Exo Terra Thermostat 600w with Day/Night Timer

The Exo Terra Thermostat 600W with Day/Night Timer gives reptile keepers precise, round-the-clock control over vivarium heating — with separate daytime and night-time temperature settings that replicate the natural thermal cycles your animals depend on. Whether you're keeping desert species that need a sharp overnight drop or tropical reptiles requiring a more modest dip, this thermostat manages both ends of the day automatically.

Day/Night Temperature Control

Daytime and night-time target temperatures are programmed independently, so the thermostat handles the transition between the two without any manual intervention. This prevents both overheating during warm summer periods and undercooling on cold winter nights — two of the most common causes of stress and illness in captive reptiles.

Dimming and Pulse Proportional Accuracy

Rather than simply switching heating devices on and off, the thermostat uses Dimming and Pulse Proportional control to hold temperatures precisely at the set point. This approach minimises temperature swings inside the terrarium, providing a far more stable environment than conventional on/off thermostats can achieve.

Display and Indicators

The LCD screen displays heating mode, day or night mode, and both the actual and target temperatures at a glance. A red LED and heating symbol show when the connected device is actively drawing power; once the set temperature is reached, the LED switches to blue and the heating symbol clears — so you always know exactly what the thermostat is doing.

Compatibility and Connections

• Compatible with heat mats, heat cables, ceramic heaters, and incandescent heat bulbs
• Controls heating devices up to 300W per socket
• Temperature range: 10°C to 60°C
• Waterproof remote temperature probe for accurate in-terrarium sensing
• Push button and dial input system reduces the risk of accidental setting changes

Setting Up Correctly

Place the temperature probe at the level and location where your animal spends most of its time, and always cross-reference with a separate thermometer to verify conditions inside the vivarium. Set temperatures according to the preferred optimum temperature range (POTR) for your specific species, and ensure the enclosure still provides a thermal gradient so your reptile can thermoregulate naturally.

For keepers who want automated day/night cycling without relying on separate timer units, the PT2454 brings that functionality and high-accuracy proportional control into a single, straightforward unit.