Pre-Wired Climate Sensor

DHT21 Temperature and Humidity Sensor

The DHT21 Temperature and Humidity Sensor is the part that tracks climate inside GrowlyBox. Its vented black housing is open to airflow and reads cabinet temperature and relative humidity. The three-wire lead — yellow signal, red supply, black ground — arrives attached from the factory; you simply plug it into the control unit. Sold on its own to renew an existing sensor or to use in your own control build.

500 TL

• Reads temperature and relative humidity in one module
• Three-wire lead attached and ready
• Vented housing, open to airflow
• Plugs straight into the GrowlyBox control unit

FAQ

Does it need calibration?

No. The DHT21 is a factory-calibrated digital sensor; it reports readings digitally and requires no adjustment.

Can I use it in my own project?

Yes. Its single-wire digital output is standard and works with common microcontrollers. The lead colours are yellow signal, red supply, black ground.