Introduction

Zigbee Human Presence Sensor

User Manual

SenseGuard Presence Core 24G is a human presence sensor based on microwave radar technology. It continuously emits microwave signals into the surrounding environment and detects changes in the reflected signals caused by human breathing, enabling accurate presence detection.

Operating at 24GHz, the device offers high precision and can detect even subtle movements. It supports masking of specific detection ranges or interference sources in designated areas, providing strong anti-interference performance. The built-in ambient light sensor enables more flexible and advanced smart scene conditions.

The device helps detect abnormal intrusion or presence and can promptly trigger linked devices such as cameras and alarms for precise security protection. It can also automatically control lights, fans, and other appliances based on human presence, delivering a more convenient and effortless smart living experience.

Presence Detection

Detection Area Setting

Interference Filtering

Light Sensing

  • The functional characteristics depend on the functionality of Zigbee gateway.
  • The equipment is only suitable for mounting at heights ≤ 2 m.
① Human presence sensor
② Magnetic base
③ Button
④ LED indicator
⑤ Power input interface (Type-C)
LED Indicator Status

Status

Description

Red flash slowly for 180 seconds

 First-time power on/press and hold button for 5s to enter pairing mode
Keep on for 3s and then keep off Paired successfully
Exit flashing slowly and keep off Distribution failure/timeout

(after short pressing the button)

Red flash twice quickly

Added to the gateway and online

Red flash twice quickly and once long, repeated for 30s

Abnormal Zigbee communication

Red flash 5 times

restored to factory settings

Blue keep on

Bluetooth connected status
Specification
Model

SNZB-06P24

MCU

TLSR8656

Input

5V ⎓ 0.5A

Interface type

Type-C

Colour

White

Product dimension

44.2×44.2x59mm

Net weight

34.5g

Casing materials

PC+ABS

Wireless connection

Zigbee 3.0 IEEE 802.15.4

Communication distance

Open area 100m

Applicable place

Indoor

Working temperature

-10°C ~ 60°C

Working humidity

0~90%RH, non-condensing

Working height

Less than 2000m

Certification

CE/FCC/RoHS

Installation
Effective Communication Range Verification

Short press the device button at the desired location for installation after adding the device. 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.

Detection Range

Radial detection distance: approximately 4m.

Detection angle: 120°

*Note: In narrow indoor environments, microwave reflections may be stronger, which can result in a wider effective detection angle.

Installation

① Step One: Choose a Suitable Installation Location

Common Interference Sources:
1. Moving objects: operating fans, air conditioners, washing machines, swaying curtains or plants, drainage pipes, etc.
2. Metal objects: large metal surfaces, mirrors with metallic coatings etc.

Before finalizing the installation location, adjust the position of the sensor or the interference sources if necessary.
The farther an interference source is from the sensor, the less impact it has on detection. Whenever possible, keep interference sources outside the detection area.
For interference sources that remain within the detection area, the device can reduce false detection through Detection Area Setting (②) and Detection Calibration (④).

 

*Note: Interference sources with non-fixed positions, such as pets and robot vacuums, cannot be excluded.

② Step Two: Block Interference Zones

On the device settings page, use Detection Area Setting feature to block detection zones that contain interference sources. Each zone can be enabled or disabled individually.

③ Step Three: Mount the Device

Install the device at a height of 1–2 meters.
For optimal performance, aim the sensor directly toward the human chest area.

Installation Methods:

① Desktop placement.

② Attach the base magnetically to a metal surface.

③ Attach the base using 3M adhesive.

④ Secure the base with screws.

*Note: Keep multiple sensors apart and avoid facing them toward each other.

*Note: After mounting the sensor, use the included cable clips to secure the power cable and prevent it from moving.

④ Step Four: Eliminate Interference in Unblocked Zones

This feature is mainly used to reduce interference from appliances that operate continuously in a fixed location, such as fans, air conditioners, or washing machines.

Leave the detection area and make sure the appliance you want to exclude remains powered on and operating.

Enable Detection Calibration feature on the device settings page. The device will automatically self-learn the movement pattern of the interference source and exclude it from detection.

Notes for installation:

① If the sensor position or the position of any interference source changes, please reconfigure Detection Area Setting and Detection Calibration as required.

② Some settings (Detection Area Setting and Detection Calibration) may not be available on certain third-party Zigbee gateways. For third-party users, please download the eWeLink App, scan the QR code on the device, and follow the in-app instructions to connect and configure.

③ Interference sources with non-fixed positions, such as pets or robot vacuum cleaners, cannot be blocked or excluded.

Factory Reset

Long press the device button for 10 seconds until the LED indicator quick flashing 5 times. The device will be restored to factory settings.

Add a Device
1.Download the eWeLink App & Add the SONOFF Zigbee gateway.

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

*The device supports other gateways using the Zigbee 3.0 protocol. Compatibility is subject to the actual product.

2.Add device

Power on the 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

LED Indicator flashes slowly for 180s

Select a Zigbee gateway

Wait until the device is added

Compatible Zigbee Gateways

 

Compatible Gateways

Recommended SONOFF Gateways

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

Other Compatible SONOFF Gateways

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

Compatible Third-party Gateways

Echo Plus 2nd, Echo 4th Gen, Echo Show 2nd，AeoTec Smart Home Hub V3

 

① On some gateways, the device may be displayed as a motion sensor.

② On some gateways, certain device settings (such as Detection Area Setting and Detection Calibration) may be unavailable. Please download the eWeLink App, scan the QR code on the device, and select Bluetooth connection to configure the device.