Exo Terra Thermostat 300 watt

The Exo Terra Thermostat 300W keeps your reptile's terrarium at a safe, steady temperature automatically. Reptiles are ectotherms and rely on external heat to regulate their body temperature, so a reliable heat source paired with a good thermostat is the foundation of a healthy habitat. This electronic ON/OFF thermostat switches your heater on and off to hold the exact temperature you set, eliminating the swings you get from an unregulated heat source.

Use it to control a heat mat, heat cable, or ceramic heater in your terrarium, and pair it with a thermometer to keep an eye on your temps. Browse all of our reptile and turtle supplies.

Key Features

• Precise control. An electronic Triac switch holds the setpoint far more accurately than basic thermostats, virtually eliminating temperature swings.
• Controls up to 300 watts. Run a heat mat, heat cable, or ceramic heat emitter, alone or combined, up to 300 W total.
• Wide temperature range. Set anywhere from 20°C to 35°C (68°F to 95°F) to match desert or tropical species.
• Waterproof remote sensor. Place the probe exactly where you want to measure, even in humid habitats.
• Red LED indicator. Shows at a glance when the heater is on.
• Recessed dial. The setpoint is protected from accidental bumps while you work in the tank.

How It Works

Plug your heating device into the thermostat, set your target temperature on the dial, and position the waterproof sensor in the spot you want to control. The thermostat powers the heater until that spot reaches your setpoint, then shuts it off. As the terrarium cools, it turns the heat back on, holding a stable temperature gradient day and night.

Specifications

Recommended Pairings

• Exo Terra Turtle Haven or another terrarium: the habitat this thermostat regulates.
• Squeaky's Digital Thermometer: monitor the actual temperature inside the tank.
• Browse all reptile and turtle supplies for heat mats, cables, and ceramic heaters.

Frequently Asked Questions

What can I plug into it?
Any single heating device or combination up to 300 watts total, such as heat mats, heat cables, or ceramic heat emitters. Because it is an ON/OFF thermostat, it is best for non-light heat sources, not for light-producing basking bulbs where dimming matters.

Where do I put the sensor?
Place the waterproof probe in the area you want to keep at the set temperature, usually near the basking zone or the warm end of the gradient.

Does it prevent overheating?
Yes. It cuts power to the heater once the set temperature is reached, which helps prevent overheating on warm days and undercooling on cold nights.

Can I use it in a humid or wet setup?
Yes. The remote sensor is waterproof, so it works in humid terrariums.