CM2302 / DHT22 TEMPERATURE & HUMIDITY SENSOR MODULE

CM2302 is a temperature and humidity composite sensor. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability. The sensor includes a capacitive wet sensor and a high-precision NTC temperature sensor connected to a high-performance 8-bit microcontroller, ensuring the product's excellent quality, fast response, anti-interference ability and cost efficiency. Each sensor is being calibrated in a highly accurate humidity calibration room. Compared to the DHT11, this sensor is more precise, more accurate and works in a bigger range of temperature/humidity, but its larger and more expensive.

Product basic info

Instruction manual languages: English

Primary colours: White

Depth unit: 3.8 cm

Height unit: 15.5 cm

Width unit: 7.8 cm

Weight unit: 25 g

Technical data

Specifications kits & modules:

• ultra-low power consumption
• long transmission distance
• standard digital single bus output
• excellent long-term stability
• high-precision NTC

• typical accuracy RH: +/- 2 % RH
• operating range RH: 0 to 99.9 % RH
• humidity response time: 5 sec
• typical accuracy temperature: +/- 0.5 C
• operating range temperature: -40 to 80 C
• interface: 1 wire
• supply voltage: 3.3 to 5.5 VDC
• supply current: max 1.5 mA

Operational properties

Coding skill level: none

Electronics skill level: none

Mechanics skill level: none

Soldering skill level: none

(EN)