The Voltcraft DT-10L hand-held instrument uses laser technology for non-contact measurement of rotational speed. The laser unit not only allows non-contact measurement of rotating parts, it is also very precise and can even be used in daylight conditions. Results are shown digitally on a backlit LCD display. The DT-10L can be used to measure engine speed in rpm or for event-counting .The device is battery powered but has a connector allowing use with an external 9VDC power supply. * Counter function * Measuring range counter: 1 - 99,999 events * Non-contact reading range - speed: 2 to 99,999 rpm * RPM accuracy: ± 0.05% +1 digit * Speed resolution: 0.1 rpm * Reading distance: 50 to 500mm * Temperature range: 0 to 50°C * Optional calibration to ISO/DAkkS * 5 digit backlit LCD * Battery saving auto-OFF function * Battery 9V included * Dimensions, height: 160 mm * Dimensions, width: 58 mm * Weight: 151 g https://elecena.pl/product/27162571/voltcraft-dt-10l-tachometer 2024-11-07 https://elecena.pl/product/27162571/voltcraft-dt-10l-tachometer 2025-04-12 https://elecena.pl/product/27162571/voltcraft-dt-10l-tachometer 2025-06-01 https://elecena.pl/product/27162571/voltcraft-dt-10l-tachometer 2025-09-08