The Polarmoist sensor uses near-infrared light to measure the surface moisture of the material.
Measuring range: 0 – 20% moisture, calibrated for sand. Stone 0 – 10%. Other ranges and materials on request.
Material limits: From powder to any size.
Sensing distance: 2 – 5 ft.  Measurement (viewing) area is dependent on distance from sensor
Analog output: 0-20Ma or 4-20mA, 0-10V, 2-10V for 0-16% moisture. Output is isolated by signal conditioner.
Digital RS232  connection: Bidirectional, 115.2 KBaud max.
RS232/RS485 Display & setup: Windows software allows access to setup and calibration menus.
Air purge: 1 – 2 liters per sec.  8 mm fitting.
Power: 9 – 30VDC, < 5W
Sampling input: No sampling input provided to start/stop averaging process.
Accuracy: 0.3% moisture.
Temperature range: Full accuracy: 0-40°C (32-104°F).
Construction: Dustproof assembly for long life with little maintenance.