Akozon Digital RPM Speed Meter - 4 Digital LED Tachometer + Hall Proximity Switch Sensor NPN (Red)

About this item

• •Specifications:
• •Measurement accuracy: ±0.1%
• •Display mode: 0.56"LED
• •Display refresh rate: >3 times/sec
• •Working power supply: DC8-24V, 30mA, measurement range: 10-9999RPM
• •Hall proximity switch : magnetic
• •Appearance size: 80 x 42 x 25mm/3.14 x 1.65 x 0.98inch
• •LED display(Optional): red, blue
• •Weight: 80g(red),105g(blue)
• •Overrange display: the first one shows "1" or "-1", and the latter three do not show
• •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 of the counter and the switch of the zero clearing input or the circuit shall be as close as possible to the terminal of the counter to make the 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 use a mechanical switch or a micro switch, please try to use a better quality, so as not to miscount, and strongly suggest a magnetic control switch
• •Package Included:
• •1 x Tachometer
• •1 x Hall NPN proximity sensor

Specifications