Specification: Human body mode: Range: 32.0~42.9ºC (89.6~109.2ºF) Accuracy: ±0.3ºC (ambient temperature 18~25ºC) Surface mode: Range: 0.0~100.0ºC (32.0~212.0ºF) Accuracy: ±2.0ºC (ambient temperature 18~25ºC) Resolution: 0.1º Measurement method: Non-contact type Display: Liquid crystal display Response time: About 1 second Outrange prompt: Display "Hi" or "Lo" Spectrum response: 8~14μm Automatic shutdown: About 30s after no operation Working temperature and humidity: 10~40ºC/10~80%RH Storage temperature and humidity: -20~50ºC/<80%RH Power supply: 2 x 1.5V AAA