Technical Specification 

Number of keys

4 keys

Working voltage

1.8

Frequency

433/868MHz

Transmit power

+10dBm

Transmit distance

80m(open area/no interference)

Standby current

≤10nA

Work current

20mA

Power

1 × CR2450

Temperature&Humidity

-10℃~55℃, <95%

Dimension

62*30*14mm

Weight

<20g