View: 100 200 All Monitor & WATERMARK sensors (9) Monitor R2-DL, R2-DX, R2-DX-smart, 3 R2-XD, R2-DM measure Watermark sensors from 0 to 239 cbar or kPa. IRROMETER Tensiometer and Lysimeter (9) Tensiometers measure tension of water in the soil from 0 to 80 cbar or KPa. Lysimeters extract soil solution