Expansion board EXT-ANALOG is a small electronic accessory, which is fixed on some TRMC modules. This card provides 8 channels of analog measurements. Thanks to this card, the dataloggers TRMC-19 and the TRMC-5 have analog inputs, which can be used in many applications (Hydrogeology, Industry, Geotechnics, ...).

The analog inputs are compatible with the signals of the sensors industry (4-20mA, ...). The measurement card allows the power supply of the sensors wich must be monitor. So a lot of energy is spared. The applications are battery powered for a long time.