Product comparison · 2 panic buttons

Dahua Technology ASF921 panic button Alarm vs Dahua Technology DHI-ARD812 panic button Wired Universal

Key differences

Purpose
- ASF921 panic button Alarm:Alarm
- DHI-ARD812 panic button Wired Universal:Universal
Product colour
- ASF921 panic button Alarm:Green
- DHI-ARD812 panic button Wired Universal:Grey, Red
Operating temperature (T-T)
- ASF921 panic button Alarm:-20 - 55 °C
- DHI-ARD812 panic button Wired Universal:-10 - 55 °C
Width
- ASF921 panic button Alarm:86 mm
- DHI-ARD812 panic button Wired Universal:49.5 mm
Depth
- ASF921 panic button Alarm:86 mm
- DHI-ARD812 panic button Wired Universal:32.5 mm
Height
- ASF921 panic button Alarm:50 mm
- DHI-ARD812 panic button Wired Universal:53.5 mm
Weight
- ASF921 panic button Alarm:200 g
- DHI-ARD812 panic button Wired Universal:34 g

Differences highlightedShow differences only

Comparison of ASF921, DHI-ARD812
14 specifications	A Dahua Technology ASF921 panic button Alarm Model ASF921 View product	B Dahua Technology DHI-ARD812 panic button Wired Universal Model DHI-ARD812 View product
Features3 differ
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired
PurposeDiffers	Alarm	Universal
Product colourDiffers	Green	Grey, Red
Housing materialDiffers	Plastic	Acrylonitrile butadiene styrene (ABS)
CertificationKnown for one	Unknown — not stated by the source	CE
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Poweridentical
Power sourceKnown for one	Unknown — not stated by the source	DC
Alarm currentKnown for one	Unknown — not stated by the source	300 mA
Operational conditions1 differ
Operating temperature (T-T)Differs	-20 - 55 °C	-10 - 55 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	0 - 95%
Weight & dimensions4 differ
WidthDiffers	86 mm	49.5 mm
DepthDiffers	86 mm	32.5 mm
HeightDiffers	50 mm	53.5 mm
WeightDiffers	200 g	34 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.