Wireless SOS (Emergency button)：S-DS
Key Specifications
Wireless SOS (Emergency button)
Parameters: Dimension: 88mm*26mm*21mm 62mm*15mm*10mm
Working voltage: DC3.3V
Static current: 12μA
Transmitter current：≤ 35mA
Wireless Frequency：two way 433MHz
Wireless distance：≤150m（LOS:Line of sight）
Working temperature：－10℃～55℃
Relative humidity：≤ 95% （Non-condensation）
Main function:
1.When emergency matter happen, press button to give an alarm;
2.Wireless encryption bidirection communication.
3.Working voltage lower than 2.2V, Low voltage alarm.