The Shelly BLU H&T ZB is a battery-powered water/dust-resilient temperature and humidity sensor with Bluetooth & Zigbee connectivity, allowing it to be used with a range of home automation systems, including Home Assistant*. Use it to simply monitor your environment, or as part of automations for HVAC systems. It reports real-time changes in temperature and humidity via Bluetooth or Zigbee (via a gateway*), allowing it to maintain a low power profile, running off a single CR2032 battery (included) for up to 3 years (your mileage may vary depending on usage, local conditions, and battery quality). With its IP54 rating, the Shelly BLU H&T ZB is built to withstand dust and water, making it reliable for both indoor and outdoor settings. Available in three colour options: Black, Mocha or Ivory. Select an option before adding to your cart. *Gateway required * To use this device with Bluetooth, a Shelly gateway is required. You may already have one running, as most Shelly Gen3/Gen4/Plus/Pro devices act as gateways, or grab the dedicated Shelly BLU USB Gateway. * To use this device with Zigbee, a compatible Zigbee gateway is required. Check out our Zigbee section for options. Lithium Battery Shipping: Due to courier restrictions, this product can only be shipped within the United Kingdom. With this item in your cart, your shipping options will be limited and may cost more than our usual rates. Why? Features * Bluetooth or Zigbee-operated * Detects and reports temperature and humidity * IP54 rated - water and dust-resilient * Long Battery life (up to 3 years) * Encryption (high level of security) * Wide compatibility with various smart home platforms * Easy control through the Shelly Smart Control app Specifications Size: 37x37x10 mm Weight: 13 g Mounting On a flat surface Shell material: Plastic Colour options: Black Mocha Ivory Ambient temperature: -20 °C to 60 °C Humidity: 0% to 100% RH Power supply: 1x 3 V battery (included) Battery type: CR2032 Battery life: 3 years Humidity sensor: Yes Temperature sensor: Yes Bluetooth Protocol: 5 (LE) RF band: 2402 - 2480 MHz Max. RF power: <8 dBm Range: Up to 10 m indoors and 30 m outdoors (Depends on local conditions) Zigbee Protocol: 802.15.4 RF band: 2405 to 2480 MHz Max. RF power: < 8 dBm Range: Up to 10 m indoors and 30 m outdoors (Depends on local conditions) Microcontroller unit CPU: EFR32MG27 Flash: 768 kB Firmware capabilities Schedules: No Webhooks (URL actions): No Scripting: No MQTT: No Encryption: Yes Other Supported gateways: Shelly Plus / Gen3 / Gen4 series Shelly Pro series / BLU USB Gateway Resources * Shelly Product Documentation * Printed User Guide (as found within the package) * Components and APIs * Declaration of Conformity * Device Identification * Device name: Shelly BLU H&T ZB * Device model: SBHT-203C * Device Bluetooth ID: 0x0011 * EAN: * Black: TBC * Mocha: 3800238072452 * Ivory: 3800238072414 Handy Shelly Resources * Shelly Cloud * Shelly App * Apple App Store * Google Play * Huawei AppGallery * Home Assistant Shelly Integration * Shelly Community Forum * Shelly Facebook Support Group * Shelly Knowledgebase * Shelly Device Finder (easy-to-use software to find Shelly devices in the local network) * Shelly Developer API Package Contents * 1x Shelly BLU H&T ZB (with CR2032 battery pre-installed) * 1x Double-sided foam tape * 1x Printed user guide https://elecena.pl/product/29974216/shelly-blu-h-t-zb 2026-03-17 https://elecena.pl/product/29974216/shelly-blu-h-t-zb 2026-03-20