... Level Indicator; 2. Approved ISO9001: 2008, CE, ROHS... 3. Applied for water, liquid, oil; 4. OEM, ODM. Model: BI-01Product Name: Magnetic Level IndicatorMedium ... , magnetic level indicator, pressure transmitter, pressure sensor, temperature transmitter, temperature sensor, flow indicator, flow meter, flow sensor, flow switch, gas detector etc. Magnetic Level Indicator water level indicator