◎ LCD display.
◎ 2-way communication.
◎ Communicate with the alarm panel by double wireless way.
◎ Working voltage: 6V( 4 AAA batteries、50 uA) or 12VDC（100mA）.
◎ Keypad number: at most 8
◎ Wireless communicating distance: 40m (in the open air)
◎ Emitting power: 12dB
◎ Emitting frequency: 433MHz/868MHz
Model No.:PB-503R
Working Voltage:3.7V / 1600mA
Shutdown Current:≤10uA
Working Current:≤90mA
Charging Current：≤500mA
Wireless Emitting Distance: not less than 100M(an open field)
User Password:1234（support 4 user password）
Admin Password:987699
Battery Standby Time: 6-8 Hours
Power Saving Mode: Auto shutdown the system within 30 minutes
if without any operations。
Wake Up Key: Short Press enter into doorbell model. Long Press enter into wake up
mode and LCD will light up.
Keypad Low Voltage: When the keypad voltage is lower than 3.5V, Low voltage icon will
display in the LCD screen only and disable the RFID functions.
