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User’s Manual
1
1 Introduction
1.1 Overview
Wireless Water Leak Detector can be used to detect water leaks in indoor pipes, baths, sinks, washing
machines, and dishwashers. It triggers alarms and provides timely notifications to keep you up to
date on ongoing events. It is easy to install and does not require wiring. It also provides
communication security, supporting the use of wireless communication with encryption technology.
1.2 Technical Specifications
This section contains technical specifications of the water leak detector. Please refer to the ones that
correspond with your model.
Table 1-1 Technical specification
Type Parameter Description
Function
Indicator Light 1 for multiple statuses (pairing, power status, and alarm)
Button Power button
Remote Update Cloud update
Low Battery
Alarm
Yes
Tamper No
Technical
Sensor Water leak detector
Sensitivity Adjustable
Operating
Current
28.5 uA
Alarm Current 5.8 mA
Wireless
Carrier
Frequency
DHI-ARD912-W2 (868),
DHI-ARD912-W2 (868D):
868.0 MHz–868.6 MHz
DHI-ARD912-W2, DHI-ARD912-
W2 (D):
433.1 MHz–434.6 MHz
Communication
Distance
DHI-ARD912-W2 (868),
DHI-ARD912-W2 (868D):
Up to 1,200 m (3937.01
ft) in an open space
DHI-ARD912-W2 (868), DHI-
ARD912-W2 (868D):
Up to 800 m (2624.67 ft) in an
open space
Transmit Power
DHI-ARD912-W2 (868),
DHI-ARD912-W2 (868D):
Limit 25 mW
DHI-ARD912-W2 (868), DHI-
ARD912-W2 (868D):
Limit 15.8 mW
Communication
Mechanism
Two-way
Encryption
Mode
AES128
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