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 3200A is a lightweight and portable lab grade power meter with a built-in frequency counter. This instrument is ideal for field-testing or laboratory use. Perform 100kHz to 2.6GHz CW power measurements over an 80dB dynamic range while the calibrator automatically performs background calibration. The meter also includes a frequency counter and the ability to download data via RS232 interface. (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)

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 MF2400 series consists of three frequency counters:

• MF2412B (20 GHz)
• MF2413B (27 GHz)
• MF2414B (40 GHz).

They are ideal for evaluating mobile radio communications devices and circuits, with the ability to measure the carrier frequency and pulse width of burst signals. In addition to displaying measurement results on a 12-digi... (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 Laureate Model FR is a UL-listed, 6-digit panel-mount frequency meter which can display AC line frequency to 50.0000 or 60.0000 Hz with 0.0001 Hz resolution in a few AC line cycles with quartz crystal accuracy. 1000 Hz signals may be read to 0.01 Hz at up to 25 readings/sec. The frequency range is 0.05 Hz to 1 MHz. The unit can also serve as a fast and flexible scalable rate meter. (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)

Laser Particle Counter model 3887 from Pacer Instruments displays 3 particle sizes simultaneously: 0.3, 0.5, and 5 micron. Applications include: Cleanrooms, IAQ investigations, Food Industry, Filter Testing, Aerospace, Hospital Surgical Rooms, Paint Spray Booths and others... (read more)

Our CH Series totalizing counters have a small panel footprint and are powered by a lithium battery (10 year battery life). They have a 7-digit LCD display, a push button reset, are panel mounted and accept a wide range of inputs. Their reset function can be disabled if desired. (read more)