Set your temperature threshold and the TA33 provides reliable protection for your temperature sensitive areas. The battery backup allows continuous monitoring even during power outages. The easy to read display shows current Temperature, Alarm Status, Over/ Under mode indicator and Alarm Set Point and Temperature. Adjustable range from -40 degree F to +160 degree F (-40 degree C to +71 degree C). Back Lit display . 90 db audible alarm. Adjustable alarm temperature ranges. Built-in terminals for remote alarm or telephone dialer connection. 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 and computer rooms. +/- 2 degree F (+/- 1 degree C) Temperature accuracy. 1 Alarm channels. Precision thermistor with 6' cable probe. Thermistor type sensor. 200' Maximum probe extension. -10 degree F to +130 degree F (-23 degree C to +54 degree C) Unit operating temperature range. Screw type, 120VAC, 10 amps remote alarm connections. 12 V Adapter 120 VAC with 6' cable included. 24 Hrs 9V Battery backup. Hi-impact thermoplastic case. Flat Surface, external holes provided mounting. Measures 4-51/64" length by 1-25/64" width by 3-3/16" height, 1 year warranty.