Frequency counters are digital indicating meters for accurate measurement and display of square wave and pulse input signals. There are several types of frequency counters which differ in frequency ranges and the number of digits that can be displayed. A digital counter represents the count in digital form. A frequency counter is an electronic instrument used to measure frequency and time. Digi... (read more)

The P635 is a single-width, 3U, PXI bus module with eight frequency measurement channels. This counter module can be used to monitor a variety of pulse sources. Moreover, its unique circuitry allows the monitoring of a wide range of frequencies without changing any module settings. (read more)

# The model 1856D provides versatility and reliability for a broad spectrum of laboratory and service applications. RS232 Interface # Wide measuring range up to 3.5GHz # Bright nine digit LED display # Period mode for accurate low frequency measurement # Totalize mode permits counting of individual events # Accurate TCXO time base (read more)

BK Precision 1823A Universal Frequency Counter, 2.4 GHz, with Ratio Function (read more)

Counting Devices, Inc. manufactures mechanical, multi, tally and diff counters for laboratory, industrial, transit uses and more. Anywhere counts are critical and anywhere you do this...Counting Devices, Inc. can help!! (read more)

Counting Devices, Inc. manufactures mechanical, multi, tally and diff counters for laboratory, industrial, transit uses and more. Anywhere counts are critical and anywhere you do this...Counting Devices, Inc. can help! (read more)

Model 413 - No panel cut out required. Three Mode Operation: Lap, Elapsed and Total. Start/Stop Debounced input. Cascadable. Bright 0.6" Red LED's. 9999 or 59:59 display format. Programmable time base. MTBFC: 100,000 hours (read more)

The 2890A is a Dual Display 51,000 Count DMMs with exceptional accuracy and functionality. It offers superb performance with many features that are useful for trouble shooting electronic and electrical circuits or to test and evaluate circuits in a field service application. (read more)

Ultra wideband, directional antenna for USA medical, cellular, wireless LAN, WiMAX and 5.8GHz frequencies, model FPA4-0.7-6.0R/1562 can be wall-mounted indoors in a primary position where space is limited. The antenna is 1.9" x 8.6" diameter and weighs 520 grams. Frequency range is 600MHz to 6GHz and gain 4dBiC. (read more)

Calibrate turbine meters, frequency counters, vibration systems, vortex shedders, integrators and any other frequency devices in the shop with the Altek 942. Measure from 0.01 Hz to 250.00 KHz with resolution down to 0.01Hz. For slower signals, source or measure from 0.1 - 2000.0 CPM or 10 - 20000 CPH. Quickly indicate process signals, no more waiting around with stopwatch and calculator. (read more)