RPM Speed Meter, Tachometer Digital Panel, Akozon 4 LED + Hall Proximity Switch Sensor NPN (Red)

[Accurate and Stable Performance] - This digItal speed panel features the latest A/D converter chip and a high stability reference integrated circuit, ensuring good stability, high precision, and strong anti-interference ability. Experience accurate and speed measurements with this tachometer. [Versatile Applications] - The exterior appearance of this tachometer is designed to be a standard size, making it convenient to install. It has a wide Range of applications, allowing you to measure voltage, current, and other physical quantities with ease. Suitable for various digital instrument displays. [Flexible Parameter Input Options] - This tachometer supports various input pulse signals, including NPN/PNP open collector, contact switch, non-contact switch, and level pulse. It can handle input voltage ranging from low level (-30V -0.6V) to high level (4-30V), ensuring compatibility with different devices. [4-Digit Display] - The LED display of this tachometer offers two color options, red and blue, and features a four-digit precision display. The display updates in real-time at a speed of more than three times per second, providing you with accurate readings at a glance. [Convenient Automatic Range Selection] - This tachometer has automatic range selection, allowing it to efficiently measure frequency in different ranges: 9999Hz, 999.9HZ, and 99.99KHZ. The automatic range selection saves you time and effort, allowing you to complete your work efficiently. [Range Automatic range] Measuring range: Frequency: 9999Hz, 999.9HZ, 99.99KHZ, automatic switching selection. Automatic range selection saves user time and effort. Efficient completion of work.