Exo Terra Thermostat 300w Dimming/Pulse Proportional

The Exo Terra PT2461 is a 300W dimming and pulse proportional thermostat built for reptile keepers who need precise, stable temperature control in their vivarium or terrarium. Compatible with heat mats, heat cables, ceramic heaters, and incandescent heat bulbs, it suits both desert and tropical setups where maintaining consistent temperatures year-round matters.

How It Controls Temperature

Unlike basic on/off thermostats, this unit operates in dimming or pulse proportional mode, modulating power output to keep temperatures locked at the set point rather than cycling through swings above and below it. This significantly improves accuracy and reduces thermal stress on your animals. An on/off mode is also available for simpler heating applications.

Temperature Range & Accuracy

The thermostat operates across a range of 18°C to 38°C, covering the requirements of the vast majority of commonly kept reptile species. The dimming and pulse proportional function keeps the vivarium temperature far closer to the chosen set point than conventional switching thermostats, which is particularly important for heat-sensitive or desert-dwelling species.

Key Features

• Controls heating devices up to 300W
• Three operating modes: Pulse Proportional, Dimming, and ON/OFF
• Temperature range: 18°C to 38°C
• Red LED indicates heating device is active; blue LED indicates set temperature has been reached and power is cut
• Recessed dial prevents accidental adjustment during handling
• Waterproof remote temperature probe — safe for humid vivariums and aquatic environments
• Power cord with grounded plug and receptacle, allowing use with a power outlet strip

Setting Up Correctly

Place the waterproof probe at the point in the terrarium where you want to monitor temperature — typically within the warm zone. Research the preferred optimum temperature range for your specific species before setting the dial, and always verify temperatures independently using a calibrated thermometer. Correct probe placement is essential for accurate thermoregulation gradients.

A reliable thermostat is one of the most important pieces of equipment in any reptile setup. The Exo Terra PT2461 gives keepers the precision and flexibility to maintain stable conditions without constant manual adjustment, letting your animals behave and thrive naturally.