Product comparison · 2 motion detectors

D-Link DCH-B122 motion detector Wireless White vs Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White

12specifications compared
8differ
4identical
23known for one product only

Key differences

The Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White has 1,160 m more transmission distance than the D-Link DCH-B122 motion detector Wireless White (1200 m vs 40 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 D-Link DCH-B122 motion detector Wireless White (4 vs 1). The Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White has 55 mm more width than the D-Link DCH-B122 motion detector Wireless White (106 mm vs 51 mm). Operating frequency: 2400 MHz on the D-Link DCH-B122 motion detector Wireless White, 433.1 - 434.6 MHz on the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White. Battery type: CR2450 on the D-Link DCH-B122 motion detector Wireless White, CR123A on the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White.

Operating frequency
- DCH-B122 motion detector Wireless White:2400 MHz
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:433.1 - 434.6 MHz
Transmission distance
- DCH-B122 motion detector Wireless White:40 m
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:1200 m
Battery type
- DCH-B122 motion detector Wireless White:CR2450
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:CR123A
Number of batteries supported
- DCH-B122 motion detector Wireless White:1
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:4
Width
- DCH-B122 motion detector Wireless White:51 mm
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:106 mm
Depth
- DCH-B122 motion detector Wireless White:51 mm
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:94 mm
Height
- DCH-B122 motion detector Wireless White:34.5 mm
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:211 mm
Weight
- DCH-B122 motion detector Wireless White:37.7 g
- DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White:651 g

Side by side

Differences highlightedShow differences only

Comparison of DCH-B122, DHI-ARD2251E-W2
35 specifications	A D-Link DCH-B122 motion detector Wireless White Model DCH-B122 View product	B Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White Model DHI-ARD2251E-W2 View product
Featuresidentical
Mounting typeKnown for one	Unknown — not stated by the source	Wall
PlacementKnown for one	Unknown — not stated by the source	Indoor, Outdoor
LED indicatorsKnown for one	Unknown — not stated by the source	Alarm
Product colour	White	White
Security algorithms	128-bit AES	128-bit AES
Detection angleKnown for one	Unknown — not stated by the source	90°
Housing materialKnown for one	Unknown — not stated by the source	Polycarbonate (PC)
International Protection (IP) codeKnown for one	Unknown — not stated by the source	IP66
LED colourKnown for one	Unknown — not stated by the source	Green
ZigBeeKnown for one	Yes	Unknown — not stated by the source
CertificationKnown for one	FCC, IC, CE, RCM, Zigbee 3.0	Unknown — not stated by the source
Security2 differ
Sensor typeKnown for one	Unknown — not stated by the source	Passive infrared (PIR) sensor/Microwave sensor
Connectivity technology	Wireless	Wireless
Transmit powerKnown for one	Unknown — not stated by the source	10 dBmW
Alarm functionKnown for one	Unknown — not stated by the source	Yes
Detection distanceKnown for one	Unknown — not stated by the source	15 m
InterfaceKnown for one	Unknown — not stated by the source	RF
Operating frequencyDiffers	2400 MHz	433.1 - 434.6 MHz
Transmission distanceDiffers	40 m	1200 m
Power2 differ
Power source type	Battery	Battery
Battery typeDiffers	CR2450	CR123A
Number of batteries supportedDiffers	1	4
Battery lifeKnown for one	2 year(s)	Unknown — not stated by the source
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Operating temperature (T-T)Known for one	Unknown — not stated by the source	-25 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-25 - 60 °C
Weight & dimensions4 differ
WidthDiffers	51 mm	106 mm
DepthDiffers	51 mm	94 mm
HeightDiffers	34.5 mm	211 mm
WeightDiffers	37.7 g	651 g
Packaging dataidentical
Package widthKnown for one	Unknown — not stated by the source	251 mm
Package depthKnown for one	Unknown — not stated by the source	116 mm
Package heightKnown for one	Unknown — not stated by the source	119 mm
Package weightKnown for one	Unknown — not stated by the source	860 g
Batteryidentical
Battery technologyKnown for one	Lithium	Unknown — not stated by the source

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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