Images are for reference only.

S660-1-1-2-0-0

Modes :: Count/Direction, Add/Add, Add/Subtract, Subtract/Subtract, Quadrature and Reverse Quadrature.

53220A/903/010

Keysight Technologies

Frequency Counters 350 MHz Universal Frequency Counter/Timer, 12 digits/s, 100 ps
53210A/903

Keysight Technologies

Frequency Counters RF Counter 350MHz 100-240V,US Pwr Cord
53220A/903

Keysight Technologies

Frequency Counters Universal Counter 100-240V,US Pwr Cord
53230A/903

Keysight Technologies

Frequency Counters Universal Counter 100-240V,US Pwr Cord
1856D

B&K Precision

Frequency Counters 3.5 GHz Multifunction Counter (Frequency, Period, Totalize)

Part	Manufacturer	Description
S660-1-1-0-0-0	Simpson Electric Company	Frequency Counters S660 SERIES COUNTER
S660-1-1-2-1-0	Simpson Electric Company	Frequency Counters S660 SERIES COUNTER
S660-1-2-2-1-0	Simpson Electric Company	Frequency Counters S660 Series Counter
S66011010	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, PLSE, 12V
S66011100	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, PLSE, 1R
S66011110	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, PLSE, 1R, 12V
S66012000	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, QUAD
S66012010	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, QUAD, 12V
S66012100	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, QUAD, 1R
S66012110	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, QUAD, 1R, 12V
S66012200	Simpson Electric Company	Analog Panel Meters TOTL, 120VAC, QUAD, 2R
S66021000	Simpson Electric Company	Analog Panel Meters TOTL, 240VAC, PLSE
S66021010	Simpson Electric Company	Analog Panel Meters TOTL, 240VAC, PLSE, 12V
S66021100	Simpson Electric Company	Analog Panel Meters TOTL, 240VAC, STD 1 R
S66021110	Simpson Electric Company	Analog Panel Meters TOTL, 240VAC, PLSE, 1R, 12V