The Unico Tachometer (#C800-75) includes standard adhesive reflective tape, batteries, and a storage case. Warranty: 1 Year. The photo-tachometer uses a laser strobe to check the RPM of the centrifuge rotor. It is designed for use with Unico centrifuges that feature a lid window. Compatibility: PowerSpin BX (#C881, #C882, #C883, #C884, #C885, #C886, #C887). PowerSpin FX (#C806, #C806H, #C808, #C808H). PowerSpin HX (#C8302). PowerSpin HXV (#C8306, #C8308, #C8312). PowerSpin LX (#C856, #C856H, #C856E, #C856HE, #C858, #C858H, #C858E, #C858HE, #C858D). PowerSpin PX (#C826, #C826H, #C827, #C827H, #C828, #C828H, #C829, #C829H). The versatile tachometer is also compatible with previous models, such as the PowerSpin VX (#C816 and #C818). Features Unico Tachometer Features RPMs instantly display on large LCD screen. Highly accurate scientific tool. Utilizes AA batteries. Literature Unico Tachometer Literature Unico PowerSpin Centrifuge Selection Guide Digital Photo Tachometer Operation Manual