Sykes 300430 Infra Red Laser Tachometer 6576370 FROM 07 98 1998 2000 (Front) ZFCT361 FROM 07 98 1998 2000 (Front) yellow metals and non ferrous metals and can be applied to various materials in a low foam performance even in high flow delivery Infra red laser picks up signal from reflective tape which is placed on the rotating shaft Features bright and powerful laser optical system for easy targeting of rotating object even in bright daylight Measurements can be obtained from safe and comfortable distances from 5 to 50cm The large 5 digits display allows measurements without the need to switch scales or multiply reading ranges Unit comes complete with batteries and reflective tape in a soft carrying pouch