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Product comparison · 2 motion detectors

Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White vs Dahua Technology PFM861-B100 Wired Wall White

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  • 14specifications compared
  • 10differ
  • 4identical
  • 19known for one product only

Key differences

The Dahua Technology PFM861-B100 Wired Wall White has 6 dBmW more transmit power than the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White (16 dBmW vs 10 dBmW). The Dahua Technology PFM861-B100 Wired Wall White has 145 m more detection distance than the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White (160 m vs 15 m). The Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White has 10 - 90% more operating relative humidity (H-H) than the Dahua Technology PFM861-B100 Wired Wall White (10 - 90% vs 0 - 90%). Connectivity technology: Wireless on the Dahua Technology DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White, Wired on the Dahua Technology PFM861-B100 Wired Wall White. 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, 24050 - 24200 MHz on the Dahua Technology PFM861-B100 Wired Wall White.

  • Connectivity technology
    • Wireless
    • Wired
  • Transmit power
    • 10 dBmW
    • 16 dBmW
  • Detection distance
    • 15 m
    • 160 m
  • Operating frequency
    • 433.1 - 434.6 MHz
    • 24050 - 24200 MHz
  • Operating relative humidity (H-H)
    • 10 - 90%
    • 0 - 90%
  • Operating temperature (T-T)
    • -25 - 60 °C
    • -40 - 75 °C
  • Width
    • 106 mm
    • 194 mm
  • Depth
    • 94 mm
    • 158 mm

Side by side

Differences highlightedShow differences only
33 specifications
A

Dahua Technology

DHI-ARD2251E-W2 motion detector Passive infrared (PIR) sensor/Microwave sensor Wireless Wall White

Model DHI-ARD2251E-W2

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B

Dahua Technology

PFM861-B100 Wired Wall White

Model PFM861-B100

View product
Featuresidentical
PlacementKnown for oneIndoor, Outdoor
LED indicatorsKnown for oneAlarm
Security algorithmsKnown for one128-bit AES
Housing materialKnown for onePolycarbonate (PC)
LED colourKnown for oneGreen
Installation height (max)Known for one3 m
Installation height (min)Known for one1 m
Security4 differ
Sensor typeKnown for onePassive infrared (PIR) sensor/Microwave sensor
Connectivity technologyDiffersWirelessWired
Transmit powerDiffers10 dBmW16 dBmW
Alarm functionKnown for oneYes
Detection distanceDiffers15 m160 m
InterfaceKnown for oneRF
Operating frequencyDiffers433.1 - 434.6 MHz24050 - 24200 MHz
Transmission distanceKnown for one1200 m
Poweridentical
Power source typeKnown for oneBattery
Battery typeKnown for oneCR123A
Number of batteries supportedKnown for one4
Operational conditions2 differ
Operating relative humidity (H-H)Differs10 - 90%0 - 90%
Operating temperature (T-T)Differs-25 - 60 °C-40 - 75 °C
Storage temperature (T-T)Known for one-25 - 60 °C
Weight & dimensions4 differ
WidthDiffers106 mm194 mm
DepthDiffers94 mm158 mm
HeightDiffers211 mm49 mm
WeightDiffers651 g1.06 kg
Packaging dataidentical
Package widthKnown for one251 mm
Package depthKnown for one116 mm
Package heightKnown for one119 mm
Package weightKnown for one860 g

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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