Specifications:
Model: TS-FT004-B
Indoor Temperature Measurement: 0 ~ 60 °C
Outdoor Temperature Measurement: -40 ~ 60 °C
Accuracy: +/- 1 °C
Wireless Transmission (Open Air): Up to 100 meters, 30 meters in most conditions
Frequency: 433MHz
Update Rate: Every 60 seconds
Transmitter Battery: 2 * 1.5V AAA batteries (not included)
Receiver Battery: 2 * 1.5V AAA batteries (not included)
Transmitter Size: 6.6 * 5 * 2 cm
Receiver Size: 8 * 5.5 * 1.7 cm
Transmitter Weight: 28 grams
Receiver Weight: 38 grams
Packing Size: 17 * 7.7 * 3 cm
Package Weight: 109 grams

Features:
1. Displays both indoor and outdoor temperatures.
2. Wireless transmission function lets you view outdoor temperature from the indoor receiver.
3. Indoor temperature range: 0 ~ 60 °C; Outdoor temperature range: -40 ~ 60 °C.
4. High accuracy with +/- 1 °C precision.
5. Convenient for home, office, or warehouse use.

Package Includes:
1x Receiver
1x Transmitter