WNK IP68 0.25%FS High Accuracy Submersible Water Level Transmitter The WNK8010-TT IP68 Water Level Transmitter is a premium high-precision submersible level sensor delivering 0.25%FS accuracy across measurement ranges from 1 meter to 200 meters water column. With dual 4-20mA analog + RS485 Modbus RTU output and IP68-rated 316L stainless steel construction, it is engineered for the most demanding water monitoring applications including deep wells, river gauging, water