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Zigbee Sensors

Home Assistant Zigbee2MQTT ZHA

Zigbee sensors are the foundation of smart home automations. They detect motion, temperature, open doors and much more - sending data to Home Assistant via your Zigbee network. With long battery life and lightning-fast response, they’re ideal for automations.


PIR sensors detect motion via infrared radiation. Perfect for turning lights on automatically.

ProductDetection timeRangeBatteryPrice ~USDScore
Aqara Motion P11-200 sec (adjustable)7m / 170°CR2450, 5 years$15⭐⭐⭐⭐⭐
Aqara Motion P2Adjustable7m / 170°CR2450, 5 years$19⭐⭐⭐⭐⭐
Sonoff SNZB-03P60 sec fixed6m / 110°CR2450, 3 years$12⭐⭐⭐⭐
IKEA VALLHORN1-5 min5m / 120°2x AAA$10⭐⭐⭐⭐
Sonoff SNZB-0360 sec fixed6m / 110°CR2450, 3 years$9⭐⭐⭐

The most versatile PIR sensor with adjustable detection time from 1 second to 200 seconds. Perfect for lighting automations where you want immediate response.

Pros:

  • ✅ Adjustable cooldown (1-200 sec) via Zigbee2MQTT
  • ✅ 170° detection angle
  • ✅ 5-year battery life
  • ✅ Includes 360° adjustable mount
  • ✅ Works perfectly with Home Assistant

Cons:

  • ❌ More expensive than alternatives
  • ❌ Marketed for Aqara Hub (but works fine with Z2M/ZHA)

Buy: Amazon, AliExpress

Good budget option with 60-second fixed cooldown. The new P-series has better design and longer battery life.

Buy: ITEAD, AliExpress - ~$12

Cheapest option from a known brand. Uses rechargeable AAA batteries (IKEA LADDA recommended). IP44 rating = can be used outdoors.

Buy: IKEA - $10


Contact sensors that detect whether doors and windows are open or closed.

ProductMax gapBatteryTamper alertPrice ~USDScore
Aqara Door/Window22mmCR1632, 2+ years$12⭐⭐⭐⭐⭐
Aqara Door Sensor T122mmCR1632, 2+ years$13⭐⭐⭐⭐⭐
Aqara Door Sensor P222mmCR2032, 2+ years$19⭐⭐⭐⭐⭐
Sonoff SNZB-04P25mm+CR2477, 5 years$10⭐⭐⭐⭐⭐
IKEA PARASOLLStandard1x AAA$12⭐⭐⭐
Sonoff SNZB-0415mmCR2032, 2 years$8⭐⭐⭐

🥇 Aqara Door/Window Sensor - The Classic

Section titled “🥇 Aqara Door/Window Sensor - The Classic”

The most tested and reliable contact sensor. Small form factor, long battery life and lightning-fast response.

Pros:

  • ✅ Very small and discreet
  • ✅ 2+ years battery life
  • ✅ Super fast response (under 0.5 sec)
  • ✅ Well-tested and stable

Buy: Amazon, AliExpress - ~$12

The new P-series has 5-year battery life and built-in tamper alert.

Pros:

  • ✅ 5-year battery (CR2477)
  • ✅ Tamper detection
  • ✅ Larger gap between sensor and magnet (25mm+)
  • ✅ Better build quality than previous generation

Buy: ITEAD, AliExpress - ~$10


Measures temperature and humidity - perfect for climate control and monitoring.

ProductTemp accuracyHumidity accuracyDisplayBatteryPrice ~USDScore
Sonoff SNZB-02P±0.2°C±2% RHCR2477, 4 years$11⭐⭐⭐⭐⭐
Aqara Temp/Hum T1±0.3°C±3% RHCR2032, 2 years$15⭐⭐⭐⭐⭐
Sonoff SNZB-02D±0.5°C±5% RH✅ LCDCR2450, 2 years$14⭐⭐⭐⭐
IKEA VINDSTYRKA±1°C±5% RH✅ E-inkUSB-C$45⭐⭐⭐⭐
Sonoff SNZB-02±0.5°C±5% RHCR2450, 2 years$8⭐⭐⭐

Swiss-made sensor with high precision and 4-year battery life.

Pros:

  • ✅ High accuracy (±0.2°C, ±2% RH)
  • ✅ 4-year battery
  • ✅ Updates every 5 seconds
  • ✅ Magnetic mounting
  • ✅ Nice round design

Buy: ITEAD, AliExpress - ~$11

Not just temp/humidity, but also PM2.5 and tVOC measurement. Fantastic for indoor climate monitoring.

Pros:

  • ✅ PM2.5 particle measurement
  • ✅ tVOC air quality
  • ✅ Beautiful E-ink display
  • ✅ USB-C power

Cons:

  • ❌ Requires power (not battery)
  • ❌ Fan can be heard
  • ❌ More expensive

Buy: IKEA - ~$45


Radar-based sensors that can detect stationary people - not just motion.

ProductTechnologyRangeZonesPowerPrice ~USDScore
Aqara FP300mmWave6m24 distancesBattery$50⭐⭐⭐⭐⭐
Aqara FP2mmWave8m30 zonesUSB-C$72⭐⭐⭐⭐⭐
Aqara FP1EmmWave5mAI learningUSB-C$43⭐⭐⭐⭐
Sonoff SNZB-06PmmWave 5.8GHz4mNoneUSB-C$22⭐⭐⭐⭐

The first battery-powered mmWave sensor with Zigbee. Perfect for bathrooms and offices.

Pros:

  • ✅ Battery-powered (can be placed anywhere)
  • ✅ Temp, humidity and light sensor included
  • ✅ 24 adjustable detection distances
  • ✅ Zigbee mode with full configuration in Z2M

Cons:

  • ❌ Requires Zigbee firmware flash via Aqara app
  • ❌ Thread/Matter mode has limited functionality

Buy: Amazon, AliExpress - ~$50

Cheapest mmWave sensor on the market. Simple but effective.

Pros:

  • ✅ Very cheap
  • ✅ Works fine for basic needs
  • ✅ 5.8GHz radar

Cons:

  • ❌ Requires USB power
  • ❌ No adjustable zones
  • ❌ Limited configuration

Buy: ITEAD, AliExpress - ~$22

The ultimate choice with 30 configurable zones and multi-person tracking.

Buy: Amazon - ~$72


Protect your home from water damage with early warning.

ProductAlarmBatteryExtraPrice ~USDScore
Aqara Water LeakVia HACR2032, 2 yearsTemp sensor$18⭐⭐⭐⭐⭐
Sonoff SNZB-05PVia HACR2477, 5 years-$12⭐⭐⭐⭐
IKEA BADRING60dB local2x AAABuilt-in siren$12⭐⭐⭐⭐

Small, reliable and has bonus temperature sensor.

Buy: Amazon, AliExpress - ~$18

Has built-in 60dB siren - alerts locally without HA.

Buy: IKEA - ~$12


Detects vibrations, tilt and drop. Perfect for:

  • Washing machine running/finished
  • Mailbox opened
  • Security (windows/doors)

Price: ~$18

ProductActionsBatteryPrice ~USD
Aqara Mini SwitchSingle, double, longCR2032$15
Sonoff SNZB-01PSingle, double, longCR2477$10
IKEA SOMRIG2 buttons, multiple actionsCR2032$12

Pros:

  • ✅ Best build quality
  • ✅ Most features
  • ✅ Very reliable
  • ✅ Good Home Assistant support

Cons:

  • ❌ Most expensive
  • ❌ Marketed for own hub
  • ❌ Some features only via Aqara app

Best for: Those who want the best regardless of price


  • 2x Aqara Door/Window Sensor ($24)
  • 2x Sonoff SNZB-03P Motion ($24)
  • 2x Sonoff SNZB-02P Temp/Hum ($22)
  • Total: ~$70
  • 4x Aqara Door Sensor ($48)
  • 4x Sonoff SNZB-03P Motion ($48)
  • 4x Sonoff SNZB-02P Temp ($44)
  • 2x Aqara Water Leak ($36)
  • 1x Sonoff SNZB-06P Presence ($22)
  • 1x Aqara Vibration ($18)
  • Total: ~$216


Ofte stillede spørgsmål

What's the difference between PIR and mmWave sensors?
PIR sensors detect motion via infrared radiation - they cannot see stationary people. mmWave/radar sensors can detect even small movements from breathing and are perfect for places where you sit still (office, bathroom, bedroom).
How long battery life can I expect?
Aqara and Sonoff P-series typically last 2-5 years depending on use. Sensors that trigger often (motion) use more battery than door sensors. IKEA uses AAA batteries which are easy to replace.
Do the sensors work without Aqara/IKEA hub?
Yes! All Zigbee sensors work with any Zigbee coordinator (Sonoff dongle, SLZB-06, SkyConnect etc.) via ZHA or Zigbee2MQTT in Home Assistant. You do NOT need the manufacturer's hub.
Which sensor for light automation?
For areas with walk-through traffic (hallway, stairs): Aqara Motion P1 with 1-5 sec cooldown. For living rooms/offices where you sit still: mmWave sensor (Aqara FP300 or Sonoff SNZB-06P).
Can I use battery sensors outdoors?
IKEA VALLHORN has IP44 rating and can be used outdoors under cover. Other sensors are for indoor use only. For true outdoor use, consider wired solutions.
Why does my motion sensor always show 'detected'?
PIR sensors have a cooldown period (typically 60 sec) where they cannot detect new motion. Aqara P1 lets you adjust this down to 1 second via Zigbee2MQTT.


Last updated: December 2025


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