Digital Tachometer

The Contact Type Digital Tachometer is a versatile and reliable instrument designed to measure the rotational speed (RPM) of shafts, motors, gears, and other rotating equipment with high precision. It operates on a contact principle, where a sensing wheel or probe is placed directly on the rotating surface, ensuring accurate measurement even under varying load conditions.

The device features a large 5-digit LCD display, which clearly shows RPM readings along with function annunciations. Some models are equipped with an 18 mm high-visibility display, making it suitable for bright or dimly lit environments. Its measurement range of 0.5 to 19,999 RPM allows it to cover low-speed precision applications as well as high-speed industrial motors.

With dual-resolution capability—0.1 RPM for low-speed measurements and 1 RPM for high-speed operations—this tachometer delivers both accuracy and detail. The device also offers rapid sampling (0.8–1 second) to quickly capture rotational speed changes. The ±(0.05% + 1 digit) accuracy ensures that readings are reliable for quality control, maintenance, and testing purposes.

Powered by 3 AA batteries, the tachometer is lightweight and portable, making it convenient for use in workshops, production floors, laboratories, and field operations. The robust casing and compact dimensions (170 × 70 × 35 mm) provide durability and ease of handling.

Additional features may include data hold, maximum/minimum RPM memory, and automatic shut-off, depending on the model, further enhancing functionality for industrial and laboratory applications.

• Contact type measurement for precise RPM readings

• Wide range: 0.5–19,999 RPM

• High accuracy: ±(0.05% + 1 digit)

• Clear 5-digit LCD display (10 mm or 18 mm)

• Fast sampling time: 0.8–1 second

• Lightweight and portable design

• Battery-powered for easy field operation

• Rotational speed measurement in motors and machinery

• Laboratory and workshop testing

• Quality control in manufacturing processes

• Maintenance and troubleshooting of mechanical equipment

• Educational demonstrations in engineering laboratories