LYWS 4 Digital LED Display Tachometer RPM Gauge Speed Meter Tester 10-9999 RPM with Hall Proximity Sensor Switch & Bracket (Green)

LYWS 4 Digital LED Display Tachometer RPM Gauge Speed Meter Tester 10-9999 RPM with Hall Proximity Sensor Switch & Bracket (Green)

Working power supply: DC8-24V, 40mA Display mode: 0.56"LED,4 Digital. measurement range: 10-9999RPM Measuring Accuracy: ±0.1, reading ±1 word. Measuring Accuracy: ±0.1, reading ±1 word. Display refresh rate: >3 times/sec Specifications:
Working power supply: DC8-24V, 40mA
Display mode: 0.56"LED,4 Digital.
measurement range: 10-9999RPM
Measuring Accuracy: ±0.1, reading ±1 word.
Display refresh rate: >3 times/sec
Overrange display: the first one shows "1" or "-1", and the latter three do not show
Physical dimension: 79x43x26mm
Precautions:
1.Connect the plug correctly according to the wiring diagram
2.Should avoid strong electromagnetic interference and it is better to use shielded wire or double stranded wire for measuring conductors
3.The counting signal of the counter and the switch of the zero clearing signal
input or the circuit shall be as close as possible to the terminal of the counter to
make the signal line as short as possible
4.Avoid with other such as: high voltage wires or power wires and so on with same
tube or twisted trace line, in order to avoid unnecessary interference.
If necessary, please use the shielded wire, shielding layer connect the"+" of the count terminals
5.It is not recommended to use a mechanical switch or micro switch
because they have a relatively short life span and can be counted by mistake after long time.
If you have to, please try better quality ones, strongly suggest a magnetic control switch
Package Included:
1 x Tachometer
1 x Hall NPN proximity sensor
1 x Bracket
1 x Magnet
1 x Cable