Digital temperature and humidity sensor, I2C master output, support simultaneous online access to multiple I2C electronic devices or modules. Humidity accuracy: ±2%RH (25℃). Resolution: Temperature 0.01℃, Humidity 0.024%RH.
eBay
When the humidity is lower than the set value, start the pump to start watering, and stop watering when the humidity reaches the set value. Press the +/- key to switch to "F1", press the "SET" key to display the stop humidity value, press the + / - key to set the humidity value.
eBay
Low Temperature Drift: Features minimal humidity deviation of under 0.5% RH per degree Celsius for precise readings. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Main Chip: High Sensitive Temperature Humidity Sensor. - Humidity Range: 0-100%RH. - 2x Temperature Humidity Sensor. 4 Pins Sequence Number: Pin1-VDD(Power 3.3V-5.5V); Pin2-SDA, Serial Data Interface, 2-Way Interface; Pin3-NC, NO Connect; Pin4-GND(Ground).
eBay
DHT11 Temperature And Relative Humidity Sensor Module For Arduino. This module integrates DHT11 sensor and other required components on a small PCB. Good for 20-80% humidity readings with 5% accuracy.
eBay
1PC AM2120 Capacitive Digital Temperature and Humidity Sensor. Sensor: Capacitive humidity sensor. Accuracy: Temperature:±0.5℃ Humidity: ±3%RH(25℃). Attenuation value: Temperature:<0.1℃/Year Humidity: <0.5%RH/Year.
eBay
eBay
1 x Humidity Sensor Switch Module. Small PCB size: 6cm x 1.9cm.
eBay