SENTRY ST-722 Non-Contact Tachometer Laser Sighting Auto Ranging

FEATURES
·         Non-Contact and Contact mode.
·         Non-contact measurement up to 40 inches/100cm away from target.
·         Laser sighting.
·         Auto Ranging/Fixed Decimal.
·         Tripod Mounting Bushing.
·         40 reading memories.
SPECIFICATIONS
Model Name ST722 ST723
Rotation Speed (non-contact) 6.0 ~ 99,999 RPM (rev/min) 6.0 ~ 99,999 RPM (rev/min)
Rotation Speed (contact) N/A 6.0 ~ 25,000 rpm (rev/min)
Revolution Count N/A 1 ~ 99,999 rev
Range of Surface Speed N/A 0.6~2,500.0 M/M (m/min)
0.7~2,734.0 Y/M (yard/min)
23.6~98,425 I/M (inch/min)
2.0~8,202.1 F/M (feet/min)
Lengh(cantact) N/A 0.1~9,999.9 M (m)
0.1~10,936 YD (yard)
0.3~32,808 FT (feet)
Accuracy 6.0 ~ 5,999.9 RPM : ±0.01% and ±1digit
6,000.0 ~ 99,999 RPM : ±0.05% and ±1digit 6.0 ~ 5,999.9 RPM : ±0.01% and ±1digit
6,000.0 ~ 99,999 RPM : ±0.05% and ±1digit
Surface speed, Length : ±0.5% and ±1digit
Detection Laser Diode
Resolution 6.0 ~ 9,999.9 RPM : 0.1RPM
10,000 ~ 99,999 RPM : 1RPM
Memory 40 Point
Dimensions 147x49x29 mm (5.79"x1.93"x1.14") 182x49x29 mm (7.17"x1.93"x1.14")
Include contact adapters.
Weight 95 g (3.35 oz.) without battery 95 g (3.35 oz.)without battery,
Contact adapter : 50 g (1.76 oz.)
Accessories 9V battery, Instruction manual,  Cone adapter (723),
Funnel adapter (723), Contact adapter (723),
Master Wheel (10cm) (723), Re ective tape 15x525mm (0.59" x 20.67"),
Carrying case, Box