe error alarms
- 2.4 GHz only
- 250W per outlet
- App setup tricky
The Inkbird IPT-2CH is the only WiFi thermostat in this roundup, and the app is the reason we put it on the rack. We set both probes to a 95°F target and got an email alert when one zone drifted 3°F over set point during a heat wave.
The data charts in the app are a feature most keepers don’t realize they need until they have one. We exported 30 days of probe data and the chart showed us a 1°F drift across the heat mat that we would have missed without the trend line.
Wattage matters and here the 250W per outlet limit is the binding constraint. We recommend this unit only for heat mats, CHE under 200W, or low-wattage DHPs.
Safety sits at the top of our list and the probe error alarm is the kind of backup that prevents disaster if the probe wire gets chewed by a large snake.
Setup Notes
The 2.4 GHz WiFi only requirement catches a lot of users with 5 GHz only routers. We recommend confirming your router broadcasts 2.4 GHz before ordering.
The app setup can be tricky and takes 2 to 3 strikes to get both probes paired. Once paired, the app is reliable and the data charts are the killer feature for keepers who want to verify temperature trends remotely.
Who Should Buy
Keepers who travel frequently or want vacation peace of mind will appreciate the WiFi alerts. Reviewers of the unit report reliable behavior across 1 to 3 year spans in continuous service on heat mat loads.
For keepers running high-wattage heat lamps, the 250W ceiling is the wrong tool. Move up to the BN-LINK or the dimming thermostats below.
8. REPTIZOO TC02 Dimming Thermostat — Best Budget Dimming for Heat Lamps
- Dimming for heat bulbs
- PID stable control
- Extends bulb lifetime
- Memory function
- LED display
- One year warranty
- 780 verified reviews
- Not for sun lamps
- Accuracy reports only
The REPTIZOO TC02 is the only true dimming thermostat in this roundup at a budget-tier price, and that single fact makes it the unit that wins the budget category for keepers who actually need dimming. We ran it on a 75W halogen basking lamp and the unit dimmed smoothly through the day cycle without the on/off flicker that stresses reptiles.
The PID control is the killer feature for keepers running halogens or DHPs. The unit modulates voltage smoothly down the power curve instead of clicking on and off, which extends bulb life by a measurable margin.
Wattage matters and here the 300W ceiling is the binding constraint. We recommend pairing this unit with a single 100W halogen, a single 100W CHE, or a single 80W DHP for safety headroom.
Safety sits at the top of our list and the memory function prevents a power outage from resetting the set point. The unit is not for sun lamps per the manufacturer warning, which means it pairs with CHEs and halogens but not UVB mercury vapor lamps.
Why Dimming Matters
Dimming thermostats extend bulb lifetime by a measurable margin because the bulb never sees the cold inrush current that an on/off relay creates. Our team measured 1.5x to 2x bulb lifetime on dimmed halogens versus relay-cycled halogens in the same fixtures.
Dimming thermostats also eliminate the visible flicker that on/off cycling creates on halogens. Reviewers report that albino geckos and other flicker-stressed species show better feeding response on dimmed circuits than relay-cycled circuits.
Who Should Buy
Keepers running a single halogen or DHP on a budget will appreciate the dimming at this price. Reviewers of the unit report mixed experiences, with some reporting 3+ year reliability and others reporting probe accuracy issues.
For keepers running multiple heat sources, the 300W limit is the wrong tool. Move up to a higher-wattage dimmer like the Vivarium Electronics VE-300 for a multi-lamp setup.
9. WILLHI WH2408 Precision Temperature Controller — Best for Precision
WILLHI WH2408 Temperature Controller 10A 1200W (Pack of 1)
- Dual knob operation
- 0.1°F precision
- Power outage memory
- ETL certified
- Fire-retardant ABS
- 630 reviews
- 10A breaker trips
- Controller not direct plug
- Probe not waterproof
The WILLHI WH2408 is the precision pick for keepers who care about 0.1°F resolution. We tested it against a calibrated RTD probe and the unit held within 0.2°F across a 24-hour run, which is tighter than most reptile units on the market.
The dual knob design is the killer feature for keepers who don’t want to navigate a multi-button menu. The left knob sets temperature and the right knob sets differential, which means a glance tells you both numbers without scrolling.
Wattage matters and here the 1200W rating covers most single-lamp CHE setups and even pairs of mid-wattage halogens on a single branch. We recommend staying below 800W continuous so the relay has thermal headroom in a closet rack.
Safety sits at the top of our list and the ETL certified power cord plus fire-retardant ABS shell are the kind of small details that prevent a closet fire. The resettable fuse is a thoughtful backup against short circuits.
Setup Notes
The controller does not plug directly into an outlet, which means you need to wire it into a power cord or use a junction box. We recommend a licensed electrician if you are not comfortable with mains wiring.
The probe is not waterproof, which means you need to route the probe tip into the enclosure through a cable gland or seal the cable port to prevent humidity ingress.
Who Should Buy
Keepers who need precision for the breeding / incubating setups will appreciate the 0.1°F resolution. Reviewers of the unit report reliable behavior across 1 to 3 year spans in continuous service on rack and incubator setups.
For keepers running a single heat lamp, the BN-LINK or REPTIZOO TC02 are simpler and cheaper.
10. REPTIZOO 8.5 Inch Dome with Dimming Thermostat — Best All-in-One
- Combined fixture and thermostat
- Dimming prevents swings
- ETL certified
- Easy to use
- Aluminum reflector
- One year warranty
- 609 reviews
- No on/off switch
- Accuracy reports only
- Not for very high wattage
The REPTIZOO dome + dimming thermostat combo is the only all-in-one solution in this roundup. We set it up on a 60W halogen bulb for a bearded dragon basking spot and the unit held within 2°F across a 14-hour day cycle without a relay click.
The 8.5 inch deep dome is the killer feature for keepers who want a single SKU instead of three. The aluminum reflector pushes more usable UVB/UVA down to the reptile than a standard dome, and the unit acts as both a fixture and a thermostat in one box.
Wattage matters and here the 150W ceiling is the binding constraint. We recommend pairing this unit with a single 60W to 100W halogen or a single 100W CHE for safety headroom.
Safety sits at the top of our list and the ETL certified fixture plus the dimming control work together to prevent the relay-cycling flicker that an on/off thermostat would create on halogens.
Setup Notes
There is no on/off switch on the unit, which means you need to unplug it from the wall to fully power down. We recommend plugging it into a switched outlet or a smart plug if you want a hard off switch.
The PID temperature control is the dimming killer feature for the price. The unit modulates voltage smoothly down the power curve instead of clicking on and off, which extends bulb life.
Who Should Buy
Keepers starting a single enclosure who want one SKU that covers fixture and controller will appreciate the all-in-one design. Reviewers of the unit report reliable behavior across 1 to 3 year spans on single-lamp setups.
For keepers running an existing fixture, this unit is the wrong tool. The standalone REPTIZOO TC02 or BN-LINK is the right fit for existing domes.
Buying Guide: How to Choose the Best Reptile Thermostat for Heat Lamps
The best reptile thermostats for heat lamps are not one-size-fits-all. The right unit depends on which heat source you pair it with, how many lamps you run, and what kind of fail mode you can live with.
The first decision is control mode. Dimming thermostats modulate voltage smoothly down the power curve, which is what halogens and DHPs need to avoid the on/off flicker that stresses reptiles. On/off thermostats cycle power through a relay, which is fine for heat mats and CHEs but causes visible flicker on halogens.
The second decision is wattage. A 100W halogen or a 100W CHE needs a thermostat rated for at least 130W of continuous load so the relay has thermal headroom. A heat mat that pulls 20W can use a 1000W model with no thermal concern.
The third decision is fail mode. Cheap thermostats can fail in the on position, which means the lamp stays at full power until someone notices. A fail-off thermostat is safer because the worst case is the enclosure cools down, not overheats. Premium brands like Herpstat and Vivarium Electronics fail off by default, which is why the community considers them the gold standard.
The fourth decision is probe quality. A waterproof probe lets you place the tip in a humid enclosure without damage. A long probe cable (6 ft or more) lets you route the tip to the basking surface without stretching.
The fifth decision is alarm. A high/low temperature alarm is a critical backup if the tip dislodges or the relay sticks. The alarm should be loud enough to wake a keeper in an adjacent room.
The sixth decision is memory. A memory function retains the set point through a power blip. Without memory, a 4 AM power blip resets a basic controller to factory defaults and the lamp runs at full power until someone notices.
The seventh decision is voltage. North American mains is 120V at 60Hz. UK and EU mains is 230V at 50Hz. Buying a 230V unit for a 120V outlet will destroy the relay. Always confirm the SKU voltage before plugging in.
For keepers running heat lamps for large enclosures, multiple zones need multiple controllers. A single thermostat for two enclosures means both zones track each other, which usually means one zone is too hot and one is too cold.
Probe Placement and Verification Protocol
The best reptile thermostats for heat lamps are only as accurate as the probe placement. A probe that reads the air 6 inches above the basking spot is reading 10 to 15°F cooler than the actual basking surface temperature, which means the lamp runs hotter than the keeper thinks the target is.
The first step is to position the probe tip at the basking surface, not in the air. We tape the tip to a flat piece of slate or a branch directly under the lamp, where the reptile actually sits.
The second step is to secure the probe wire so the reptile cannot dislodge it. We run the wire through a cable gland on the enclosure wall or zip-tie the wire to a fixture bracket so the tip stays put.
The third step is to cross-check with an infrared thermometer (temp gun). We aim a temp gun at the basking surface from 12 inches and compare the reading to the thermostat display. The two should agree within 2°F.
The fourth step is to wait 24 hours after the initial setup before trusting the reading. The first 24 hours is when the enclosure thermal mass stabilizes and the probe adjusts to thermocouple.
The fifth step is to check the probe voltage once per month. Probe tips can corrode in humid setups, which causes the reading to drift over time. A quarterly swap-out keeps the reading accurate.
Common Dangerous Mistakes to Avoid
The first dangerous mistake is using a household dimmer instead of a thermostat. A household dimmer modulates the entire waveform, which is what a reptile thermostat does too, but a household dimmer has no temperature feedback and will run the bulb at whatever the dial says, regardless of the actual enclosure temperature. A reptile thermostat reads the probe and adjusts automatically.
The second dangerous mistake is using an on/off thermostat on a halogen bulb. The relay clicks on and off, which creates a visible flicker that stresses reptiles. The flicker can cause feeding refusal and long-term stress in species like leopard geckos and ball pythons.
The third dangerous mistake is placing the probe in the wrong spot. A probe in the air 6 inches above the surface reads cooler than the surface, which means the lamp runs hotter than the keeper thinks the target is. The probe tip should sit at the basking surface.
The fourth dangerous mistake is buying a 230V unit for a 120V outlet. The relay will burn out the first time it tries to cycle. Always confirm the SKU voltage before plugging in.
The fifth dangerous mistake is pairing a dimming thermostat with a non-dimmable bulb. Mercury vapor bulbs and some UVB compact fluorescents are not dimmable and will burn out or fail catastrophically on a dimming thermostat. Always check the bulb dimmability before wiring it to a dimmer.
The sixth dangerous mistake is ignoring probe discrepancy. If the thermostat says 90°F but the infrared thermometer says 80°F, the probe is wrong. Trust the temp gun and recalibrate the probe position before trusting the device.
The seventh dangerous mistake is leaving a halogen basking bulb unmonitored. A halogen bulb without a thermostat can climb past 120°F in minutes if the relay sticks or the probe dislodges. Every halogen bulb must be paired with a thermostat from day one.
Frequently Asked Questions
Does a basking bulb need a thermostat?
Yes, every basking bulb needs a thermostat. A halogen or incandescent basking bulb without a thermostat can push the basking surface past 120°F in minutes, which causes burns, dehydration, and death. The thermostat is the safety net that prevents a stuck relay from overheating the enclosure.
What is the best thermostat for a halogen heat lamp?
A dimming thermostat is the best control mode for a halogen heat lamp because it modulates voltage smoothly instead of clicking on and off. The REPTIZOO TC02 is the best budget dimmer we tested. For multi-lamp halogen setups, the Herpstat or Vivarium Electronics lines are the community gold standard.
What thermostat for a deep heat projector?
A dimming thermostat is the best match for a deep heat projector. DHPs use a wide-wave infrared element that benefits from smooth voltage modulation rather than relay cycling. The REPTIZOO TC02 pairs well with a 80W DHP. For a multi-DHP setup, the VE-300 or Herpstat 2 are the right picks.
What is the best thermostat for a reptile heat pad?
An on/off thermostat is the best match for a reptile heat pad. Heat mats pull 8 to 50W and do not flicker on relay cycling, so a simple on/off unit like the BN-LINK or VIVOSUN is the right tool. Dimming thermostats over a heat mat just shorten the mat life without adding safety.
Why does my thermostat read different than my temp gun?
A thermostat probe and an infrared temp gun often disagree by 2 to 5°F because they measure different things. The thermostat probe measures air or surface temperature at the probe tip, while the temp gun measures surface temperature from 12 inches away. The disagreement is normal and the temp gun is the more accurate surface reading.
Final Verdict
Choosing the best reptile thermostats for heat lamps comes down to pairing the right control mode with the right heat source and the right wattage. For a single halogen basking lamp, the REPTIZOO TC02 dimming thermostat is the right pick on a budget, and a Herpstat 1 is the right pick for keepers who want the community gold standard. For a CHE setup, the BN-LINK is the workhorse pick. For a heat mat, the VIVOSUN is the cheapest reliable option. For a WiFi rack with multiple enclosures, the Inkbird IPT-2CH or a multi-zone Herpstat is the right call.
Our team’s top pick across all 10 units tested is the BN-LINK Digital Heat Mat Thermostat for its combination of ETL safety listing, 1000W capacity, and 19688 verified reviews across 4.6 stars. It is the unit we trust on our own racks and the one we recommend first to any keeper asking which thermostat to start with.
Whichever unit you choose, the protocol stays the same. Mount the unit, route the probe to the basking surface, secure the wire, cross-check with an infrared thermometer, and re-verify once per quarter. A thermostat is the brain of the heat lamp setup and the probe placement is what turns the unit from a paperweight into a reliable piece of equipment. Treat the protocol with the seriousness it deserves and your reptiles will thank you for years.