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

• [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 signal 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.

Specifications: Measurement accuracy: ±0.1% Display mode: 0.56"LED Display refresh rate: >3 times/sec Working power supply: DC8-24V, 30mA, measurement range: 10-9999RPM Hall proximity switch : magnetic Appearance size: 80 x 42 x 25mm/3.14 x 1.65 x 0.98inch LED display(Optional): red, blue Weight: 80g(red),105g(blue) Overrange display: the first one shows "1" or "-1", and the latter three do not show Precautions: 1. Connect the plug correctly according to the wiring diagram 2. Should avoid strong electromagnetic interference and it is better to use shielded wire or double stranded wire for measuring conductors 3. The counting of the counter and the switch of the zero clearing input or the circuit shall be as close as possible to the terminal of the counter to make the line as short as possible 4. Avoid with other such as: high voltage wires or power wires and so on with same tube or twisted trace line, in order to avoid unnecessary interference.If necessary, please use the shielded wire, shielding layer connect the"+" of the count terminals 5. It is not recommended to use a mechanical switch or micro switch because they have a relatively short life span and can be counted by mistake after long time. If you use a mechanical switch or a micro switch, please try to use a better quality, so as not to miscount, and strongly suggest a magnetic control switch Package Included: 1 x Tachometer 1 x Hall NPN proximity sensor