Fafeicy 5 Digit LED Digital Tachometer, RPM Speed Meter with Hall Proximity Switch Sensor for DC Brushless Motor Speed Measurement

Spec: Item Type: DC Brushless Motor LED Tachometer Material: ABS Detection Range: 30 RP​ RPM Mode Selection: Mode 3: Calculate Signal Frequency, Mode 4: Calculate Signal Speed Division Factor: Number of Signal Cycles of the Motor Frequency Division Coefficient 1. External Hall Sensor: A frequency division coefficient of 1 is sufficient. 2. Brushless Fans, Computer Fans, Server Fans: The frequency division coefficient is generally 2, with some instances being 3. 3. Brushless Drivers, Built In Brushless Motors: Set according to the driver instructions, common frequency division coefficients are 3, 6, or 12. Division factors can be found or estimated through motor instructions. Server fans, high speed brushless motors: speed is generally below 20000 RPM at standard voltage. Conventional motors or fans: speed range is around 3000-8000 RPM at standard voltage. Filtering and Display Stability: 1. This meter only reflects the signal condition, display jitter is mainly related to test conditions. 2. The assembly accuracy of the brushless motor hall, motor shake, and load status will cause speed fluctuations. 3. Adjusting the filter coefficient can provide an average display of speed values for easy observation. The value changes slowly with a filter coefficient of 16. Package List: 1 x Display Module 1 x Sensor 1 x Magnet Assembly How To Use: Take out the LED tachometer and install it before use.

• [Wide Voltage Range for Versatility] Designed to operate efficiently within a dc voltage range of 5v to 30v, this rpm speed meter is compatible with a variety of power sources and devices.
• [Frequency Division and Filtering Technology] This digital tachometer incorporates advanced frequency division and filtering capabilities to enhance reading accuracy and stability.
• [High Precision 5 Digit Led Display] This advanced tachometer features a 5-digit led display that ensures exceptional accuracy and clarity.
• [Easy to Use and Highly Flexible] This tachometer offers multiple modes, including rpm and frequency calculation, to suit your specific needs.
• [Long Hall Sensor for Stable Measurements] Equipped with a 1-meter long hall sensor, this tachometer delivers unmatched stability and accuracy in speed sensing.