DIGITEN 4 Digital LED Tachometer RPM Speed Meter+Hall Proximity Switch Sensor NPN Red+Sensor Mounting Holder

Specification Power requirement: DC 8-15V Measure range : 5-9999RPM. Clear zero: Automatic. Clear zero time: about 10s. The greater RPM value, the longer clear zero time. Refresh frequency: 0.2-0.5S@120-1200RPM; 0.25-0.06S@2400-9999RPM. Display: RED 0.56 inch LED Sign: Pusle signal, Hall NPN 3 wires normally open. Hall proximity model: NJK-5002C Appearance: M12mm cylinder. Detection range: 10mm Proximity output current: 200mA Detected objects: magnet Response frequency: 100HZ Tachometer dimension: 72x36x20mm, panel cutout Dimension: 68x33mm. Sensor dimention: M12x10x55mm. Sensor wiring: brown--Power+; blue--Power-; black--signal. Operating temperature: 0 to 50℃. Package includes Tachometer x 1 Hall NPN proximity sensor x 1 Magnet x 1L-shaped sensor mounting bracket x 1 Tips： 1.Please confirm that all the wires are connected correctly. 2. The direction of the magnet must be correct. If it is not correct, please flip the magnet. 3.The distance between the magnet and the sensor must be kept at 2-3mm (0.07"-0.12").