LUTRON DT-2234BL

Laser Photo TACHOMETER Model : DT-2234BL FEATURES * Laser light detecting source, long measuring range up to 2 meters, it is useful in the RPM measurement application where the machine would be a risk to the operator or close access is difficult or not possible. * Wide measuring range from 10 to 100, 000 RPM, 0.1 RPM resolution for the measured value < 1000 RPM. * Microprocessor based circuit, crystal time base, high precision with 0.05% accuracy. * High visible LCD display gives RPM reading exactly with no guessing or errors & saves battery energy. * Memory with recall function, the last value, max., value, min. value will be stored into the memory automatically. * The use of durable, long lasting components, including a strong, light weight ABS plastic housing, assures almost maintenance free performance for many years. SPECIFICATIONS Display 5 digits, 10 mm ( 0.4 " ) LCD , with function annunciation. Measurement & Range 10 to 99, 999 RPM. Resolution 0.1 RPM ( < 1, 000 RPM) . 1 RPM ( 1, 000 RPM ) . Accuracy ± ( 0.05% + 1 digit ) . Detecting distance 50 - 2, 000 mm typically. Spec. of detecting distance are that under the size of reflecting tape is 10 mm square & the measuring RPM value is 1, 800 PPM. The max. detecting distance may change under different environment, different reflecting tape or the measuring RPM beyond 1800 PRM. Laser light source * Less than 1 mW. * Class 2 laser red diode. Wave length is 645 nm approximately. Time base Quartz crystal, 4.194 MHz. Circuit Exclusive one-chip of microcomputer LSI circuit. Operating Temp. 0 - 50  ( 32 - 122 ) . Operating Humidity Less than 80% R.H. Memory Last / Max. / Min. ... value. Battery 4 x 1.5V AA ( UM-3 ) battery. Power Consumption Approx. DC 20 mA. Size 190 x 72 x 37 mm ( 7.5 x 2.8 x 1.5 inch ) Weight 250g ( 0.55 LB ) / including battery. Accessories Included Carrying case 1 PC Reflecting tape marks ( 600 mm ) 1 PC Operation manual 1 PC