CM2302 Digital Temperature & Humidity Sensor

  • 28059: CM2302 Temperature & Humidity Sensor - front view
  • 28059: CM2302 Temperature & Humidity Sensor - angled view
  • 28059: CM2302 Temperature & Humidity Sensor - back view
$9.99
Product ID: 28059
In Stock: 39
1-9$9.99
10-19$9.50
20+$9.00
Downloads

Overview

Do you need convenient environmental input for your microcontroller projects? The CM02302 supplies both temperature and relative humidity data when queried.  This sensor is factory pre-calibrated, so you won't need to calibrate it before using it in your project.

Features

  • For use at -40 to +80 Celsius (-40 to +176 Fahrenheit)
  • Outputs °C x 10 and RH% x10 as integer values
  • Native single-bus communication is supported by Propeller C libraries and BlocklyProp blocks
  • Compatible with Arduino DHT22 libraries
  • Compact 25.3 x 7.8 mm case includes a mounting hole
  • Breadboard-friendly 0.1" standard pin spacing

Application ideas

  • DIY thermostat
  • Dehydrator system
  • Garden greenhouse monitor

Details

Key Specifications

  • Supply voltage : DC 3.3 to 5.5V
  • Temperature range (T) : -40 to +80 Celsius (-40 to +176 Fahrenheit)
  • Relative humidity range (RH): 0 to 99.9% relative humidity
  • Typ. Temperature accuracy: ±0.5 Celsius
  • Typ. Humidity accuracy: ±2% RH at 25 Celsius
  • Long term drift (T) : <0.1 Celsius/year
  • Long term drift (RH): <0.5%RH/year
  • Resolution (T) : 0.1 Celsius
  • Resolution (RH) : 0.1% RH
  • Sensor Type: Capacitive sensor
  • Interface: 4-pin SIP (one no-connect)
  • Communication: single bus
  • Housing material: PC
  • Net weight: 2.4g

Downloads & Documentation

Product Specific Downloads
Download Details More Info
CM2302 Temperature & Humidity Sensor Datasheet - 1.76 MB | updated: 19 Jan 2018 - 5:00 pm

Additional Resources