Product details:

Supco Temperature Alarm 110V/120V Farenheit The TA-2 Temperature Alarm is a single point or threshold type of temperature alarm. This type of temperature alarm monitors the temperature at the sensor probe tip and when this temperature passes above (or below) the set point, the unit will execute a preset operation. In the case of the TA-2, this will be to sound an audible alarm, close a set of relay contacts and flash a front panel LED. A user selectable one hour delay will prevent false alarms in freezers caused by defrost cycles and frequent door openings.