The external temperature detector can detect the temperature, set the opening and closing temperature with the functions of cycle timing, timing oepning and timing switch.Features:Widely used in intelligent temperature control of terrarium, aquarium, snake tank, aquaculture, greenhouse, seed germination, air conditioner, refrigerator, incubator, heat lamp/pad, carbon crystal heating, etc.Real time temperature range from -40℃ to 120℃, refrigeration and heating mode are available. Easy to use, all current settings will be saved if power off. Different timing modes for you: cycle or countdown timer. You can set the start/stop time in the unit of minute (range: 0-59 mins) and hour (range: 0-99 hrs).Large LCD display provides sharp digital readout and good visibility when in the sun or under low-light condition.Solid ABS construction and soft durable silicone buttons offer you long service life.Specifications:Material: ABSColor: WhitePlug Type: UK PlugVoltage: 100-250V AC, 50/60HzMax. Load: 16A(2) 3680W.μTemperature Range: -40℃ ~ 120℃ / -40℉ ~ 248℉Temperature Control Accuracy: ± 1%Timing Accuracy: max. 10 minutesItem Size: 12*5.8*3.2cm / 4.72*2.28*1.25inItem Weight: 163g / 5.74ozPackage Size: 15*6.5*5cm / 5.9*2.55*1.96inPackage Weight: 201g / 7.09ozPacking List:1 * Temperature Controller 1 * Probe1 * User Manual