High Precision Digital Frequency Tachometer 0.56" 4 LED DC 8-15V Car Motor Speed Meter RPM Speed Tes

Red LED Specifications: ? Power requirement:DC 8-24V Measure range:10 ~ 9999RPM. Error range: 0.1% Clear zero:Automatic . Clear zero time:About 10s. Refresh frequency: 0.2-0.5S(120-1200RPM),0.25-0.06S(2400-9999RPM). Response frequency:100HZ. Measure indication:(RPM<5000,&pm;2),(RPM>5000,&pm;3). Sign:NPN 5 wires normally open. Display:5 x 2cm red LED. ( Please contact us if you want other colors ! +1USD ) Tachometer size:79 x 43 x 26mm. Panel cutout size:76 x 39.5mm. Hall proximity model:NJK-5002C . Detected objects: Magnet. Detection range: 1mm-10mm. Proximity output current: 20mA(For the sensor). Operating temperature: -10 to 60?ﾣC. Sensor wiring:brown(Power+),black(Test+),blue(signal). Sensor size: 60 x 10mm. ? Function Selection: ? 1.Reset or manual reset on power. 2.Store the data (no power). ? Pacage Include: ? 1 x Red LED Tachometer 1 x NPN Hall Proximity Sensor 1 x Magnet ? Details Pictures: