Anself LCD Wireless Digital Indoor and Outdoor Thermometer

Outdoor Size: type1
This indoor/outdoor thermometer brings a lot of comfort to your daily life. Just place the receiver on the desk, and you can easily check the outside temperature. Specifications: Indoor temperature measurement: 0 ~ 60°C Outdoor temperature measurement: -40 ~ 60°C Accuracy: (+/-) 1°C Wireless transmission (outdoors): 100 meters, 30 meters under most conditions Frequency: 433MHz Refresh rate: 60 seconds Transmitter battery: 2 * 1.5V AAA batteries (not included) Receiver battery: 2 * 1.5V AAA batteries (not included) Transmitter dimensions: 6.6 * 5 * 2 cm / 2.6 * 1.97 * 0.8 in Receiver dimensions: 8 * 5.5 * 1.7 cm / 3.15 * 2.16 * 0.67 in Transmitter weight: 28g / 1.01 oz Receiver weight: 38g / 1.37 oz Package size: 17 * 7.7 * 3 cm / 6.97 * 3 * 1.18 in Package weight: 109g / 3.86 oz Package list: 1 * receiver 1 * transmitter 1 * user manual