Digital Thermometer Hygrometer Meter High-precision Temperature Humidity Monitor

--Celsius-Fahrenheit switchable: Press the C/F button to switch between Celsius and Fahrenheit. --Suitable for your house, office, factory, restaurant, warehouse baby room, etc.--Measurement range: Indoor temperature (0-60 °C); Outdoor temperature (-50-70 °C); Humidity (20%-99%). Temperature and Humidity Accuracy: ± 1 ° C/± 5% ;--2 mounting options: You can put it on the table or hang it on the wall. Features: 1. [3 Wireless Transmitting Sensors] These 3 remote sensors can be placed in three different places, either indoors or outdoors. Detects rapidly changing temperature and humidity. Signal distance is 100 meters/328 feet (open area). 2. [Large Backlit LCD Display] Large LCD display, easy and clear reading. You can turn on the backlight. This helps you read the data clearly, even in the dark. 3. The main unit needs 3 x AAA batteries, and each handset needs 2 x AAA batteries (not included).Description: Name: Thermometer Hygrometer Meter Material: ABS Use battery: 9pcs AAA batteries (battery not included) Size: main unit 12.5x12.5x2cm, sub unit 5x3.7x10.5cm Color: black, white Indoor temperature measurement range: 0-50 (℃) Outdoor temperature measurement range: -50-70 (℃) Temperature resolution: 0.1 (℃) Humidity measurement range: 20-99 (RH) Humidity Resolution: 1 (RH) Temperature measurement error: ±1 (℃) Humidity measurement error: ±5 (RH)Packing list: 1pc main unit+3pcs sub unit Note: Different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1~3mm error,thank you.