4 Digital LED Display Tachometer RPM Speed Meter High Precision with Hall Proximity Switch Sensor NPN

4 Digital LED Display Tachometer RPM Speed Meter High Precision with Hall Proximity Switch Sensor NPN Description

Have good stability, high measurement precision.
Strong anti-jamming capability.
Setting parameters be memorized when power off.
With a standard size, easy to install.
Suitable for detecting the speed of every kind of motors.

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 Less than 5000,2),(RPM more than the 5000,3)
Sign: NPN 5 wires normally open.
Display: 5 x 2cm LED
Detection range: 1mm-10mm.
Proximity output current: 20mA(For the sensor)
Operating temperature: -10 to 50 Celsius
Sensor wiring: brown(Power+), black(Test+),blue(signal)
Colour:black
Material:plastic

Package Contents:
1 * Tachometer RPM Speed Meter
1 * Hall Proximity Switch Sensor NPN

Only the above package content, other products are not included.
Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.