Digital Counters | McMaster-Carr

	Display Type Display Type


Digital	Light Indicator

	Resettable Resettable

Yes

	Counting Direction Counting Direction

Down

Up and Down

	Mounting Location Mounting Location

	Input Voltage Input Voltage

	Number of Digits Number of Digits

	Environment Environment

High-Pressure Washdown

	Electrical Connection Type Electrical Connection Type

Hardwire

Plug

Threaded

	Mount Type Mount Type

	Batteries Included Batteries Included

Yes

	System of Measurement System of Measurement

Inch

Metric

	Overall Width Overall Width

	Maximum Counts per Minute Maximum Counts per Minute

	For Panel Cutout Height For Panel Cutout Height

	Overall Height Overall Height

	Environmental Rating Environmental Rating

IEC Zone 0 Groups IIC,
IIB, IIA

NEC Class I Divisions
1, 2 Groups A, B, C, D

NEC Class II Divisions
1, 2 Groups E, F, G

NEC Class III
Divisions 1, 2

	Output Relay Current Output Relay Current

	Wire Connection Type Wire Connection Type

Screw Terminals

Wire Leads

Spade Terminals

Quick-Disconnect Terminals

	Minimum Operating Voltage Minimum Operating Voltage

	Housing Material Housing Material

Plastic

Zinc

Aluminum

Fiber-Reinforced Plastic

	Input Type Input Type

Switch Contact

Voltage

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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268 Products

Counting

DIN-Panel-Mount Electrically Actuated Counters

For quick installation, these counters fit into standard DIN panel cutouts.

Surface-Mount Electrically Actuated Counters

These counters have mounting holes and a base plate for securing to a wall or work surface.

Panel-Mount Electrically Actuated Counters

Slot these counters into a control or electrical panel cutout.

DIN-Panel-Mount Electrically
Actuated Counters with Output Relay

For quick installation, these counters fit into standard DIN panel cutouts.

Large-Display Combination
Switch-Contact/Electrically Actuated Counters

The digits displayed on these counters are visible up to 100 ft. away.

Combination Switch-Contact/Electrically
Actuated Counters

Combination Switch-Contact/Electrically
Actuated Counters with Output Relay

Large-Display Combination Switch-Contact/Electrically
Actuated Counters with Output Relay

The digits displayed on these counters are visible up to 100 ft. away.

Switch-Contact-Actuated Counters

These counters do not require voltage to register a count.

Counters with Proximity Sensor

Count metallic objects as they touch or pass within 0.059" of the built-in sensor.

Hand-Held Push-Button Counters

Counters/Ratemeters

Wire these counters/ratemeters to an electrical pulse-emitting switch, sensor, or encoder to count input while tracking rates in units such as gallons per minute.

DIN-Panel-Mount Counters/Ratemeters

For quick installation, these counters/ratemeters fit a standard 1/8 DIN panel cutout.

Switch-Contact-Actuated Hour Meters

These meters do not require voltage to register a count.

Panel-Mount Electrically Actuated Hour Meters

Slot these counters into a control or electrical panel cutout.

Electrically Actuated Hour Meters with Output Relay

Send a signal to another device when the counter reaches a set point. The signal can start/stop a process or trigger an alarm.

Electric-Motor-Actuated Hour Meters

With a sensor that’s activated by your electric motor’s magnetic field, these meters show the motor’s running time.

Vibration-Actuated Hour Meters

Record the running time of machines and vehicles that vibrate while operating.

DIN-Panel Cutout Adapters

Use these adapters when the size of a meter face is too small for the DIN cutout in a panel or enclosure.

Preventative Maintenance and Inspection Indicators

Mount these indicators to your equipment, and their bright LED will catch your attention when it’s time for maintenance or inspection.

Dimensional Measuring

Distance-Measuring Wheels

Roll these wheels along a surface to measure distances up to 99,999 feet.

Pedometers

Record steps or miles while you walk or run.

Remote Readout Flat-Material Length Measurers

Send sheet, roll, and strip measurements from this measurer to a remote Voltage Actuated Counter (sold separately).

Digital Position Indicators

More customizable than standard indicators, these digital indicators have programmable features that help you adapt them to your application.

Timing

Multifunction Smartwatches

Keep your phone in your pocket and your hands free—these smartwatches perform a variety of functions on your wrist.

Timers

Count down to zero or count up to as much as 24 hours with these digital timers.

Metal- and X-Ray-Detectable Stopwatches

Track time on food processing lines while reducing the risk of contaminating the food. To help you comply with Hazard Analysis and Critical Control Point (HACCP) programs, these plastic stopwatches contain metal and chemical additives that will set off metal detectors and show up on X-ray machines.

Stopwatches

Quickly view starts and finishes on a digital screen.

Digital Safety Scoreboard Signs

These scoreboards automatically count days.

Combination Wristwatch/Weather Monitors

Monitor your environment when working outdoors. These wristwatches display time, date, temperature, barometric pressure, and altitude.

Totalizers

Totalizers for Oil

Designed for use with light oils.

Totalizers for Grease

Install this totalizer on your grease gun to accurately measure grease dispensing and reduce waste.

Totalizers for Water

Measure the total flow volume of water in your system.

Totalizers for Fuel

Measure the total flow volume of gasoline, diesel fuel, and kerosene.

Washdown Totalizers for Water

The enclosure meets NEMA 4X to protect these totalizers from dust, washdowns, and corrosive liquids.

Remote-Reading Totalizers for Drinking Water

With a display that can be mounted up to 1,000 feet from the body, these totalizers are often installed in hard-to-access areas and remote locations.

Flowmeter/Totalizers

Flanged Flowmeter/Totalizers for Water

For secure connections in large pipelines with high flow rates, these flowmeter/totalizers have flanged ends.

Washdown Flowmeter/Totalizers for Water

To protect against dust, washdowns, and corrosion, these flowmeter/totalizers have an enclosure that meets NEMA 4X.

Remote-Reading Socket-Connect
Flowmeter/Totalizers for Water

With a display that can be placed up to 25 feet from the sensor, these flowmeter/totalizers are often used in hard-to-access areas.

Socket-Connect Flowmeter/Totalizers for Water

Bond the unthreaded connections to PVC pipe with PVC cement and primer.

Flowmeter/Totalizers for Water

Determine the flow rate and total flow volume of water with the same meter.

Flowmeter/Totalizers for Oil and Fuel

Use with oil, gasoline, diesel fuel, and kerosene.

Flowmeter/Totalizers for Water and Chemicals

To withstand water and a variety of caustic chemicals, these flowmeter/totalizers have a corrosion-resistant 316 stainless steel body.

Faucet Timers for Handwashing

Attach these timers to faucets to make sure you’re following handwashing protocols that help prevent the spread of illness.

Handheld GPS Navigators

Navigate on foot with real-time GPS data.

Single Function Chemisty Meters

Remote-Reading pH Meters

The remote sensor with a cable lets you take pH readings in hard-to-reach areas.

Remote-Reading pH Meters with PC Output

Transmit pH readings to a PC for analysis. These meters have a sensor on a 6-ft. cable for taking remote readings of water and other clean liquids.

Water-Resistant Dissolved Oxygen Meters

Check the oxygen levels of water and other clean liquids in harsh field conditions. This meter has a housing that meets IP67 for complete resistance to dust and protection from temporary submersion.

Water-Resistant ORP Meters

Since this oxidation reduction potential (ORP) meter has a housing that meets IP67 for complete resistance to dust and protection from temporary submersion, it’s often used to determine a solution’s ability to break down contaminants in harsh field conditions.

pH Meters

More precise than test strips, this meter is often used to measure the pH of dirty liquids in agricultural systems, aquaculture tanks, and printing fountains.

Water-Resistant TDS Meters

Since these meters float and have a housing that meets IP67, they won’t be damaged by temporary submersion and have complete resistance to dust. They detect total dissolved solids (TDS) in water, hydroponic solutions, and other clean liquids to determine contaminant levels.

ORP Meters

Measure a solution’s oxidation reduction potential (ORP) to determine its ability to break down contaminants.

Water-Resistant pH Meters

Check pH in harsh field conditions. These floating meters that have a housing that meets IP67 for complete resistance to dust and protection from temporary submersion.

Water-Resistant Conductivity Meters

Don’t worry about dropping this meter in your tank when checking electrical conductivity—it floats and has a housing that meets IP67 for complete resistance to dust and protection from temporary submersion.

Sanitary Conductivity Sensors

Test for chemicals, cleaners, and other substances in your sanitary line by measuring how well the liquid conducts electricity.

Multifunction Chemistry Meters

Easy-Read Bench-Top Multifunction Chemistry Meters

Don’t strain your eyes reading a scale—these bench-top meters indicate exact results on the digital display.

Water-Resistant Multifunction Chemistry Meters

Test different water-chemistry measurements in dirty, wet conditions.

Air Particle Counters

Check your indoor air quality (IAQ) by measuring the amount of particles present. These counters are often used to monitor dust levels in workshops, check for particles in classrooms, and measure filter efficiency in HVAC systems.