This module can be used as a temperature and humidity acquisition node for smart home or IOT projects. This module to ESP8266-01 / ESP-01S as the master, DHT11 for the temperature and humidity sensor. ESP8266 collection environment temperature and humidity upload to the server. Support 3.7v-12V DC power supply (3.7V lithium battery). Can be used as a temperature and humidity collection node for intelligent home or IOT projects.

Characteristic:

* Master: ESP-01 / ESP-01S (this module does not include ESP-01 / ESP-01S)

* Temperature and humidity sensor: DHT11

* Operating voltage: DC 3.7V-12V (support 3.7v lithium battery power supply)

* Measuring range: 20-90% RH 0-50 °

* Measurement accuracy: Temperature: ± 2 ° Humidity ± 5% RH