Original Shelly H&T smart sensor for monitoring indoor temperature and humidity over Wi‑Fi. It uses 802.11 b/g/n Wi‑Fi, has an embedded web interface, supports MQTT, and is powered by a single 3V CR123A battery.

These sensors work with Home Assistant, Alexa, Google Home, etc. Wi-Fi connection, no hubs required.

Compact battery-powered design with low standby consumption, suitable for smart home monitoring and automation setups. The device includes a reset button, LED indication, and measures in environments rated from -10 °C to 50 °C and 20% to 90% RH.

Manufacturer documentation: https://us.shelly.com/blogs/documentation/shelly-h-t

BATTERY NOT INCLUDED

Tech specs:

Model: Shelly H&T Original Version

Function: Temperature and humidity sensor.

Wireless: Wi‑Fi 802.11 b/g/n.

Frequency band: 2401–2495 MHz.

Max RF power: Less than 20 dBm.

Processor: ESP8266.

Flash memory: 2 MB.

Power supply: 3V DC, 1 x CR123A battery.

Battery life: Up to 18 months.

Power consumption: Static up to 70 uA, awake up to 250 mA.

Range: Up to 30 m / 100 ft indoors, up to 50 m / 160 ft outdoors.

Size: 35 x 46 mm.

Weight: 16 g without battery, 33 g with battery.

Housing: Plastic, available in black or white.

Features: Embedded web interface, MQTT support, 5 webhooks with 5 URLs per hook.

Controls: Reset button and LED indicator.

Scripting support: No.

Item specifics

Brand: Shelly.

Type: T

Smart home protocol: Wi‑Fi.

Power source: Battery.

Battery type: CR123A 3V.

Color: White or Black.

Connectivity: Wireless.

Suitable for: Indoor environmental monitoring.

Brand	Shelly
Sensor Function	Temperature & Humidity
Country of Origin	United States

Shelly H&T Wi‑Fi Temperature & Humidity Sensor ESP8266 White Home Assistant

Specifications

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