4 Digital Tachometer RPM Speed Meter+Bracket & Magnet Proximity Switch Sensor BU

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4 Digital Tachometer RPM Speed Meter+Bracket & Magnet Proximity Switch Sensor BU
Product Description
Feature
:
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
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Delivery details
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Payment
1.We accept paypal payment and only ship to the address on paypal payment (Gift address is OK!)
2.Payment via PayPal should be made within 7-15 business days after auction close. Otherwise, we will relist the item and report an Unpaid strike.
Delivery details
1.
95% percent of our item shipment have track number
, Item reach most countries within 7-30 days. (Actual transit time may vary and is best estimated but not guaran- teed.)
2.
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3.
If you can't get the post after 30 days from the day we sent to you , please contact us directly . We would be with you to resolve the case. Please trust us, we will provide best service with honest attitude.
4.
We wll check each item clearly before we sent it out.
We promise each item would be shipped, but sometimes less than 0.5% packages might be lost in the way, you could choose to let us send another same item again or ask for money back.
5.
If you want ship ship by express,such as EMS, UPS, DHL, Fedex ,please contact us ,we will let you know the fee.
Terms of sales
From:xinxinjz
About us
1.If you have any question or problem about the item, you can contact us, We will response you within 24 hours;We pride ourselves on the best customer service possible, which is evident of our current eBay feedback rating. We look forward to serving you.
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Feature: 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 ......