Features and functions

1. Working on 433.92Mhz

2. 200 meter transmission range in open area

3. One key (SOS)

4. Bracelet is optional

Technical Parameters

1. Working current: 23.5mA

2. Standby current: <=2uA

3. Communication code:EV1527/330K

4. Battery volume: 65mAH/12V

5. Battery standby time: 3 years