Counters

RS Components provides a versatile range of counters to suit a variety of devices and functions. With digital, electromechanical and purely mechanical counters available, RS provides a solution to industrial, commercial and project applications wherever precise counting and tallying is required. You'll find counters available from trusted brands such as Omron, Red Lion, Kubler, Hengstler and our own RS PRO selection.

Types of Counter

  • Digital counters - are electronic in design and will often have a digital display. These counters work off a latching circuit or "flip-flop" when the time gets to the set value the relay will switch from 1 position to the next (flip), then the next pre-set value it will switch back (flop). It latches in each position and holds it so that current can flow.
  • Asynchronous or ripple counters - consisting of a number of flip-flops these count a stream of pulses applied to the counter’s input. The output is a binary value whose value is equal to the number of pulses received.
  • Synchronous counters - provide a more reliable circuit for counting purposes, and for high-speed operation, as the clock pulses in this circuit are fed to every flip-flop in the chain at exactly the same time.
  • Decade counters - used to count decimal digits rather than binary.
  • Ring counters - have a cascade layout of flip-flops in a ring so that the output of the last is fed into the input of the first.
  • Mechanical counters - are built using mechanical components, They typically consist of a series of disks mounted on an axle, with the digits 0 through 9 marked on their edge.
  • Hour meters - are instruments used to track and record elapsed time, normally displayed in hours and tenths of hours. Most hour meters are used to log the running time of equipment for proper maintenance of devices or machines.

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Description Price Supply Voltage Count Mode Display Type Input Type Connection Type Reset Method Number of Digits Mounting Type Output / Interface Count Direction Digit Height Backlighting Maximum Count Frequency Display Range
RS Stock No. 882-6970
Mfr. Part No.722-0002
BrandTrumeter
TWD673.00
Each
units
90 → 264 V ac - Analogue Voltage Spade Terminal No Reset 6 Flush Mount Voltage - 3.6 mm - 50 Hz, 60Hz -
RS Stock No. 348-2146
Mfr. Part No.H7ER-NV
BrandOmron
TWD3,239.00
Each
units
- Seconds LCD Voltage Screw No Reset 4 Panel Mount - - 8.6 mm - 1kHz 0 → 9999
RS Stock No. 882-6992
Mfr. Part No.7400AS
BrandTrumeter
TWD785.00
Each
units
2.6 → 3.4 V dc Pulse LCD Voltage - External, Negative Edge Triggered, Push Button 8 PCB Mount CMOS Bi-Directional 8 mm - 10kHz -
RS Stock No. 348-2118
Mfr. Part No.H7ER-N-B
BrandOmron
TWD3,072.00
Each
units
- Seconds LCD No Voltage Screw No Reset 4 Panel Mount - - 8.6 mm - 1kHz 0 → 9999
RS Stock No. 712-6705
Mfr. Part No.ISI30.013AA01
BrandBaumer
TWD2,413.00
Each
units
10 → 260 V ac/dc Impulses LCD Voltage Screw Electrical, Manual 8 Panel Mount - Bi-Directional 8 mm - 12kHz -9999999 → 99999999
RS Stock No. 185-5980
Mfr. Part No.703TXR002N-1248D
BrandCurtis
TWD1,008.00
Each
units
12 → 48 V dc Impulses LCD Voltage Tab Electrical 6 Flange Mount - Up 5 mm - 500Hz 0 → 999999
RS Stock No. 348-1878
Mfr. Part No.H7EC-NV
BrandOmron
TWD2,461.00
Each
units
- - LCD Voltage Screw Manual 8 Panel Mount - Up 8.6 mm - 1kHz 0 → 99999999
RS Stock No. 348-1856
Mfr. Part No.H7EC-NV-H
BrandOmron
TWD2,777.00
Each
units
- - LCD Voltage Screw Manual 8 Panel Mount - Up 8.6 mm Yes 1kHz 0 → 99999999
RS Stock No. 348-2130
Mfr. Part No.H7ER-NV-BH
BrandOmron
TWD3,308.00
Each
units
- Seconds LCD Voltage Screw No Reset 4 Panel Mount - - 8.6 mm Yes 1kHz 0 → 9999
RS Stock No. 185-6078
Mfr. Part No.701RR002N-1248D2060A
BrandCurtis
TWD1,278.00
Each
units
12 → 48 V dc, 20 → 60 V ac - LCD Voltage Tab Electrical 6 Panel Mount - - 5 mm - - 0 → 99999.9
RS Stock No. 896-6927
BrandRS PRO
TWD524.00
Each
units
90 → 264 V ac - Analogue Voltage Spade Terminal No Reset 6 Panel Mount - Up 3.6 mm - 50 Hz, 60Hz -
RS Stock No. 348-1979
Mfr. Part No.H7ET-NFV
BrandOmron
TWD3,444.00
Each
units
24 → 240 V ac/dc - LCD Voltage Screw Manual 7 Flush Mount - - 8.6 mm - - 0 → 3999 d 23.9 h, 0 → 999999.9
RS Stock No. 921-1739
Mfr. Part No.7000AS
BrandTrumeter
TWD878.00
Each
units
2.6 → 3.4 V dc Frequency LCD Logic Lead External 6 Panel Mount, PCB Mount - Bi-Directional 6 mm - 10kHz -
RS Stock No. 896-6905
BrandRS PRO
TWD507.00
Each
units
90 → 264 V ac - Analogue Voltage Spade Terminal No Reset 6 Panel Mount - Up 3.6 mm - 50 Hz, 60Hz -
RS Stock No. 348-1957
Mfr. Part No.H7ET-N
BrandOmron
TWD2,319.00
Each
units
4.5 → 30 V dc - LCD - Screw Manual 7 Flush Mount - - 8.6 mm - - 0 → 3999 d 23.9 h, 0 → 999999.9
RS Stock No. 808-6636
BrandRS PRO
TWD3,288.00
Each
units
24 V Impulses LED Transistor Flying Lead Automatic, Manual 6 Panel Mount Relay Down, Increment, Up 8 mm, 13.2 mm - 20kHz 0 → 99.99
RS Stock No. 687-6143
Mfr. Part No.H7CX-AW-N
BrandOmron
TWD9,468.00
Each
units
100 → 240 V ac Seconds LCD Voltage Screw Automatic, Manual 6 Panel Mount Contact Bi-Directional 10 mm - 5kHz -99999 → 999999
RS Stock No. 297-1128
Mfr. Part No.0.135.200.373
BrandKübler
TWD1,386.00
Each
units
10 → 80 V dc - - Voltage Tab No Reset 6 Clip - Up 3.5 mm - - 0 → 99999.9
RS Stock No. 808-6627
BrandRS PRO
TWD3,050.00
Each
units
230 V ac Impulses LED Transistor Screw Clamp Automatic, Manual 6 Panel Mount Relay Bi-Directional 8 mm, 13.2 mm - 20kHz 0 → 99.99
RS Stock No. 348-1929
Mfr. Part No.H7EC-N
BrandOmron
TWD1,942.00
Each
units
- - LCD No Voltage Screw Manual 8 Panel Mount Voltage - 8.6 mm - 1kHz -