Features 1、Support to 3 Areas: Indoor outdoor thermometer is paired with 3 remote temperature sensor that transmit a steady signal up to 500 ft(150m) away. On the temperature gauge, you can simultaneously monitor the temperature and humidity of your living room, bedroom, garage and garden. 2、Face Icon Comfort Indicator: Humidity temperature gauge features face icons to indicate DRY/COMFORT/WET air conditions, quickly informs you how to adjust your humidifier or dehumidifier to achieve optimal comfort. 3、Compact Display with Large Digits: This digital thermometer indoor outdoor features a compact LCD display with large bold digits, allowing you to read the room thermometer indoor from any angle and distance. 4、Highly Accurate Sensors: This temperature humidity sensor features a high accuracy of ±1℃/1.8℉ and ±5%RH, making it ideal for measuring dynamic environments like greenhouses. 5、Multiple Placement Options: This humidistat has 2 placement options - tabletop stand / hanging mount, place the wall thermometer anywhere you wish such as living room, baby room, kitchen, greenhouse, guitar room, office or cellar. Specification Specifications: Material: ABS 1. Measuring Range Indoor Temperature Display Range: -10℃～+50℃ & 14℉～+122℉ Indoor Humidity Display Range: 20%RH～95%RH Outdoor Temperature Display Range: -40℃～+60℃ & -40℉～+140℉ Outdoor Humidity Display Range: 20%RH～95%RH 2.Resolution Temperature Display Resolution: 0.1℃ & 0.1℉ Humidity Display Resolution: 1%RH 3. Accuracy Temperature: 0℃～40℃/32℉～104℉: ±1℃/1.8℉; Other ranges: ±2℃/3.6℉ Humidity: 40%RH～80%RH: ±5%RH; other ranges: ±8%RH Power Supply: Thermometer: 3 * LR6 AAA batteries Sensor: 2 * LR6 AAA batteries Hygrometer Thermometer Size: 87 * 105 * 24.5mm / 3.42 * 4.13 * 0.96in Sensor Size: 50 * 105 * 26mm / 1.97 * 4.13 * 1.02in Package Weight: 385g / 13.58oz Package Size: 14.5 * 11.5 * 6.2cm / 5.71 * 4.52 * 2.44in Package List Package List: 1 * Thermometer 3 * Sensor 1 * User Manual (English)