Feature:1. Electronic devices use changes in electrical capacitance or resistance to measure humidity differences.2. Large-character LCD display, clear to read.3. Low power consumption and high stability \u0026 accuracy.4. Display temperature, humidity and time simultaneously.5. / unit selectable, 12 hour / 24 hour displaying system selectable.6. Memory of MAX \u0026 MIN measuring value.7. Clock \u0026 Calendar function, desk-top placing or wall hanging.8. Adopts ABS new engineering plastics, good toughness and rigidity, safer and wear-resistant.9. Electronic devices use changes in electrical capacitance or resistance to measure humidity differences. Large-character LCD display, clear to read.10. Low power consumption and high stability \u0026 accuracy. Display temperature, humidity and time simultaneously.11. Display indoor temperature, outdoor temperature\u0026 indoor humidity. Freezing point alarm at -1~412. / unit selectable, 12 hour / 24 hour displaying system selectable.Clock \u0026 Calendar function, 8 minutes snooze function, desk-top placing or wall hanging.13. Adopts ABS new engineering plastics, good toughness and rigidity, safer and wear-resistant.Memory of MAX \u0026 MIN measuring value.14. KNOW YOUR HOME BETTER -- Especially when air conditioner is on, you must need it to monnitor the humidity in your room. Always Keep yourself and families stay away from dry air.15. ENGINEERING PLASTIC -- Our Hygrometers are made of ABS, the new engineering plastics, which is more High quality, safer and more wear-resistant.Specification:SMART SENSOR Temperature Humidity Meter is an instrument used for measuring the moisture content in the atmosphere. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity.Features:Electronic devices use changes in electrical capacitance or resistance to measure humidity differences. Large-character LCD display, clear to read.Low power consumption and high stability & accuracy.Display temperature, humidity and time simultaneously.Display indoor temperature, outdoor temperature& indoor humidity.Freezing point alarm at -1~4/unit selectable, 12 hour / 24 hour displaying system selectable.Memory of MAX & MIN measuring value.Clock & Calendar function, 8 minutes snooze function, desk-top placing or wall hanging.Adopts ABS new engineering plastics, good toughness and rigidity, safer and wear-resistant.Specifications:Material: ABSColor: YellowTemperature measuring range(indoor): -10~+50(14~+122)Temperature measuring range(outdoor): -50~+70(-58~+158)Temperature measuring accuracy: ±2Temperature resolution: 0.1(0.2)Humidity measuring range: 20%RH-99%RHHumidity measuring accuracy: ±5%RHHumidity resolution: 1%RHFreezing point alarm: -1~4Calendar: 1999/1/1-2048/12/31Battery: 1 X AAA 1.5V (not included)Item size: 10.8*10*2.2cm/4.25*3.93*0.86inItem weight: 126gPackage size: 21.5*14.5*4.5cm/8.46*5.70*1.77inPackage weight: 157gNote:Item color may show sight aberration due to different shooting light and monitor display.Battery is NOT included.Packing list:1* Humidity Temperature MeterPackage List:1* Humidity Temperature Meter