The B2 HT Thermostat allows precise control of any non light emitting heat source up to 600w by using advanced microprocessor technology. The HT version controls 29 to 45 degrees celcius. The B2 is a pulse proportional thermostat that pulses the power supplied to the heat source, for an accurate change in temperature inside the vivarium. A pulse thermostat is not suitable for light emitting heat sources as the power delivery to the heat sources would cause the bulb to flash. A recessed temperature control adjuster is used to prevent accidental temperature changes if the unit were to be knocked, which would be easily done if the dial protruded from the casing. A yellow LED provides real time feedback as to how much power is being supplied to the heater. Long cable lengths ensure the unit can be fitted easily into most vivarium setups.