"Product description To check the tension of the toothed belts and V-ribbed belts Measurement according to the latest method = frequency measurement in Hertz.
With data book, settings and correct position of the sensor on the belt drive Easy to use by one person LED display and acoustic measurement signal Automatically shuts down after 120 seconds In a sturdy plastic caseApplication areas: vehicle maintenance, belt replacements, suitable for cars through to vans "