Specification:- Resolution range: 21 mm - Signal: 0-190ohm - Working volt:9-32VDC - Operating current: 60mA - Operating temperature: -30~+75 - Storage temperature: -40~+85 - Sensor Height: Approx. 350mm / 13.8 inch - Sensor Length: 125MM/150MM/200MM/250MM/300MM/350MM/400MM/575MM -Assembly: 5 holes -Mounting: 5 pieces of M5 screws and 2 mm thick gasket -Protection rank: IP67 -Level Sensor Support : Water Level Gauge and Water Level GaugeAttention:- Empty oil level : 0 ohm / 240 ohm - Full oil level : 190 ohm / 33 ohm - When the oil / water level is empty , there will be a space of 3-21mm between the sensor float and the bottom of the sensor. This is a safe distance, and the sensor can work normally,Thank you~ - When the oil / water level is full, there will be a space of 3-15mm between the sensor float and the top of the sensor. This is a safe distance, and the sensor can work normally, Thank you~Package Includes:1 x Sensor 1 x Gasket 5 x Screws