Feature: 1. 5s automatic standby, low consumption and energy saving. 2. ℃ and ℉ is switchable, one button to switch, simple and easily. 3. The LCD display has white backlight, you can see the temperature clearly. 4. The measuring-range of electronic doorbell infrared thermometer is 32℃-42℃/89.6℉-109.2℉. 5. Equipped with long service life, more than 100,000 times of normal use. 6. Equipped with data transferkey to control the transmission of temperature data between the thermometer and the computer. 7. Advanced voice broadcast function, it will automatic measuring your temperature and read out the temperature loudly. 8. Equipped with doorbell function. 9. Three modes adjustable, easy to adjust according to your demands. 10. Mode 1: the doorbell function is on at the same time as the temperature measurement function. 11. Mode 2: The doorbell function is on and the temperature measuring mode is off. 12. Mode 3: The doorbell function is off and the temperature measuring mode is on. Specification: This is a kind of quality electronic doorbell infrared thermometer, conbile doorbell with temperature measuring function. ℃ and ℉ is switchable, one button to switch, simple and easily. Advanced voice broadcast function, it will automatic measuring your temperature and read out the temperature loudly. 5s automatic standby, low consumption and energy saving. Three modes adjustable, easy to adjust according to your demands. You can have a try. Features: 5s automatic standby, low consumption and energy saving. ℃ and ℉ is switchable, one button to switch, simple and easily. The LCD display has white backlight, you can see the temperature clearly. The measuring-range of electronic doorbell infrared thermometer is 32℃-42℃/89.6℉-109.2℉. Equipped with long service life, more than 100,000 times of normal use. Equipped with data transferkey to control the transmission of temperature data between the thermometer and the computer. Advanced voice broadcast function, it will automatic measuring your temperature and read out the temperature loudly. Equipped with doorbell function. Three modes adjustable, easy to adjust according to your demands. Mode 1: the doorbell function is on at the same time as the temperature measurement function. Mode 2: The doorbell function is on and the temperature measuring mode is off. Mode 3: The doorbell function is off and the temperature measuring mode is on. Specifications: Name: Electronic Doorbell Infrared Thermometer Model: FTW03 Material: ABS Measuring-range: 32℃-42℃/89.6℉-109.2℉ Measuring time: about 2s Maximum allowable error: Within the range-of 35-42℃, ±0.2℃/±0.4℉ Besides 35-42℃: ±0.3℃/±0.5℉ Display: LCD display Current consumption: static OFF≤20μA, dynamic ON≤20mA Battery: 2 * AAA battery (excluded) Working conditions: Ambient tempearture: 0-100℃ Relative humidity: 15-85% Atmospheric pressure: 70-106kPa Item size: 100 * 62 * 20mm / 3.94 * 2.44 * 0.79in Item weight: 65g / 2.29ounce Package size: 127 * 88 * 30mm / 5.00 * 3.46 * 1.18in Package weight: 121g / 4.27ounce Packing List: 1 * Electronic Doorbell Infrared Thermometer 1 * Guideline Package List: 1 * Electronic Doorbell Infrared Thermometer 1 * Guideline