5 digit microprocessor based, battery powered hand-held tachometer/counter with data memory. The 4HT600 has eight measuring ranges and three modes. Mode change is effected by pressing the MODE button. The instrument can be operated in optical or direct contact modes (using adaptor supplied). The power turns off automatically 30 seconds after the last operation to conserve the batteries. Three readings (the last, the maximum and the minimum) are recorded in memory and can be re-displayed at any time after the power has turned off by pressing the MEM button.

Features:
-RPM,speed and distance measurement
-5 digit 10mm (0.39in) high contrast LCD display
-Fixed or floating decimal point
-Comprehensive set of annunciators indicate mode, range and memorised data
-Rugged design, fits comfortably in the hand
-Accurate to ±0.02%
-Measures rotation speed down to 1 RPM
-Automatic power-saving shut off with display memory recall
-Low battery indicator
-CE approved
-The display flashes to indicate an over-range reading or resets to zero for under-range in rate modes.

Specification:
Display
-5 digit 10mm (0.39in) high contrast LCD, floating decimal
Measurement Ranges
-Rotation: 1 - 99,999RPM (contact and non-contact)
-Speed: 0.1 - 1,999m/min, 0.3 - 6,500ft/min or 4.0 - 78,000in/min according to measuring wheel
-Distance: 0.02 - 999.9 m, 0.01 - 999.9ft or 1.0 - 9,999in according to measuring wheel
Accuracy
-±0.02% (±1 digit, 0.02m or 1.0in)
Measurement Time
-0.5 sec or one period
Non-contact Measurement Distance
-600mm (23.62in) Maximum
Readings in Memory
-Last reading, maximum reading of last measurement and minimum reading of last measurement
Power Source
-2 x 1.5V Type AA batteries
Auto Power-off
-30s after last operation
Operating Temp
-0℃ to +50℃
Storage Temp
--20℃ to +70℃
Packed Dimensions
-260 x 207 x 68mm
Weight
-250g
Ordering Information
-4HT600 5 digit microprocessor based, battery powered hand-held tachometer/counter with data memory