Has good stability, high measurement accuracy.Strong antijamming ability.Setting parameters will be memorized when the power is turned off.With a standard size, easy to install.Suitable for detecting the speed of all types of motors.SpecificationsPower requirement DC 824VMeasuring range 109999RPMError range 0.1Clear Zero AutomaticClear zero time About 10sRefresh rate 0.20.5S1201200RPM,0.250.06S24009999RPMResponse frequency 100HZ.Measurement indication RPM Less than 5000.2,RPM more than 5000.3Character NPN 5 wires normally open.Display 52cm LEDDetection range 1mm10mm.Proimity output current 20mAFor the sensorOperating temperature 10 to 50 CelsiusSensor wires brownPower, blackTest, blueSignalColor blackMaterial plasticPackage contents1Tachometer RPM Speedometer1Hall Proimity Switch Sensor NPNOnly the above package contents, other products are not included.Note Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13cm.