Interval Timers | McMaster-Carr

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Overall Timing

0.05 sec. to 1,800 sec.

0.05 sec. to 999 min.

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C-UL Recognized Component

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674 Products

Electrical

Timer Relays

Turn machinery on or off after receiving an electrical signal that starts the timer

198 products

Timer Switches

Automatically turn electrical equipment on or off after a set interval

99 products

Programmable Logic Controllers

Program complex automation jobs by combining the functionality of a relay, timer relay, and switch

8 products

Programmable Logic Controller Expansion Modules

Increase the number of inputs and outputs for your PLC

12 products

Edge Controllers

Use in automated systems to monitor sensors, control actuators, and support wireless connections

1 product

Programmable Logic Controller End Plates

Pair with PLCs to tell your processor there are no more inputs or outputs; protect PLCs from debris

1 product

Programmable Logic Controller Input and Output Modules

Connect switches, transmitters, and actuators to your PLC for complex automation jobs

59 products

Programmable Logic Controller Communication Modules

Connect and communicate simultaneously with multiple automation devices

12 products

IO Link Connectors

Remotely view measurements, adjust settings, and identify errors in sensors and actuators

10 products

IO Link Programmers

Configure your IO Link devices without a PC, outlet, or separate software

1 product

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

5 products

Measuring and Inspecting

Timers

Count up or down to measure a period of time

29 products

Inspection Indicators

Mount to your equipment for a signal when it's time for maintenance or inspection

4 products

Stopwatches

Track time or record an event from start to finish

10 products

Hour Meters

Display running time on a machine so you can schedule preventative maintenance

48 products

Counters

Record and display the number of times events or processes occur

100 products

Tachometers

Measure the speed of rotating parts on machines such as shafts, gears, and belts

1 product

Facility and Grounds Maintenance

Faucet Timers

Count down to encourage effective handwashing that helps prevent the spread of illness

1 product

Lawn Sprinkler Timers

Program to water lawns and gardens on a set schedule

2 products

Communication

Time Cards

Punch or stamp with a time clock to record attendance and working hours

11 products

Time Clocks

Punch into work by recording day and time

5 products

Scheduling Timers

Program to signal routine events throughout the week, such as lunch and breaks

1 product

Checkpoint Recorders

Ensure security staff make their rounds with electronic check-ins; also called watchmen's clocks

1 product