Lego-wrapped esp8266-based battery-powered WiFi-enabled MQTT temperature and humidity sensor : r/homeautomation
Temperature Humidity Sensor Detector 2 4GHz DIY Thermometer APP Notification Resettable Battery Operated Hygrometer - AliExpress
Wireless Battery Powered Temperature & Humidity Sensors to Server - Project Guidance - Arduino Forum
ZigBee Temperature & Humidity Sensor|2MQTT Round Tuya Accurate Sensor – MOES
Building Accurate Ambient Air Temperature Sensors — Technically Wizardry
Battery Powered ESP8266 WiFi Temperature and Humidity Logger
DIY temperature and humidity wireless data logger | /contrib/famzah
DIY Wireless Temp/Humid/Pressure sensors with Raspberry Pi Receiver, for monitoring stored 3D printer Filament – Dr. Scott M. Baker
DIY low power 433MHz TH sensor with 5 year battery life - Share your Projects! - Home Assistant Community
Temp. And Humidity Sensor With A CR2032 For Over 1 Year! - Hackster.io
Battery-powered IoT Moisture Sensor With Wi-Fi | ESP8266 | Maker Pro
Make Your Own Remote Temperature/Humidity Sensor - UDOO Projects
Tom Horton | DiY IoT | Building a Battery-operated ESP8266 Sensor Module
power - Remote temperature and humidity sensor with long battery life - Arduino Stack Exchange
Improving power consumption on my DIY temp & humidity sensor - Project Guidance - Arduino Forum
Tom Horton | DiY IoT | Building a Battery-operated ESP8266 Sensor Module
Battery Powered Arduino DS18B20 Temperature Sensor - PiHome
ABIDE Temperature Humidity Sensor WiFi Wireless DIY Gateway Detector Office Battery Operated Smartphone USB Detection Alarm Device - Walmart.com
Battery Powered ESP8266 IoT - Temperature Sensor - Home Circuits
Easy IOT - Low Power Wireless Temperature Sensors : 11 Steps - Instructables
DIY Temperature and Humidity Monitoring System with Arduino and DHT22 – QuartzComponents
Tom Horton | DiY IoT | Building a Battery-operated ESP8266 Sensor Module
