New Digital Hand Tachometers are compact and easy to handle. NIST Certicifcation is supplied with each Digital Hand Tachometer. Model PH-200LC (982-552) has Laser Diode Detection and a combination of Contact and Non Contacts measurement. Supplied with plastic carring case.

Model No.	PH-100A	PH-200LC
Revolutions per min. Rotation Speed	6.0-25,000 RPM	6.0-99,999 RPM
Surface speed	0.1-3,809.8 m/min; 0.1-4,166.4 yards/min 3-99,999 inch/min; 0.2-12,499 feet/min	0.1-3,809.8 m/min; 0.1-4,166.4 yards/min 3-99,999 inch/min; 0.2-12,499 feet/min
Total no. of revolutions:	0.1 99,999	1-99,999
1.0-559.9 rpm: +1 rpm, 600.0-25,000 rpm +0.006% and +0.5 digit.	1.0-559.9 rpm: +1 rpm, 600.0-25,000 rpm +0.006% and +0.5 digit.
Surface, Speed, Length	+0.4% and +1 digit	+0.4% and +1 digit
Display size	5 digit 0.47"(12mm) Ht. LCD
Memory function	14 reading are stored in memory & retained for 5 minutes (Last, Max, Min, average and 10 selectable measurement)
Detection	Optical coupler, 20 pulses per revolution	Laser diode
Batteries	3 AA 1.5 volts
Accessories	carring case, cone adapter, funnel adapter, master wheel (6"cir) NIST certificate, operation instructions, 35 reflective tabs (PH-200LC only)