HHT1500

The HHT-1500 Series is an accurate economical, non-contact optical digital tachometer. All units come complete with reflective tape and carrying case. An optional contact adaptor, HHT-1502CA is easy to attach and converts the unit to mechanical measurement. Users affix a tape on the shaft to be measured. The tachometer measures the time between reflected pulses of light and calculates the RPM.

SPECIFICATIONS
External TTL Input: High > 4.5V (HHT-1501)
Display 5 digits: 99999 counts
Sampling Rate: 0.7 second (> 60 rpm); > 1 second (10 to 60 rpm)
Measuring Distance: 50 to 300 mm (2 to 12")
Time Base: 4.0 MHz Quartz Crystal
Range Selection: Automatic
Battery: Four 1.5 V "AA" (included)
Auto Power-Off: 30 minutes
Operating Temp: 0 to 50°C (32 to 122°F)
Size: 72 L x 63 W x 36 mm D (6.8 x 2.5 x 1.5")
Weight: 190 g (6.7 oz) (including battery)