• Designed for ESP01 – ESP8266 module, supporting both ESP-01S and ESP-01
• Built-in temperature and humidity sensor: DHT11
• Operating voltage: 3.7V – 12VDC (support single cell lithium battery)
• Measuring range:20-90%RH  and 0-50ºC
• Measuring accuracy:Temperature: +/- 2ºC, humidity +/- 5%RH

Packing list

x1unit ESP01 for measuring Humidity and Temperature