Healthgenie Digital Infrared Ear Thermometer for Baby, Child and Adult ââ¬â ET 22293 works on infrared technology and gives reading in just 1 second measurement. It is easy to use and gives quick and accurate results. It stored last 10 measurements to help you track the trend of temperature of your dear ones. It has auto switch off feature. The device switches off automatically in 1 minute when the device is not in use. The device has long lasting life, it can be used over 2000 times with 1pc of CR2032 button You can easily switch between ðC and ðF. The device gives beep sound when it is switched onoff, finishes a measurement of temp. and low voltage. It also gives low voltage warning on display. It can be used for people of all age group. Operating ambient conditions: Temperature: 16ðC~35ðC (60.8ðF~95.0ðF) Humidity: 85%RH) The display range:34.0ðC~44.0ðC (93.2ðF~111.2ðF) Accuracy: ñ0.2ðC(35.5ðC~42.0ðC) ñ0.4ðF(95.9ðC~107.6ðC) ñ0.3ðC( < 35.5ðC >42.0ðC) ñ0.5ðF( < 95.9ðF >107.6ðC) Storage and transport condition: Temperature:-25ðC~55ðC (-13ðF ~ 131ðF) Humidity: 85%RH Display resolution: 0.1ðC (0.1ðF) Power consumption: 30mW Battery: DC 3V (1PC Cr2032 button Dimension: 110mmx35mmx35mm Net weight: 36g Temperature: ðC or ðF