Features 1、Display indoor /u0026 outdoor temperature and humidity with ℃/℉ temperature unit for selection. 2、Adopt wireless technology，you can know outdoor temperature and humidity in indoor receiver. 3、Record max/min indoor and outdoor temperature and humidity. 4、Separate alarm setting function of upper and lower limits of indoor and outdoor temperature and humidity. 5、Can be placed on the table with a bracket for easy and convenient use. 6、With portable transmitter to induce outdoor temperature /u0026 humidity and transmit within 100m without obstacle. 7、Record max/min indoor and outdoor temperature and humidity.Separate alarm setting function of upper and lower limits of indoor and outdoor temperature and humidity. 8、Record max/min indoor and outdoor temperature and humidity. Can be placed on the table with a bracket for easy and convenient use. Specification This mini digital temperature humidity meter which can display indoor & outdoor temperature and humidity simultaneously, is great for home use, vegetable greenhouse, warehouse and farm. Large LCD display with backlight, you can easily read the value. Accurate measurement for measuring indoor & outdoor temperature and humidity. Features: Display indoor & outdoor temperature and humidity with ℃/℉ temperature unit for selection. Adopt wireless technology，you can know outdoor temperature and humidity in indoor receiver. Record max/min indoor and outdoor temperature and humidity. Separate alarm setting function of upper and lower limits of indoor and outdoor temperature and humidity. Can be placed on the table with a bracket for easy and convenient use. With portable transmitter to induce outdoor temperature & humidity and transmit within 100m without obstacle. Specifications: Material: ABS Product Color: White Backlight Color: White / Orange (Optional) Display: 70 * 42mm LCD Display Indoor Temperature Measuring Range: -9.9～60℃ / 14～140℉ Outdoor Temperature Range: -50～70℃ / -58～158℉ Temperature Accuracy: ±1℃ Indoor Temperature Humidity Detection Period: testing once 30 seconds Outdoor Temperature Humidity Detection Period: testing once 57 seconds Humidity Measuring Range: 20～95%RH Humidity Accuracy: ±5%RH Function: Indoor/Outdoor Temperature and Humidity, Max & Min Value Display, Upper and Lower Limit Alarm, ℃/℉ Switchable, Separated Transmitter Battery of Transmitter: 2 * 1.5V AA Batteries(Not Included) Temperature Humidity Meter Power Supply: 2 * 1.5V AAA Batteries(Not Included) Size of Transmitter: 130 * 40 * 22mm / 5.1 * 1.6 * 0.9in Temperature Humidity Meter Size: 90 * 95 * 39mm / 3.5 * 3.7 * 1.5in Transmitter Weight: 47g / 1.7z Temperature Humidity Meter Weight: 91g / 3.2oz Package Size: 13.5 * 10.5 * 4.5cm / 5.3 * 4.1 * 1.8in Package Weight: 173g / 6.1oz Package List: 1 * Temperature & Humidity Meter 1 * Transmitter 1 * User Manual Package List 1 * Temperature & Humidity Meter 1 * Transmitter 1 * User Manual