Introduction

Zigbee Door/Window Sensor

User Manual V1.0

SenseGuard DW Gen2 is a Zigbee door/window sensor equipped with a tamper-protection feature. It detects the opening and closing status of doors and windows through the proximity and separation between the transmitter and the magnet. The magnet supports various mounting options, making it suitable for different door and window types. Powered by AAA batteries, the device allows easy replacement and long-term use. Its open/close and tamper status can be used in smart scenes to trigger other smart devices, enabling security functions such as lighting control, sound and light alarms, camera recording width="10"
, and app notifications.

Versatile Mounting

Tamper Alert

Smart Scene

App Notification

① Transmitter

② LED indicator (Red)

③ Magnet

④ Alignment mark for installation

⑤ Button

LED Indicator Status

Status

Description

Flash slowly for 180s

First-time power on/Press and hold button for 5s to enter the pairing mode

Keep on for 3s and then keep off

Pairing successful

Exit flashing slowly and keep off

Pairing failed/Pairing timeout

(after short pressing the button) Flash once quickly

Not added to the gateway

(after short pressing the button)
Flash twice quickly

Added to the gateway and online

Two short flashes followed by one long flash, repeated for 30s

Abnormal communication

Specification

Product name

SenseGuard DW Gen2


Product series

SenseGuard Series


Product type

Zigbee Door/Window Sensor


Model

SNZB-04PR2


MCU

TLSR8656F512ET32


Input

3V ⎓


Battery model

LR03 AAA*2


Zigbee

IEEE 802.15.4


Net weight

45.1g (with batteries)


Color

White


Product dimension

Transmitter(90*26*13.5mm)Magnet(31*14*6.5mm)


Casing material

PC


Applicable place

Indoor


Working temperature

-10℃ ~ 60℃


Working humidity

5-95%RH, non-condensing


FCC ID

2APN5-SNZB04PR2


Certification

CE/FCC/RoHS

Download the eWeLink App

Please download the “eWeLink” App from Google Play Store or Apple App Store.

Power On the Device

Open the transmitter enclosure with a screwdriver

Take out the battery insulation sheet to power on the device

If used for the first time, the device will enter pairing mode by default after being powered on, and the LED indicator will be in a slow flashing state.

  If the device is not paired within 3 minutes, it will exit pairing mode. To re-enter pairing mode, long press the device button for 5 seconds until the LED indicator is in a slow flashing state.

Add a Device

Zigbee Pairing

① Add SONOFF Zigbee gateway

Matched Gateways

Recommended SONOFF gateway models:

ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost

Other compatible SONOFF gateway models:

ZBDongle-P, ZBDongle-E, Dongle-M, Dongle-PMG24, Dongle-LMG21

② Add device

Enter “Scan”

Scan the QR code on the device

Select “Add Device”

(If the device exits pairing mode)

Long press the button for 5 seconds

Check the LED indicator’s flashing status (Slow flash)

Select a Zigbee gateway

Wait until the addition is done

Effective Communication Range Verification

Short press the device button at the desired location for installation. If the sensor is within the effective communication range of the hub or router on the same Zigbee network, the LED indicator will flash twice.

    Installation

    Apply the 3M adhesive to the designated area on the device

    The magnet can be installed either horizontally or vertically

    (For horizontal installation: When the door/window is closed, the installation gap between the transmitter and the magnet should be less than 30 mm. For vertical installation: The installation gap should be less than 15 mm.)

    Align the alignment mark on the transmitter and the magnet as closely as possible

     When installation space is limited, the magnet can be removed and installed separately.

    Open the magnet enclosure with a screwdriver

    Detach and install the magnet

    Replace the Batteries

    Remove the battery cover to replace the batteries.

     When replacing, use batteries of the same type.

    Factory Reset

    Long press the device button for five seconds. The device will be restored to factory settings.