Shelly H&T - Black, Humidity and Temperature Sensor, Compact Size, Smart WiFi, Hygrometer Monitor, Home Automation iOS Android Application, Over 1
Shelly HT WiFi Operated Humidity And Temperature Sensor Has Built in Modules For Humidity And Temperature Low Consumption
Shelly support group (English Version), Shelly H&T: is indicated by manufacturer that “Long-lasting battery - life up to 16 months”, bu in my case only get less than one month..