Digital thermohygrometer with remote sensor of 100m sensing range without obstacle, it's accurate and can be widely used indoors and outdoors. A perfect choice of temperature and humidity monitoring for baby room, bedroom, study room, office, greenhouse, wine cellar, warehouse, etc. Features: This thermohygrometer clearly displays indoor/ outdoor temperature, humidity and trend indication. or temperature display unit switchable. The main unit supports up to 3 remote sensors for stable transmission with the distance of maximum 100m (328ft) without obstacle. (Note: 1 remote sensor is included only.) Large digital screen with orange backlight, more intuitive, clear at a glance; the backlight will auto off to save power. Powered by 4 AAA batteries (not included) in total. Recording function of the maximum and minimum indoor/ outdoor temperature and humidity. Indication function of indoor and outdoor low voltage. Suitable for indoor and outdoor places such as bedroom, baby room, office, greenhouse, wine cellar, warehouse, etc. Easy installation, tabletop, magnetic adsorption, or wall hanging design. Note: 1. Do not place the product in a place with high temperature, humidity, much dust or corrosive gas to avoid damage to electronic components. 2. Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding. Specifications: Color: White Material: ABS Indoor Temperature Range: -10~60 (14~140) Outdoor Temperature Range: -50~70 (-58~158) Humidity Range: 20%-95%RH Temperature Unit: / Selectable Temperature Resolution: 0.1/ 0.1 Humidity Resolution: 1% Wireless Range: about 100m/ 328ft (open distance without obstacle) Power Supply: Main Unit: 2 * AAA Battery (Not included); Sensor: 2 * AAA Battery (Not included) Thermohygrometer Size: 95 * 73 * 25mm / 3.74 * 2.87 * 0.98in Sensor Size: 83 * 50 * 20mm / 3.27 * 1.97 * 0.79in Package Size: 11 * 9.2 * 6.3cm / 4.33 * 3.62 * 2.48in Package Weight: 170g / 6.00oz Package List: 1 * Thermohygrometer 1 * Remote Sensor 1 * Suction Cup 1 * User Manual (English)