Feature: 1. Input level transmitter, high diffusion of silicon, more monitoring of water level. 2. All digital conditioning circuit, 4-20mA signal output is more stable. 3. IP68 multilayer waterproof protection, to use. 4. 45 degree oblique anti-shock, detachable anti-blocking designed. 5. The measured medium is water do not corrode stainless steel. Specification: Item Type: Liquid Level Sensor Tested Medium: Water (liquid does not corrode stainless steel) Air Guide Cable Length: 5 Range: 1-5m Output Signal: 4-20mA Supply Voltage: 12-32VDC Medium Temperature: -20-75 Temperature: -30-80 Temperature Compensation: -10-70 Overload Capacity: Less than 200% Protection Level: IP68 Temperature Source Shift: 0.01% / Long-term Stability: 0.2% / year Machine Impact: 20g (20-5000HZ) Material: Stainless steel colour: silver+black Package Contents: 1 x Liquid Level Transmitter Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.