Range	Resolution	Accuracy
RPM	10.00-99999	0.001/0.01/0.1/1	±0.04%±2 dgts
rps(HZ)	0.200-2000.0	0.001/0.01/0.1	±0.04%±2 dgts

   RPM (contact) :

	Range	Resolution	Accuracy
RPM/ (/symoblizes "Contact")	10.00-29999	0.001/0.01/0.1/1	±0.04%±2 dgts
m/min	1.000-2999.9	0.001/0.01/0.1	±0.04%±2 dgts
ft/min	3.000-10000	0.001/0.01/0.1	±0.04%±2 dgts
yard/min	1.000-3000	0.001/0.01/0.1	±0.04%±2 dgts

   Event contact :

Range	Max.Input Frequency
0-99999	10KHz. with 5% duty cycle

• External TTL Input : High > 4.5V (RM 1501)
• Display : 5 digits 99999 counts
• Sampling Rate : 0.7 second ( >60rpm)
                             > 1 second (10 to 60 rpm)
• Measuring Distance : 50 to 300 mm
• Time Base : 4.0MHz Quartz Crystal
• Range Selection : Automatic
• Battery : Four 1.5V batteries (AA, UM-3)
• Power Consumption : 1.5mA (Idle)
                                      27mA (Non-contact Measurement)
                                      34mA (Contact Measurement)
  
• Auto-Power-Off : 30 minutes
• Operating Temp : 0 to 50℃(32 to 122℉)
• Size : 172 mm × 63 mm × 36 mm
• Weight : 190g(including battery)
• Accessories : Carrying Case × 1, Reflective tape × 1, Instruction Manual × 1,
                          Software & RS-232 Cable (RM-1501)
  
• Optional Accessory : Contact Adaptor (RM-1502)