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Zigbee devices Temperature and humidity sensors

Heiman HS2HT

Smart temperature & humidity sensor. Works with Zigbee2MQTT with no vendor hub or cloud: it pairs with a Zigbee stick and shows up in Home Assistant.

Vendor
Heiman
Model
HS2HT
Type
Temperature and humidity sensors
Power
battery: an end device, does not extend the mesh
Firmware updates (OTA)
yes, through Zigbee2MQTT

Find it in shops: AliExpress

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What it exposes

FeaturePropertyValuesControl
Batterybattery% · 0…100read only
Identifyidentifyidentifysettable
Temperaturetemperature°Cread only
Humidityhumidity%read only
Alarm indicatoralarm_indicator—settable
Temperature offsettemperature_offset-15…15settable
Humidity offsethumidity_offset-15…15settable
Dew pointdew_point—read only
Vpdvpd—read only
Thithi—read only
Heat indexheat_index—read only
Reported packagesreported_packages0…60000read only
Rejoin countrejoin_count0…60000read only
Reboot countreboot_count0…60000read only

MQTT: state and commands

Zigbee2MQTT publishes the device state to zigbee2mqtt/my_device (my_device is the name you give the device). An example message:

{
  "battery": 87,
  "temperature": 21.6,
  "humidity": 46.2,
  "alarm_indicator": false,
  "temperature_offset": 0,
  "humidity_offset": 0,
  "dew_point": 0,
  "vpd": 0,
  "thi": 0,
  "heat_index": 0,
  "reported_packages": 30000,
  "rejoin_count": 30000,
  "reboot_count": 30000,
  "linkquality": 120
}

Send commands to zigbee2mqtt/my_device/set:

mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"alarm_indicator":true}'

Watch the topics live from the browser: MQTT client.

Home Assistant automation example

Zigbee2MQTT creates Home Assistant entities from the device name. If it is called my_device, an automation in automations.yaml can look like this:

- alias: "Room too warm"
  mode: single
  triggers:
    - trigger: numeric_state
      entity_id: sensor.my_device_temperature
      above: 26
      for: "00:10:00"
  actions:
    - action: notify.notify
      data:
        message: "Temperature above 26 °C"

Check the YAML: YAML checker.

How to pair it

  1. In Zigbee2MQTT click Permit join.
  2. Put the device in pairing mode: usually a long press of the reset button (5–10 s) until the LED blinks; bulbs: switch the power off and on 5–6 times.
  3. Keep the device close to the coordinator or a router while pairing.
  4. Give it a clear name: MQTT topics and Home Assistant entities are built from it.

Exact procedure and model notes: the device page in the Zigbee2MQTT docs. No coordinator yet: coordinator picker.

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