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User’s Manual
2
Type Parameter Description
Measuring
Precision
± 1 °C (± 1.8 °F)
Technical
Detection
Mode
PIR + Microwave
Sensor Dual-element low-noise PIR sensor, microwave sensor
Test Mode Yes
Detection
Range
12 m (39.37 ft) (90°) with installation height of 2.2 m (7.21 ft)
Detection
Speed
0.3 m/s–3 m/s (0.98 ft/s–9.84 ft/s)
Pet Immunity
Level
≤ 18 kg (39.68 lb), height < 50 cm (19.68 ft)
White Light
Resistance
Level
2000 lx
Two-way
Digital
Temperature
Compensatio
n
Yes, no attenuation of detection distance in high temperature
Sensitivity 3 levels adjustable
General
Power Supply CR123A*1
Consumption
Quiescent current 11 uA
Max. current 69 mA
Battery Life
3 years(if triggered 10 times a day with a battery efficiency of
70%)
Power
Consumption
DHI-ARD2231-W2(868):
Max. 615 mW
DHI-ARD2231-W2:
Max. 640 mW
Operating
Environment
–10 °C to +55 °C (+14 °F to +131 °F) (indoor)
–10 °C to +40 °C (+14 °F to +104 °F) (certified)
Operating
Humidity
10%–90% (RH)
Product
Dimensions
104.0 mm × 60.0 mm × 50.0 mm (4.09" × 2.36" × 1.97")
Packaging
Dimensions
95 mm × 59.5 mm × 30.5 mm (3.74" × 2.34" × 1.20")
Installation Wall mount
Net Weight 106 g
Gross Weight 184 g
Casing
Material
PC + ABS
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