[COMPREHENSIVE SPEED RANGE]: Tachometer measures speeds in the range of 10 to 9999 rpm with high accuracy (±0.1%) and a refresh rate of more than 3 times per second. Versatile voltage: motor tachometer works with a wide supply voltage range of 8-24 V and is therefore suitable for various applications that require speed measurement. [LIVE LED DISPLAY]: High-precision tachometer. The 0.56 inch 4-digit green LED screen provides a clear and vivid display of the speed values and thus ensures good readability. Hall proximity sensor included: high-precision tachometer comes with a 3-wire NPN Hall proximity switch sensor for reliable speed measurement. Complete package: this kit contains an LED tachometer, a Hall proximity switch, a round magnet and a cable and offers a comprehensive solution for your speed measurement requirements. › See more product details; Product description Specification: item type: tachometer Operating voltage: DC 8-24V, 40mA Display: 0.56 inch green LED, 4-digit display. Measuring range: 10-9999 RPM Measuring accuracy: ±0.1%, reading ±1 digit. Display refresh rate: >3 times/sec. Exceeding range display: displays \; Product description Specification: item type: tachometer Operating voltage: DC 8-24V, 40mA Display: 0.56 inch green LED, 4-digit display. Measuring range: 10-9999 RPM Measuring accuracy: ±0.1%, reading ±1 digit. Display refresh rate: >3 times/sec. Exceeding range display: displays \; Specification: item type: tachometer Operating voltage: DC 8-24V, 40mA Display: 0.56 inch green LED, 4-digit display. Measuring range: 10-9999 RPM Measuring accuracy: ±0.1%, reading ±1 digit. Display refresh rate: >3 times/sec. Exceeding range display: displays \ Model: Size: Color: