LP20E 2 Axis Digital Display DRO Magnetic Sensor Tape Displacement Readout3156. System accuracy: + (0.03+0.01L) mm L unit: 1meter Repeatability: Max. 500UA (backlight not opened) Power supply: 3pieces batteries, Batteries not included (AA)(storage) / DC12-24V(for working) Operating temperature: 0 degrees Celsius -60 degrees Celsius Storage temperature: -10 degrees Celsius -70 degrees Celsius Outline size: 96x72x43mm Mobile speed: Max. 4m/s Read space: Max. 2.5mm, recommended 1.5mm Matching magnetic stripe: TR50 Waterproof grade: digital display IP40, read IP60 Slight color difference or discrepancy in real life does not affect the use of, Colour:Photo Color Material:plastic Package Contents: 1 x LP20E display sensor.