Specification:

Accuracy: (+/-)1°C
Frequency: 433MHz
Update Rate: 60 seconds
Transmitter Battery: 2 x 1.5V AAA Batteries(not included)
Receiver Battery: 2 x 1.5V AAA Batteries(not included)
Transmitter Size: 6.6 x 5 x 2cm / 2.6 x 1.97 x 0.8in
Receiver Size: 8 x 5.5 x 1.7cm / 3.15 * 2.16 x 0.67in
Transmitter Weight: 28g / 1.01oz
Receiver Weight: 38g / 1.37oz
Package Size: 17 x 7.7 x 3cm / 6.97 x 3 x 1.18in
Package Weight: 109g / 3.86oz

Package include:
1 x Receiver
1 x Transmitter
1 x User Manual

• Can display the indoor and outdoor temperature
• Wireless transmission function, you can know outdoor temperature with indoor receiver
• Indoor temperature range: 0~60°C
• outdoor temperature range: -40~60°C
• Wireless Transmission(in open air): 100 meters, 30 meters under most condition

Can display the indoor and outdoor temperatureCISNO