DIGITEN 4 Digital Green LED Tachometer RPM Speed Meter+Hall Proximity Switch Sensor NPN

Descriptions: Power requirement:DC 8-15V Measure range : 5-9999 RPM. Clear zero: Automatic. Clear zero time: about 10s.the greater the RPM value,the longer the clear zero time. Refresh frequency: 0.2-0.5S@120-1200RPM;0.25-0.06S@2400-9999RPM. Measure accuracy: RPM<5000,±2;RPM>5000,±3. Display: Green 0.56 inch LED Sign: Pusle signal,Hall NPN 3 wires normally open. Hall proximity model: NJK-5002C Appearance: M12mm cylinder. Detection range: 10 mm Proximity output current: 200 mA 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°C. Packaging include Tachometer x 1 Hall NPN proximity sensor x 1