Exo Terra 100w Electronic On/Off Thermostat

The Exo Terra Electronic On/Off Thermostat (PT2456) is a 100w on/off controller designed for reptile keepers who need reliable, accurate temperature management in their vivarium or terrarium. Compatible with heat mats, heat cables, and ceramic heaters, it suits both desert and tropical setups where consistent thermal conditions are essential.

Why Temperature Control Matters

Reptiles are ectotherms — they depend entirely on external heat sources to regulate their body temperature. Getting that temperature gradient right inside the terrarium is one of the most important factors in keeping reptiles successfully. Without proper control, overheating on hot summer days or undercooling on cold winter nights becomes a real risk to your animal's health.

Electronic Triac Switching

Rather than relying on a mechanical switch, this thermostat uses an electronic Triac switch to maintain the set temperature with significantly higher accuracy than conventional on/off thermostats. This virtually eliminates temperature swings inside the terrarium, keeping conditions stable and predictable around the chosen setpoint.

Practical Features

• Red LED indicator lights when the heating device is active and switches off once the target temperature is reached
• Recessed dial prevents accidental temperature adjustment during handling
• Waterproof remote sensor can be safely positioned in high-humidity terrariums and aquatic environments
• Simple setup — connect your heater, set the dial, place the sensor

Setting It Up Correctly

Before use, research the Preferred Optimum Temperature Range (POTR) for your specific species. Setting the thermostat to the correct temperature allows your reptiles to thermoregulate naturally by moving between warmer and cooler zones within the terrarium. A well-placed sensor is key to getting accurate readings at the point that matters most.

A straightforward, dependable thermostat from a brand reptile keepers know well — the Exo Terra PT2456 gives you precise on/off control without unnecessary complexity.