These instruments are ideal for checking speeds of totally enclosed electrical equipment. Just hold the Tachometer against motor, turbine, pump, vacum cleaner, hair dryer or other similar equipment anywhere and read the speed.
These Tachometers are mounted in cases of cast aluminium alloy finished with black crackle enamel. Also available with bosses for permanent mounting.
Lowest possible speed is 600Rpm and the highest is 30, 000Rpm.