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Product comparison · 2 smoke detectors

D-Link DCH-Z310 smoke detector Photoelectrical reflection detector Wireless vs Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless

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  • 12specifications compared
  • 7differ
  • 5identical
  • 17known for one product only

Key differences

The D-Link DCH-Z310 smoke detector Photoelectrical reflection detector Wireless has 0.1 MHz more bandwidth than the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless (868.4 MHz vs 868.3 MHz). The Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless has 5 dB more alarm decibels than the D-Link DCH-Z310 smoke detector Photoelectrical reflection detector Wireless (90 dB vs 85 dB). The D-Link DCH-Z310 smoke detector Photoelectrical reflection detector Wireless has 2.2 cm more diameter than the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless (12 cm vs 9.8 cm). Battery life: 1 year(s) on the D-Link DCH-Z310 smoke detector Photoelectrical reflection detector Wireless, 3 year(s) on the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless. Operating temperature (T-T): 0 - 49 °C on the D-Link DCH-Z310 smoke detector Photoelectrical reflection detector Wireless, -10 - 55 °C on the Dahua Technology HY-SA21A-W2 Photoelectrical reflection detector Wireless.

  • Bandwidth
    • 868.4 MHz
    • 868.3 MHz
  • Alarm decibels
    • 85 dB
    • 90 dB
  • Battery life
    • 1 year(s)
    • 3 year(s)
  • Operating temperature (T-T)
    • 0 - 49 °C
    • -10 - 55 °C
  • Operating relative humidity (H-H)
    • 10 - 85%
    • 0 - 95%
  • Diameter
    • 12 cm
    • 9.8 cm
  • Weight
    • 130 g
    • 140 g

Side by side

Differences highlightedShow differences only
29 specifications
A

D-Link

DCH-Z310 smoke detector Photoelectrical reflection detector Wireless

Model DCH-Z310

View product
B

Dahua Technology

HY-SA21A-W2 Photoelectrical reflection detector Wireless

Model HY-SA21A-W2

View product
Features2 differ
Detector typePhotoelectrical reflection detectorPhotoelectrical reflection detector
Connectivity technologyWirelessWireless
BandwidthDiffers868.4 MHz868.3 MHz
Housing materialKnown for oneABS
Product colourWhiteWhite
Suitable for indoor useKnown for oneYes
Light alarmKnown for oneYes
LED indicatorsKnown for oneAlarm, Fault, Power
Alarm decibelsDiffers85 dB90 dB
Alarm muteKnown for oneYes
Maximum rangeKnown for one1000 m
Power1 differ
Power sourceBatteryBattery
Input voltageKnown for one3 V
Battery lifeDiffers1 year(s)3 year(s)
Battery low indicationYesYes
Battery typeKnown for oneCR123A
Compatible battery sizesKnown for oneCR123A
Battery voltageKnown for one3 V
Operational conditions2 differ
Operating temperature (T-T)Differs0 - 49 °C-10 - 55 °C
Operating relative humidity (H-H)Differs10 - 85%0 - 95%
Storage temperature (T-T)Known for one-20 - 70 °C
Storage relative humidity (H-H)Known for one5 - 95%
Weight & dimensions2 differ
DiameterDiffers12 cm9.8 cm
HeightKnown for one43.1 mm
WeightDiffers130 g140 g
DepthKnown for one53 mm
Batteryidentical
Battery technologyKnown for oneLithium
Sustainabilityidentical
Compliance certificatesKnown for oneCE
Certificatesidentical
CertificationKnown for oneFCC, CE, Z-Wave Plus, EN14604

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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