Temperature & Humidity Sensors

CWi Technical Ltd select sensors for inclusion in their systems based on quality, accuracy and reliability. If a sensor is in our list, it means we have the utmost confidence in its performance and reliability, and it fits the quality criteria for inclusion in datashare.

RHT2nl

The RHT2nl sensor utilises the hygrocor internal sensor from Gefran which is now marketed by Michell Instruments. The unit is a high accuracy sensor with a temperature resolution of 0.1°C and a humidity accuracy of ±2%. The sensor can be integrated into any logger that has capability for resistance thermistor input and mV humidity input.

The sensor has a plug in module which can be changed once the sensor ages and the drift of the sensor is too much. The plug in modules are affordable and easy to replace. The sensor comes with a screen shield to diminsh the effects of direct solar radiation, and the sensor can be pole mounted easily.

 
0%
CWi Assessment
100%
Quality
Reliability
Cost

RHT3nl-CA

The RHT3nl-CA sensor comes preconfigured on the GP1-WS system for fast deployment at low cost. Again, gefran sensors are used in the equipment and this is an all round quality sensor, allbeit with a smaller screen and slightly lower accuracy that the RHT2nl model Temperature accuracy is to 0.2°C and humidity to ±2.5% between 5 and 95%.

The sensor has a plug in module that can be changed periodically to ensure the sensor reading remain within calibration. These are cost effective to replace.

 
0%
CWi Assessment
100%
Quality
Reliability
Cost

MetPak II

The MetPak II and Pro Sensors are high quality precision air and humidity sensors. The pro version comes bundles with high quality ultrasonic wind sensors as well as baromteric pressure and the facility for analog and digital inputs.

Air temperature is accurate to 0.1°C and humidity to ±0.8%

The sensor employs a replacment module should the system go out of calibration (drift)

 
0%
CWi Assessment
100%
Quality
Reliability
Cost
Weather Systems Limits - Loading Set Parameter Limits