Low battery indicator
•
The indicator
○
5 flashes yellow once every 5 sec. to indicate
batteries are low and need changing.
Technical specification
•
Model: EchoAlert® Vibrating Pager
•
Power:: DC3V (AA Alkaline battery x2)
•
Standby current: <110uA
（
3V
）
•
Alarm current: <500mA
（
3V
）
•
RF frequency: 868MHz±50KHz
•
RF transmitting power: 13dBm
•
Transmission range: up to 100meters in open field
•
Product life: 50000H
•
Low battery warning: 2.6V
•
Temperature: work: 0°C-40°C storage: 0°C-35°C
（
dry environment
）
•
Humidity
：
15%-95%
（
No dew
）
