I like the look of this. Not available yet, but I wonder if it works with SmartThings.
SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor APP Real-time Monitoring Work with ZB Bridge-P/ ZB Dongle/ NS Panel - AliExpress
SONOFF SNZB-02 ZigBee Mini Indoor Temperature and Humidity Sensor for Checking The Room Climate, SONOFF ZigBee Bridge Required, Indoor Thermometer Hygrometer with Alert, Works with Alexa, Google Home : Patio, Lawn
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How to Add SONOFF Zigbee Human Presence Sensor to SmartThings and Home Assistant
SNZB-02 - SONOFF Official
Does anyone know if this Sonoff device works? (SONOFF SNZB-02 Zigbee Temperature and Humidity Sensor) - Connected Things - SmartThings Community
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ST Edge] Driver for SONOFF SNZB-02 - Community Created Device Types - SmartThings Community
SONOFF SNZB-01P/SNZB-02P Review - Zigbee wireless switch and temperature & humidity sensor tested with Home Assistant - CNX Software