1. FunctionThe external temperature detector can detect the temperatureSet the start and stop temperatureCycle timing, start and stop time, timer switchIt is widely used in intelligent control, such as carbon heating, aquaculture,greenhouse, home life and other places.2. Technical parametersVoltage 230V AC 50HzMax Load: 16A(2) 3680W.u , (120V 15A for US type)Temperature Range: -40~120CAccuracy: +/- 1%Timing Accuracy: MAX 10 minutesTemperature range: -40~120COpen circuit (or less than -40C), the first row of the screen flashes display ''E1'', -40~-45C, display -40CShort circuit( or more than 120C ), the first row of the screen flashes displaty ''E2'', 121-129C display 120CLower than -10C, or higher than 100C, it will not display value behind the decimal pointRefrigeration mode, start temperature > Stop temperatureHeating mode, start temperature < stop temperature3. Mode buttonPress MODE. LCD display: temperature control modeTiming mode F01-F04