The TA22 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. The units display shows the current temperature, the alarm set point temperature, the alarm state, and the mode of operation of the unit (over temperature or under temperature alarm). The easy to read display features Current Temperate, Alarm Status, Over/ Under mode indicator, Alarm Set Point and Temperature Units ( degree F or degree C). Adjustable range from -40 degree F to +160 degree F (-40 degree C to +71 degree C). AC Adapter included. 80 db Audible alarm. Built-in terminals for remote alarm or telephone dialer connection. Alarm switch for No delay or 1 hour delay. Applications: food markets, convenience stores, supermarkets, restaurants, florists, greenhouses, laboratories, pharmaceutical storage facilities, refrigerated transport, cold storage facilities, computer. 1 Alarm channel. Precision thermistor with 6 cord. Thermistor type sensor. +2 degree F (+/- 1 degree C) Temperature accuracy (display). Screw type, 120 VAC, 5 amp maximum remote alarm connections. 120 VAC power. Hi-impact thermoplastic case. Surface, external holes provided mounting. Measures 3-3/32" length by 1-1/2" width by 4-57/64" height, 1 year warranty.