Zigbee motion sensor
Zigbee Motion Sensor – alternate view
Zigbee Motion Sensor – detail view
Zigbee Motion Sensor – close-up
Zigbee Motion Sensor – additional view
Zigbee Motion Sensor in Home Assistant

Zigbee PIR Motion Sensor – SmartThings & Home Assistant (SM301Z)

(57 customer reviews)

£14.99

Long-Lasting Power: Powered by 3 x AAA batteries, this motion sensor promises longevity. Forget the hassle of frequent battery replacements; once installed, it’s set to last for over three years, ensuring consistent performance.

Wide Detection Range: With a generous 160-degree movement trigger area, this sensor captures motion in a wide arc, ensuring no movement goes unnoticed. Whether it’s for security or automation, you can trust the Samotech Motion Sensor to catch every action.

simple installation: No more complicated setups. The Samotech Motion Sensor is designed for easy installation. With its user-friendly design, you can have it up and running in no time.

Home Assistant Compatibility: integrate the Samotech Motion Sensor with your Home Assistant setup. Its compatibility ensures smooth communication with your smart home system, allowing for advanced automations and real-time updates.

  • 160° wide-angle motion detection – covers a room from a single mount point
  • Native Zigbee 3.0 – pairs with Home Assistant (Z2M, ZHA), SmartThings, Hubitat and many Zigbee 3.0 hubs
  • 3 × AAA batteries with 3+ years of battery life
  • Reports motion and battery level as separate Zigbee entities
  • Simple wall or corner mounting – no wiring required

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SKU: SM301Z Categories: , Tags: , , , ,

Description

COMPATIBILITY:
Samotech SM310 Zigbee Gateway
Hubitat Elevation
Amazon Echo devices with a built-in Zigbee hub
Samsung SmartThings
Home Assistant

INSTALLATION STEPS

Tuya Zigbee Smart Gateway/SM310
1. Open Smart Life app and tap the Zigbee Gateway. Tap Add sub-device and select PIR Sensor. Follow on-screen instructions to continue
2. Ensure your mobile phone is connected to the WIFI network and the sensor is as close to the Zigbee Smart Gateway as possible
3. Press and hold the reset button for 5 seconds until the network – pairing indicator starts flashing red on the sensor. Follow the on-screen instructions on your phone to finalize the setup
4. The sensor should now be ready and operational

Samsung SmartThings
1. If the Zigbee Thing entity has already been added, delete it from the SmartThings app.
2. Register for the Beta Edge Drivers Channel.
3. Select the “Available Drivers” button.
4. Install the Zigbee Motion Sensor Mc driver.
5. Press and hold the reset button on your door sensor until the front indicator begins flashing red.
6. Use the “Scan for nearby devices” function in the SmartThings app to add the device.

 

Package contains:
SM301Z Zigbee Motion Sensor
3 x AAA batteries
3M adhesive & Manual

It’s worth noting that PIR motion sensors can be triggered by other sources of infrared radiation, such as sunlight or heaters, so it’s important to properly position and test the sensor to avoid false alarms.

Additional information

Brand

Samotech

Frequently Asked Questions

What does the Samotech SM301Z Zigbee Motion Sensor do?

The SM301Z is a battery-powered Zigbee PIR motion sensor that detects movement and sends events to your Zigbee hub. Use it for security alerts, automation triggers (lights on, scenes activate), or occupancy detection.

What’s the detection range and angle?

The SM301Z has a generous 160° motion-trigger area, capturing motion in a wide arc — wider than many comparable PIR sensors. Typical range is suitable for hallways, landings, and small to medium rooms.

What batteries does the SM301Z use, and how long do they last?

The SM301Z runs on 3 × AAA batteries (included). With low power consumption, the batteries are designed to last over three years under typical use, ensuring consistent long-term performance.

Which platforms is the SM301Z compatible with?

The SM301Z works with the Samotech SM310 Zigbee Gateway, Hubitat Elevation, Amazon Echo devices with built-in Zigbee, Samsung SmartThings, and Home Assistant.

How do I pair the SM301Z with the Samotech SM310 / Tuya Smart Gateway?

In the Smart Life app, tap the Zigbee Gateway, then "Add sub-device" → "PIR Sensor". Ensure your phone is on the WiFi network and the sensor is close to the gateway. Press and hold the reset button for 5 seconds until the network-pairing indicator flashes red. Follow the on-screen prompts to finish.

How do I pair the SM301Z with Samsung SmartThings?

If a Zigbee Thing entity already exists for the sensor in SmartThings, delete it first. Register for the Beta Edge Drivers Channel, click "Available Drivers", then install the "Zigbee Motion Sensor Mc" driver. Press and hold the reset button until the front indicator flashes red, then use "Scan for nearby devices" in the SmartThings app.

How do I avoid false motion triggers?

PIR motion sensors respond to changes in infrared radiation. Keep the sensor away from direct sunlight, heaters, radiators, and other heat sources to avoid false alarms. Test placement carefully after installation.

Alexa can’t find my SM301Z — what should I check?

Make sure you have an Alexa-compatible Echo device. After adding, check Alexa’s full device list — it can show "No new devices found" even after a successful pairing. If still missing, reset the sensor and re-add it.

My SM301Z stopped working in Alexa — how do I fix it?

After major Alexa app updates, sensors sometimes need re-pairing. Reset the sensor and re-add to Alexa. Critically, remove the old sensor entry from Alexa’s device list before re-adding, otherwise pairing may conflict with the stale entry.

My Lights Off Alexa routine has stopped working — how do I fix it?

Delete the old action. Add a Wait action for your required delay (e.g. 5 minutes), then a Time action of 0 minutes. The Lights Off routine will fire after the wait period as expected. Note: motion detection is pre-set to one trigger per 60 seconds.

VIDEO

Manual

SM301Z Zigbee PIR Manual

57 reviews for Zigbee PIR Motion Sensor – SmartThings & Home Assistant (SM301Z)

4.8
Based on 57 reviews
5 star
87
87%
4 star
8
8%
3 star
3
3%
2 star
0%
1 star
0%
1-10 of 57 reviews
  1. DIANE BURRELL
    Verified owner

    Connects easily and works very well with alexa routines.

    (0) (0)
  2. Lee K.
    Verified owner

    Great value for money, this sensor turns off our living room lights after no movement for 2 minutes helping save electric

    (0) (0)
  3. Sean
    Verified owner
    (0) (0)
  4. Verified Buyer
    Verified owner
    (0) (0)
  5. Adrian Li
    Verified owner
    (0) (0)
  6. James S.
    Verified owner

    Movement limited to about a meter

    (0) (0)
  7. Simon
    Verified owner

    Works ok

    (0) (0)
  8. Vincent
    Verified owner
    (0) (0)
  9. Ryan P.
    Verified owner
    (0) (0)
  10. Anonymous
    Verified owner
    (0) (0)
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