1. Material: plastic 2. Function: measure temperature, memorize minimum / maximum temperature value, high temperature alarm, low temperature alarm 3. Dimensions: transmitter 6.6 × 5 × 2 cm, receiver 8 × 5.5 × 1.7 cm 4. Temperature range: 0 to 60 ° C indoor, -40 ° C to + 60 ° C outdoor. 5. Battery: 1.5V AAA battery (not included) 6. Wireless transmission function, can understand outdoor temperature through indoor receiver 7. Wireless range: no interference 100m
