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1Set Measuring Gauge 4 Digital Red LED Tachometer RPM Speed Meter 10-9999RPM Hall Proximity Switch Sensor NPN — image 1
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1Set Measuring Gauge 4 Digital Red LED Tachometer RPM Speed Meter 10-9999RPM Hall Proximity Switch Sensor NPN

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product for everyday users

The 1Set Measuring Gauge 4 Digital Red LED Tachometer RPM Speed Meter 10-9999RPM Hall Proximity Switch Sensor NPN is a mid-range product designed for everyday users. Customers praise its easy to set up and use. 100% of buyers rate it 4★ or above.

easy to set up and use
₹1,765-26%
MRP:₹2,396Save ₹631
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Total: ₹1,765
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 27 Aug10 Sept
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SKU: bg-1975485

About This Product

The 1Set Measuring Gauge 4 Digital Red LED Tachometer RPM Speed Meter 10-9999RPM Hall Proximity Switch Sensor NPN is a mid-range designed for everyday users. Customers highlight its easy to set up and use.

Customer Verdict

100% of buyers rated this product 4 stars or above. The most appreciated qualities are: easy to set up and use.

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Description :

Digital Red LED Tachometer RPM Speed Meter + Proximity Switch Sensor NPN

Specification :

Power requirement : DC 8-15V or AC6-18V.
Measure range : 99999 ~ 3.8RPM.
Error range : ± 0.5 ‰ - 1.5 ‰ rpm
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<5000, ±2), (RPM>5000, ±3).
Sign : NPN 3 wires normally open.
Display : 5 x 2.5cm red LED.
Tachometer size : 78 x 42 x 13mm.
Panel cutout size : 71 x 38mm.

Hall proximity model : NJK-5002C .
Detected objects : Magnet.
Detection range : 1mm-10mm.
Proximity output current : 20mA(For the sensor).
Operating temperature : -10 to 60°C.
Sensor wiring : brown(Power+), blue(Power-), black(signal).
Sensor size : 37 x 12 x 10mm

Package Included:

1 x Tachometer RPM Speed Meter
1 x Hall Proximity Switch Sensor NPN


Product Safety Information

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.