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User’s Manual
1
1 Introduction
1.1 Overview
Wireless Dual-tech Detector is a wireless motion detector designed for indoor use. It can detect a
human moving within 12 m of the detector.
1.2 Technical Specifications
This section contains technical specifications of the dual-tech detector. Please refer to the ones that
correspond with your model.
Table 1-1 Technical specification
Type Parameter Description
Port
Indicator
Light
1 × green alarm indicator
Button 1 × power switch
Function
Tamper
Alarm
Yes
Remote
Update
Cloud update
Signal
Strength
Detects signal strength.
Low Battery
Alarm
Yes
Wireless
Carrier
Frequency
DHI-ARD2231-W2(868):
868.0 MHz–868.6 MHz
DHI-ARD2231-W2:
433.1 MHz–434.6 MHz
Communicati
on Distance
DHI-ARD2231-W2(868):
Up to 1,600 m (5249.34 ft)
in an open space.
DHI-ARD2231-W2:
Up to 1200 m (3937.01 ft) in an
open space
Transmit
Power
DHI-ARD2231-W2(868):
Limit 25 mW
DHI-ARD2231-W2:
Limit 10 mW
Communicati
on
Mechanism
Two-way
Encryption
Mode
AES128
Frequency
Hopping
Yes
Temperature
Measuring
Range
-15 °C to +65 °C (+5 °F to +149 °F) (indoor)
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