Dear people:

I´m looking for a Relative Humidity Sensor and transmiter (4/20 mA) for Grain Moisture application. It could measure on-line to check grain moisture during process.

If somebody knows something please write at [email protected].

Thanks for your collaboration
Franco

 

Hi Franco,

a socalled NIR (near infra-red) sensor will do the job. But they are quite expensive (from 20000€).

One such manufacturer is NDC.

 

A much less expensive operation which should be able to give you some rough results would be a capacitive analog sensor.

Take a look at the PCA150 sensor on our web site:

www.gordonproducts.com

John Perrotti

 

Have you tried Vaisala? They have quite an array of devices and I would be surprised if they could not help you...

www.vaisala.com

 

Hi Franco,

You can try sensors from Sensirion (http://www.sensirion.com). currently i am involved in developing wireless sensor to monitor grain temp and relative humidity