GLT530 borehole water level sensor 19mm in diameter GLT530 level sensor has high accuracy, small volume,stability,plus resistance to abrasion,oil,acid&alkali and high intensity gas lead cable ensured that it can meet the different occasions measurement requirements. no-polarity two wire current output. ♦It is widely used in well, standpipe, borewell, sewage, river and lakes treatment as well as channel, large rivers, l reservoirs and coastline monitoring. ♦This product has got intrinsic safety certification,explosion proof certification and CE certification. Specification Measurement range 1~200m H2O (1mH2O≈9.81kPa) diameter Ø19 Signal output 4~20mA  …