User's Manual
1
1 Introduction
1.1 Overview
Wireless keyfob is a miniature remote that connects to the hub and controls the alarm system in
your home. It works by sending wireless communication signals to the alarm system, which will
recognize the signal and then perform the function that is assigned to the area.
1.2 Technical Specifications
This section contains technical specifications of the keyfob. Please refer to the ones that correspond
with your model.
Table 1-1 Technical specifications
Type
Parameter
Description
Port
Indicator Light
1 × two-color status indicator (green: normal, red:
abnormal)
Button
4 (Home, Away, Disarm, and SOS)
Function
Remote Update
Cloud update
Low Battery Alarm
Yes
Wireless
Parameters
Carrier Frequency
DHI-ARA24-W2(868):
868.0 MHz–868.6 MHz
DHI-ARA24-W2:
433.1 MHz–434.6 MHz
Communication
Distance
DHI-ARA24-W2(868):
Up to 900 m (2,952.76
ft) in an open space
DHI-ARA24-W2:
Up to 500 m (1,640.42 ft) in
an open space
Communication
Mechanism
Two-way
Encryption Mode
AES128
Frequency Hopping
Yes
General
Power Supply
CR2032 battery
Battery Voltage
3 VDC
Min. Voltage
1.8 VDC
Battery Low
Threshold
2.6 VDC
Battery Restore
Threshold
2.65 VDC
Consumption
Quiescent current 3 uA
Max current 50 mA
PS Type
Type C