Exo Terra Thermostat 600W with Day/Night Timer PT2454 | Reptile Vivarium

The ET Thermostat 600W with Day/Night Timer (PT2454) is a dimming and pulse proportional thermostat designed for reptile keepers who need accurate, round-the-clock temperature management in a vivarium or terrarium. With separate daytime and night-time temperature settings, it replicates the natural thermal cycles of desert and tropical environments — giving your animals the conditions they actually need to thermoregulate properly, not just a single static temperature.

Dual Temperature Programming

Both the daytime and night-time target temperatures are set independently, allowing you to programme realistic temperature drops overnight. This is particularly important for species where night-time cooling plays a role in digestion, activity patterns, and long-term health. The thermostat also guards against overheating during warm summer days and undercooling during cold winter nights.

Dimming and Pulse Proportional Control

Rather than simply switching your heating device on and off, the thermostat uses dimming and pulse proportional technology to maintain temperature at the set point with significantly greater accuracy than a conventional on/off thermostat. This virtually eliminates temperature swings inside the enclosure — particularly important for sensitive species or precise temperature gradients.

Display and Indicators

• Easy-to-read LCD screen displays heating mode, day or night mode, and both actual and set temperatures simultaneously
• Red LED and on-screen heating symbol illuminate when the heating device is active
• Once the set temperature is reached, the LED switches to blue and the heating symbol clears
• Push button and dial input system reduces the risk of accidental setting changes

Compatible Heating Devices and Specs

• Works with heat mats, heat cables, ceramic heaters, and incandescent heat bulbs
• Total load capacity: 600W; controls heating devices up to 300W per socket
• Temperature range: 10°C to 60°C
• Waterproof remote temperature probe included for accurate in-enclosure sensing

For any keeper running a vivarium that demands accurate thermal cycling — whether for a thermoregulating lizard, a snake with specific night-time requirements, or a humid tropical setup — the PT2454 gives you the control and confidence to maintain conditions correctly, without constant manual adjustment.