Wireless humidity sensor

Wireless humidity sensor

Item nr. W30 Category
The CMA wireless humidity sensor measures relative humidity between 0 and 100%, and simultaneously measures air temperature. Based on these measurements, it calculates the dew point. The sensor, housed inside a perforated aluminum probe, uses a polymer-based capacitive element combined with a silicon temperature sensor to measure both humidity and temperature.

19 in stock, ships in 2 business days

Description

The humidity sensor is equipped with an OLED color display that shows sensor information and measured values. This makes the sensor suitable for use as a standalone measuring instrument.
The sensor can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 Lite programs/apps on computers (Windows and Mac), Chromebooks, and mobile devices (Android and iOS).

Technical specifications:

  • Measuring ranges: humidity 0 .. 100% RH / temperature – 40 .. 125 °C
  • Accuracy : ± 2% RH (@0 ~ 80%RH) / ± 0.25 °C (@-40 ~ 60°C)
  • Warrantee: 36 months
  • OLED display: 0.96” 128 x 64px
  • Response time: 15 s at 25 °C in slowly flowing air
  • Max. sample frequency: 60 Hz
  • Battery life: 12h when fully charged (rechargeable)
  • Connectivity: Bluetooth 5, Low Energy (Mac, Android, iOS), Bluetooth 2.1, Classic (Windows), or USB-C 2.0

Full sensor specifications can be found in the Product Manual, see Downloads.

Suggestions for science experiments:

  • Measure indoor humidity and temperature over a day to observe daily fluctuations
  • Compare humidity levels in different rooms of a school to see microclimate differences
  • Track outdoor humidity and temperature changes and correlate with local weather reports
  • Measure how quickly a sealed container reaches equilibrium humidity after adding water
  • Study the effect of a fan or ventilation on humidity and temperature in a closed space
  • Observe dew formation by cooling a surface and measuring the dew point
  • Compare humidity readings in warm vs. cold environments to see how temperature affects relative humidity
  • Monitor humidity and temperature in a greenhouse or terrarium over time
  • Test how well an air humidifier works in different rooms

Additional information

Weight 0,16 kg
Dimensions 19 × 8 × 4 cm

Product manual

Download

Working with wireless sensors

Download