Product comparison · 2 motion detectors

Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White vs Imou Motion Detector

17specifications compared
11differ
6identical
22known for one product only

Key differences

The Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White has 3 m more detection distance than the Imou Motion Detector (15 m vs 12 m). The Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White has 1,000 m more transmission distance than the Imou Motion Detector (1200 m vs 200 m). The Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White has 3 more batteries supported than the Imou Motion Detector (4 vs 1). Operating frequency: 433.1 - 434.6 MHz on the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White, 433 MHz on the Imou Motion Detector. Operating relative humidity (H-H): 10 - 90% on the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White, 0 - 95% on the Imou Motion Detector.

Detection distance
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:15 m
- Motion Detector:12 m
Operating frequency
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:433.1 - 434.6 MHz
- Motion Detector:433 MHz
Transmission distance
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:1200 m
- Motion Detector:200 m
Number of batteries supported
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:4
- Motion Detector:1
Operating relative humidity (H-H)
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:10 - 90%
- Motion Detector:0 - 95%
Operating temperature (T-T)
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:-25 - 60 °C
- Motion Detector:-10 - 55 °C
Width
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:106 mm
- Motion Detector:62 mm
Depth
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:94 mm
- Motion Detector:46 mm

Side by side

Differences highlightedShow differences only

Comparison of DHI-ARD2251E-W2, ARD1231-SW
39 specifications	A Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White Model DHI-ARD2251E-W2 View product	B Imou Motion Detector Model ARD1231-SW View product
Featuresidentical
Mounting type	Wall	Wall
PlacementKnown for one	Indoor, Outdoor	Unknown — not stated by the source
LED indicatorsKnown for one	Alarm	Unknown — not stated by the source
Product colour	White	White
Security algorithmsKnown for one	128-bit AES	Unknown — not stated by the source
Detection angle	90°	90°
Housing materialKnown for one	Polycarbonate (PC)	Unknown — not stated by the source
International Protection (IP) codeKnown for one	IP66	Unknown — not stated by the source
LED colourKnown for one	Green	Unknown — not stated by the source
Installation height (max)Known for one	Unknown — not stated by the source	2.5 m
Installation height (min)Known for one	Unknown — not stated by the source	2.2 m
Light sensitivityKnown for one	Unknown — not stated by the source	6500 lx
Security4 differ
Sensor typeDiffers	Passive infrared (PIR) sensor/Microwave sensor	Passive infrared (PIR) sensor
Connectivity technology	Wireless	Wireless
Transmit powerKnown for one	10 dBmW	Unknown — not stated by the source
Alarm functionKnown for one	Yes	Unknown — not stated by the source
Detection distanceDiffers	15 m	12 m
InterfaceKnown for one	RF	Unknown — not stated by the source
Operating frequencyDiffers	433.1 - 434.6 MHz	433 MHz
Transmission distanceDiffers	1200 m	200 m
Pet immunity (max)Known for one	Unknown — not stated by the source	18 kg
Power1 differ
Power source type	Battery	Battery
Battery type	CR123A	CR123A
Number of batteries supportedDiffers	4	1
Battery lifeKnown for one	Unknown — not stated by the source	3 year(s)
Operational conditions2 differ
Operating relative humidity (H-H)Differs	10 - 90%	0 - 95%
Operating temperature (T-T)Differs	-25 - 60 °C	-10 - 55 °C
Storage temperature (T-T)Known for one	-25 - 60 °C	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	106 mm	62 mm
DepthDiffers	94 mm	46 mm
HeightDiffers	211 mm	104 mm
WeightDiffers	651 g	100 g
Packaging dataidentical
Package widthKnown for one	251 mm	Unknown — not stated by the source
Package depthKnown for one	116 mm	Unknown — not stated by the source
Package heightKnown for one	119 mm	Unknown — not stated by the source
Package weightKnown for one	860 g	Unknown — not stated by the source
Batteryidentical
Battery technologyKnown for one	Unknown — not stated by the source	Alkaline
Packaging contentidentical
Batteries includedKnown for one	Unknown — not stated by the source	Yes
Screws includedKnown for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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