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The new CHECK-LINE® BTM-400PLUS accurately measures the static tension of flat, V and ribbed belts of rubber, leather, fabric and composite materials by measuring the natural frequency (Hz) of a segment of the belt that has been tapped and then converting it into tension units of newtons (N) or pounds force (lbf).

The instrument uses a pulsed ruby red light source to measure the natural frequency of the vibrating belt. Unlike competitive models, the BTM-400PLUS is NOT affected by ambient noise, providing quick reliable results in all production and field applications.

Includes two (2) separate Sensors

– a plug-in type for one-handed operation and a cable

-connected type for measuring belts with limited access space

Compact, easy-to-use design

Readings unaffected by nearby magnetic fields or noise

Displays tension in newtons (N) or pounds force (lbf) or natural frequency in Hertz (Hz) - selectable

Displays Menu in English, German, Spanish, Portuguese, French or Italian & others - selectable