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Dahua

Dahua Wireless Door Detector(Black)

Name: Dahua Wireless Door Detector(Black)
Brand: Dahua
SKU: ARD333-W2(915S)-B

Stock Code: ARD333-W2(915S)-B

Detects when the door opens and reports it to the alarm panel at once.

A wireless magnetic door detector for non-metal doors. The reed sensor tracks the movement between the leaf and the magnet and sends the status to the panel over an encrypted wireless link.

40 mmMovement Distance

915.0 MHz–928.0 MHzCarrier Frequency

AES128Encryption Mode

CR123ABattery Type

–10 °C to +55 °COperating Temperature

PC + ABSCasing Material

Key features

Magnetic reed sensorThe movement distance is 40 mm, and it detects position changes on non-metal doors.

Tamper and battery warningIt reports case tampering and a low battery separately.

Temperature measurementIt tracks the ambient temperature between –15 °C and +65 °C indoors.

External alarm inputA 1-channel digital input connects an extra detector to the system through the same housing.

Encrypted wireless linkAES128 encrypts the two-way communication, and frequency hopping leaves an interfered band.

Cloud updateIt updates the firmware remotely and recovers itself from a failed update.

Technical Specification
Port
Alarm Input	1-channel external digital input
Function
Indicator Light	1 × green alarm indicator
Button	1 × power button
Remote Update	Cloud update
Low Battery Detection	Yes
Tamper	Yes
Measuring Range (Temperature)	–15 °C to +65 °C (+5 °F to +149 °F) (indoor)
Technical
Sensor	Reed switch
Movement Distance	< 40 mm (1.57")
Anti-EMI/RFI Interference	Yes
Test Mode	Yes
Scenario	Non-metal doors
Operating Current	471.3 mA (Max), 32.7 µA (Standby) (Battery 3 V)
Wireless
Carrier Frequency	915.0 MHz–928.0 MHz
Transmitter Power (EIRP)	Limit 1 W
Communication Mechanism	Two-way
Communication Distance	Up to 1,400 m (4,593.18 ft) in an open space
Encryption Mode	AES128
Frequency Hopping	Yes
General
Power Supply	CR123A battery
Power Supply Type	Type C
Battery Model	CR123A
Battery Life	A single CR123 battery can last for 4.1 years if alarms are triggered 2 times a day, with a battery efficiency of 80%.
Low Battery Threshold	2.2 V
Battery Restore Threshold	2.6 V
Power Consumption	0.314 W (Max), 0.098 mW (Standby)
Operating Temperature	–10 °C to +55 °C (+14 °F to +131 °F) (indoor)
Operating Humidity	10%–90% (RH)
Product Dimensions	101.0 mm × 21.0 mm × 22.2 mm (3.98" × 0.83" × 0.87") (L × W × H)
Net Weight	48.7 g (0.11 lb)
Gross Weight	88 g (0.19 lb)
Installation	Wall mount
Casing Material	PC + ABS
Certifications	CE
Packaging Dimensions	110.0 mm × 75.0 mm × 33.0 mm (3.61" × 2.46" × 1.08") (L × W × H)

Datasheet

ARD333-W2(915S)-B

19/24/2025

Kullanım Kılavuzu

Teknik Çizim

ARD333-W2(915S)-B

17/28/2025

ARD333-W2(915S)-B

12/11/2026

ARD333-W2(915S)-B

17/28/2025

Dahua Wireless Door Detector(Black)

Stock Code: ARD333-W2(915S)-B

Detects when the door opens and reports it to the alarm panel at once.

A wireless magnetic door detector for non-metal doors. The reed sensor tracks the movement between the leaf and the magnet and sends the status to the panel over an encrypted wireless link.

40 mmMovement Distance

915.0 MHz–928.0 MHzCarrier Frequency

AES128Encryption Mode

CR123ABattery Type

–10 °C to +55 °COperating Temperature

PC + ABSCasing Material

Key features

Magnetic reed sensorThe movement distance is 40 mm, and it detects position changes on non-metal doors.

Tamper and battery warningIt reports case tampering and a low battery separately.

Temperature measurementIt tracks the ambient temperature between –15 °C and +65 °C indoors.

External alarm inputA 1-channel digital input connects an extra detector to the system through the same housing.

Encrypted wireless linkAES128 encrypts the two-way communication, and frequency hopping leaves an interfered band.

Cloud updateIt updates the firmware remotely and recovers itself from a failed update.

Technical Specification
Port
Alarm Input	1-channel external digital input
Function
Indicator Light	1 × green alarm indicator
Button	1 × power button
Remote Update	Cloud update
Low Battery Detection	Yes
Tamper	Yes
Measuring Range (Temperature)	–15 °C to +65 °C (+5 °F to +149 °F) (indoor)
Technical
Sensor	Reed switch
Movement Distance	< 40 mm (1.57")
Anti-EMI/RFI Interference	Yes
Test Mode	Yes
Scenario	Non-metal doors
Operating Current	471.3 mA (Max), 32.7 µA (Standby) (Battery 3 V)
Wireless
Carrier Frequency	915.0 MHz–928.0 MHz
Transmitter Power (EIRP)	Limit 1 W
Communication Mechanism	Two-way
Communication Distance	Up to 1,400 m (4,593.18 ft) in an open space
Encryption Mode	AES128
Frequency Hopping	Yes
General
Power Supply	CR123A battery
Power Supply Type	Type C
Battery Model	CR123A
Battery Life	A single CR123 battery can last for 4.1 years if alarms are triggered 2 times a day, with a battery efficiency of 80%.
Low Battery Threshold	2.2 V
Battery Restore Threshold	2.6 V
Power Consumption	0.314 W (Max), 0.098 mW (Standby)
Operating Temperature	–10 °C to +55 °C (+14 °F to +131 °F) (indoor)
Operating Humidity	10%–90% (RH)
Product Dimensions	101.0 mm × 21.0 mm × 22.2 mm (3.98" × 0.83" × 0.87") (L × W × H)
Net Weight	48.7 g (0.11 lb)
Gross Weight	88 g (0.19 lb)
Installation	Wall mount
Casing Material	PC + ABS
Certifications	CE
Packaging Dimensions	110.0 mm × 75.0 mm × 33.0 mm (3.61" × 2.46" × 1.08") (L × W × H)