[speedometer]

1. [HIGH RPM MEASUREMENT] - accurately measures revolution speed up to 9999rpm for various applications
2. [CLEAR LED DISPLAY] - 0.56inch 4-digit LED screen with green digits provides a clear and easy-to-read RPM reading
3. [QUICK RESPONSE & RELIABLE] - high and stable performance ensure quick response and reliable measurements
4. [WIDE VOLTAGE COMPATIBILITY] - compatible with DC 8-24V power supply, suitable for a wide range of applications
5. [COMPLETE PACKAGE] - includes LED Tachometer, Hall Proximity Switch, Round Magnet, and Cable for convenient installation

Specification:
Item Type: Tachometer
Operating Voltage: DC 8-24V, 40mA
Display: 0.56inch green LED, 4 digit reading
Measuring Range: 10-9999rpm
Measuring Accuracy: ±0.1%, reading±1digit
Display Refresh Rate: >3 times/sec
Overrange Display: Display 1 or -1 in the first digit position, none in the last three digit positions
Hall Proximity Switch Type: NPN NO
Tachometer Size: 79x26x43mm / 3.11x1.02x1.69in

Package List:
1 x LED Tachometer
1 x Hall Proximity Switch
1 x Round Magnet
1 x Cable

Notice:
1. Connect the plug correctly according to the wiring diagram.
2. The Hall switch is an NPN normally open type, and the detection distance of the Hall switch needs to be within 10 mm. The Hall switch is installed with a diameter of 12 mm and a wire length of 1m or less.
3. Avoid strong electromagnetic interference, the measurement wire is best to use shielded wire or twisted pair wire.
4. The counter and the clear input switch or circuit should be as close as possible to the terminals of the counter to make the line as short as possible.
5. Avoid the same tube or stranded wiring with strong electric wires or power wires to avoid unnecessary interference. If necessary, please use shielded wires, and the shielding layer is connected to the counting terminal +.
6. It is not recommended to use mechanical switches or micro