eatures
Wireless Call Bell
Send call signals without wires
Compatible with all main units
Work with GDH100, GDH400, GDH500, GDH300
Long Life of Battery
One year 50 calls in a day
Benefits
Easy to operation
It is handheld style. Someone who needs to be serviced could press the button to get attendant
Maintenance Free
Enhanced designed for durability
Specifications
Physical Dimension
85x40x20 (mm)
Weight
60g (With battery)
Control
Single call button
Output Power
20mW
Frequency Band
315MHz
Modulations
ASK (AM)
Transmission Range
500m free field
Power Supply
23A 12-volt battery (inner)
Battery life
1 year (50 calls in a day)
Operating Rang
Temperature Rang:-10℃ to 50 ℃ for 1 hour
Humidity Range: 95% relative humidity for 4 hours