Product parameter : -The refrigerator uses the circle thermometer -Extand 1.2m outdoor temperature sensor wire length -Has 2 pieces sucking disc -The area magnet of the back, may adsorption is on refrigerator -Temperature range : -50 s/d 70 derajat Celcius -Resolution : 0.1 derajat Celcius -Accuracy : +/-1.0 derajat C within -10 derajat C s/d 30 derajat C, +/-2.0 otherwise ranger -Battery : LR1130