Technical parameters: —–Measurement method: non-contact —–Effective distance: 3CM to 10CM —–Measuring range: human body model 32 ºC to 42.9 ºC object mode 0 ºC to 100 ºC —-Accuracy of measurement: the Body plus or minus 0.2 ºC Object plus or minus 1.0 ºC —–Resolution: 0.1 ºC —–Working conditions: 10 ~ 40 ºC —–Storage conditions: 25 ~ 55 ºC —–Power supply: 2AA dry battery —–Memory: double 32 groups (body temperature, body temperature) —–Display: three colors backlight —–Temperature: degrees Celsius, degrees