Features: Experience unparalleled Precisions with our Digital LED Tachometer, featuring a high accuracy measurement ranges of 10 to 9999 Speed and a display refreshes rate for monitoring. designs with Not interferences Hall Sensoring, this tachometer ensures stable and accurate readings, complemented by a bright 4 bit LED display that's easily readable even in low light conditions. Suitable for engineers, technicians, and electronics enthusiasts who demand precise speed measurements for their power machinery and projects. This Multifunction tool is perfect for use in electronic lab, industrial production lines, or home appliance repair, providing reliable performances wherever accurate speed measurement is essential. Enhances your technical toolkit with this robusts and user friendly speed meter, complete with a plastic casing and detailed manual for easy setups and operation. Specifications: Material: plasic Voltages: 220V Size: about 79×42×25mm Accuracy: ± 0.1% Display Type: 0.56inch 3 different color display(optional) Four-digit reading: 10-9999 Speed Display refreshes rate :>3 times/second Working power supply: AC110~230V Package Includes: 1 set Digital Tachometer note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.