The HyQuest Solutions TB3H-LP Tipping Bucket Heater has been designed for use with the HyQuest Solutions Model TB3 Tipping Bucket Rain Gauge. The device is a thermostatically controlled heating element, that raises the temperature of the interior of the rain gauge and catch to avoid the freezing of the gauge in cold climates with subsequent loss of precipitation records. When the ambient temperature drops below a preset value (+ 4oC), the snow sensor in the funnel is activated. The heating elements remains ”OFF” until snow is detected in the catch area (funnel). The heating elements are turned on and off to keep the funnel temperature at the preset Set point temperature. (+ 10oC ) This will continue for a minimum preset time (18 mins) after there is no snow remaining in the catch. The heater will then be switched off and the unit will return to the “WAIT” mode until triggered by another snow event. The system will be de-activated when temperature drops below (-20oC) or above (+5oC) nominal.