UniSource FC-8300 Frequency Counter has a frequency measuring range of 0.1Hz to 150MHz in A input / 80MHz to 3.7GHz in C input. Input A measures Period, Total, and RPM. 9 Digit display with 0.01 mHz resolution in 1 Sec (By Ext.

Extech 160272 digital counting scale features: Battery operated, weighs and counts components with highest precision;Capacity of 6lbs/3kg; Count then press PRINT to transmit: Piece Count (6 digits), Piece weight (5 digits), Count weight (5 digits) via RS-232 port to a PC; Uses strain gauge load cell for high accuracy of 0.01FS+2d; Weight displayed as net/gross, lbs/kgs; Auto Zero & Tare function. Extech 160272 Precision Counting Scale includes PC Interface. Discontinued product.

Protek C3100 Programmable 2.4GHz Universal Counter features: Highly accurate frequency measurements to 2.4GHz; Measures Frequency, Period, Duty Cycle, RPM, Frequency ratio, Difference; frequency, Time interval and Totalize; Nine measurement functions; Plots trend graph on LCD display; Compare, Relative Error and Min/Max functions; Standard RS-232 with optional GPIB interface; Eight setup screens may be saved and retrieved from memory; Software for controlling, displaying data and data logging; Operates on all line voltages from 85V to 270V without any changes. Product Discontinued.

Protek CL200 3 1/2 Digit 2000 Count LC Meter features: Six capacitance ranges and four; inductance ranges; High accuracy measurement; Automatic zeroing; Low battery indicator; Fuse protected input, etc. Product Discontinued.

Protek C3100 GPIB Programmable 2.4GHz Universal Counter with GPIB (8 bit GPIB interface for faster data transfere) features: Highly accurate frequency measurements to 2.4GHz; Measures Frequency, Period, Duty Cycle, RPM, Frequency ratio, Difference; frequency, Time interval and Totalize; Nine measurement functions; Plots trend graph on LCD display; Compare, Relative Error and Min/Max functions; Eight setup screens may be saved and retrieved from memory; Software for controlling, displaying data and data logging; Operates on all line voltages from 85V to 270V without any changes.