Protmex Digital Tachometer, 50-19999 RPM Contact Tachometer, 100 Groups Data Store Handheld Speed Meter with Backlight, Max/Min/AVG RPM Rotation Speed Gauge, PT6208A (Batteries Included) Contact Digital Tachometer Size:Contact Digital Tachometer the error range is between

the error range is between 1-3mm

The other three sides are Protected by steel cups that almost no magnetic force and magnetic force equivalent to 10 times the volume of the same magnet

Compatible with MDF Spoilboard with 6mm(0

making your work easier

much larger than mounting holes

Protmex Digital Tachometer, 50-19999 RPM Contact Tachometer, 100 Groups Data Store Handheld Speed Meter with Backlight, Max/Min/AVG RPM Rotation Speed Gauge, PT6208A (Batteries Included) Contact Digital Tachometer Size:Contact Digital Tachometer the error range is betweenProtmex Digital Tachometer, 50 19999 RPM Contact Tachometer, 100 Groups Data Store Handheld Speed Meter with Backlight, Max Min AVG RPM Rotation Speed Gauge, PT6208A (Batteries Included) Protmexs Story PROTMEX offers a high tech enterprise that concentrates on research, development, production manufacture, and sales. We manufacture and sell professional measurement instruments, such as Infrared Thermometers, Anemometers, Sound Level Meters, Humidity,