Specifications:

Power: DC 3V 2 x AAA batteries (not included)
Battery duration: about 6-12 months
LCD display Suitable the components as follow:
HAIER, SANYO NEC, CORONA, FUJITSU, SHARP, TOSHIBA, HITACHI, MITSUBISHI, MATIONAL, CHUMNLAN, GREE, SAMSUNG, CHIGO, HUIFENG, DAIKIN, CHANGFU, LG, MD, SHINCO, MCQUAY, YORK, CARRIER, TOBO, KELONG, JOHNSO, SHIRLPOOL, HUABAO, WEILI, RAYBO, SHENGFENG FEILU, CHANGHONG, LIANGYU, SOVA, XILENG, HUALING ONROWA, CHUANGHUA CONROWA GUANGDA etc. Dimensions: 3.46 in x 1.81 in x 0.98 in
Weight: 2.89 oz