McMaster-Carr logo
    Filter by
    Power Source
    Number of Displays
    Mounting Location
    Timing Functions
    Timer Resolution
    Battery Size
    Maximum Alarm Duration
    Minimum Temperature
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Maximum Timer Duration
    Diameter
    Attribute Image
    Maximum Number of Events
    DFARS Specialty Metals
    Case Color
    Electrical Connection
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Resettable
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    33 Products

    Digital Timers

    Image of Product. Front orientation. Timers. Digital Timers, Style M.

    Style M

    Memory Function—Timers with a memory function automatically return the display to the last programmed time. Good for timing repetitive intervals.
    IP65 Enclosure Rating—IP65-rated timers protect against dust and low-pressure washdowns. They also resist impacts up to 4 ft.
    Case
    Style
    Timing Functions
    Max. No.
    of Events
    Max. Timer
    Duration, hr.
    Max. Alarm
    Duration, min.
    Timer Resolution,
    sec.
    Ht.
    Wd.
    Dp.
    Material
    Color
    Batteries
    Included
    Features
    Enclosure
    Rating
    Each
    MCount Up
    Count Down
    124515 1/4"7 3/4"1"PlasticBlackYesAlarm
    Built-In Stand
    Memory Function
    IP65
    12595T23000000
     

    Switch-Contact-Actuated Hour Meters

    Image of Product. Front orientation. Hour Meters. Switch-Contact-Actuated Hour Meters, Screw On.

    Screw On

    Image of Product. Front orientation. Hour Meters. Switch-Contact-Actuated Hour Meters, Clip On.

    Clip On

    No need for a separate power source—these hour meters are powered by internal batteries that last more than 10 years. Often used where power sources aren’t easily accessible, they work well in remote monitoring systems, industrial equipment, and machinery. Wire the hour meter to a relay or switch on your machine so it can receive signals when the machine is running. The total number of hours is shown on the display. Press a button on the meter to reset the time to zero or connect it to a switch or button to reset it from a distance.
    Clip On—Clip-on hour meters can be programmed to flash an icon of your choosing after your machine has run for a set number of hours. Similar to the lights on your car’s dashboard, the icons signal maintenance for your oil, oil filter, service, and more.
    IP65 Enclosure Rating, NEMA 4X Enclosure Rating, and NEMA 12 Enclosure Rating—Screw on hour meters are IP65, NEMA 4X, and NEMA 12 rated, so they’re protected from dust, water, and splashing oil and coolant.
    UL Recognized Component, C-UL Recognized Component, and CE Marked—These meters are UL recognized, C-UL recognized, and CE marked, so they meet American, Canadian, and European safety standards.
    Gaskets—Mount them with a gasket (sold separately) to protect against dust, water, and splashing oil and coolant and so they’ll meet NEMA 4/4X, NEMA 12, and IP66 ratings.
    Hour Meters
    Gaskets
    For Panel
    Cutout
    Overall
    Resettable
    Counting
    Direction
    No. of
    Digits
    Wd.
    Ht.
    Ht.
    Wd.
    Dp.
    Features
    Enclosure Rating
    Certification
    Each
    Each
    Screw On
     
    Screw-Terminal Wire Connection
    YesUp and Down81.8"0.9"1"1.9"2.1"Battery-Powered Display, Manual Reset Button, Remote ResetIP65, NEMA 4X, NEMA 12
    UL Recognized Component, C-UL Recognized Component, CE Marked
    17015T12000000———0
     
    Clip On
     
    Screw-Terminal Wire Connection
    YesUp81.7"0.8"1.1"2"1.5"Battery-Powered Display, Indicator Icons, Manual Reset Button, Remote ResetIP66
    UL Recognized Component, C-UL Recognized Component, CE Marked
    7243N11000008672T4600000
     

    Preventative Maintenance and Inspection Indicators

    Image of ProductInUse. Front orientation. Inspection Indicators. Preventative Maintenance and Inspection Indicators.
    Image of Product. Front orientation. Inspection Indicators. 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. They’re commonly used to keep track of maintenance on production lines and HVAC systems, or paired with inspection tags on fire extinguishers and eye wash stations.
    When first set, these indicators flash a dark green and then a light green color every two minutes. As a scheduled inspection approaches, they flash a yellow light every 10 seconds. And when an inspection is past due, they blink red every two seconds. Reset indicators to start the countdown again. They meet IP65, so they seal out dust and low-pressure washdowns.
    Timing
    Cycle, day
    Resettable
    Dia.
    Ht.
    Thk.
    Batteries
    Included
    Mounting Fasteners
    Included
    Enclosure
    Rating
    Each
    Screw On, Hanging Mount, Tie On
    7Yes2 1/2"3 5/8"7/8"YesYesIP65
    3545N1000000
    30Yes2 1/2"3 5/8"7/8"YesYesIP65
    3545N200000
    180Yes2 1/2"3 5/8"7/8"YesYesIP65
    3545N400000
    365Yes2 1/2"3 5/8"7/8"YesYesIP65
    3545N500000
     

    Panel-Mount Electrically Actuated Hour Meters

    Image of Product. Front orientation. Hour Meters. Panel-Mount Electrically Actuated Hour Meters, Screw On, Style G.

    Screw On

    Style G

    Display running time on a machine so you can schedule preventative maintenance.
    Not Resettable—Non-resettable meters prevent tampering and accidental loss of data.
    NEMA 4X Enclosure Rating—Meters that are rated NEMA 4X are protected from dust and washdowns and can be used outdoors.
    Overall
    Style
    Resettable
    Counting
    Direction
    No. of
    Digits
    For Panel
    Cutout Dia.
    Dp.
    Dia.
    Operating
    Voltage
    Enclosure
    Rating
    Each
    Screw On
     
    0.25" Quick-Disconnect Terminals
    GNoUp62"1.3"2.8"24V ACIP65, NEMA 4X
    1672T85000000
    GNoUp62"1.3"2.8"120V ACIP65, NEMA 4X
    1672T8400000
    GNoUp62"1.3"2.8"230V ACIP65, NEMA 4X
    1672T8900000
     

    IO Link Connectors

    Image of System. Components Sold Separately. Front orientation. Contains Annotated. IO Link Connectors.

    Components Sold Separately

    Create a system of sensors and actuators that you can remotely update, view measurements from, and receive error messages in real time. IO Link systems minimize downtime by locating issues such as cut cables or dirty sensors quickly. They send only digital signals to your PLC, regardless of whether your sensors and actuators send digital or analog signals. Because these systems send digital signals, they’re more reliable and less prone to data error and signal loss than analog signals. It also means you don't have to use expensive shielded cables since they resist EMI.
    When retrofitting an existing system, you'll need to make sure your PLC can incorporate IO Link. Check with your PLC manufacturer—most have hardware that allows you to upgrade your PLC to run IO Link.
    Note: Sockets may have extra holes on their face that are not used.
    Controllers
    Image of Product. Front orientation. IO Link Connectors. Controllers, Surface Mount.

    Surface

    Mount

    Controllers communicate between your sensors and actuators and your PLC. They are required. Setting memory automatically stores your settings and restores them once your device is back online. This eliminates needing to program a device again when you replace or fix it.
    Surface Mount—Surface mount controllers let you mount controllers on equipment such as tanks and conveyors. By mounting them on your equipment, you save space in your control cabinet. They use M12 connectors.
    IP66 Enclosure Rating—IP66 rated components withstand washdowns.
    IP67 Enclosure Rating—IP67 rated components can be temporarily submerged in water.
    IP69K Enclosure Rating—IP69K rated components hold up to high-pressure and high-temperature washdowns.
    Enclosure Rating—IP rated components block out dust and withstand some water, so they do not require an enclosure. Ports that are unused must be capped to maintain their rating.
    Input
    Output
    Communication
    Protocol
    No. of Device
    Ports
    Total No. of
    M12 Connections
    Type
    Signal
    Voltage,
    V DC
    No.
    of
    Type
    Signal
    Voltage,
    V DC
    Current,
    mA
    No.
    of
    Operating
    Voltage, V DC
    Certification
    Each
    Surface Mount
     
    IP66, IP67
    IO Link, Ethernet/IP47DigitalPNP0 to 308DigitalPNP300.3 amp420 to 30UL Listed, C-UL Listed, CE Marked
    7585N130000000
    IO Link, Ethernet/IP811DigitalPNP0 to 3016DigitalPNP300.3 amp820 to 30UL Listed, C-UL Listed, CE Marked
    7585N14000000
    IO Link, Profinet47DigitalPNP0 to 308DigitalPNP300.3 amp420 to 30UL Listed, C-UL Listed, CE Marked
    7585N11000000
    IO Link, Profinet811DigitalPNP0 to 3016DigitalPNP300.3 amp820 to 30UL Listed, C-UL Listed, CE Marked
    7585N12000000
     
    IP66, IP67, IP69K
    IO Link, Ethernet/IP47DigitalPNP0 to 308DigitalPNP300.3 amp420 to 30UL Listed, C-UL Listed, CE Marked
    7585N19000000
    IO Link, Ethernet/IP811DigitalPNP0 to 3016DigitalPNP300.3 amp820 to 30UL Listed, C-UL Listed, CE Marked
    7585N21000000
    IO Link, Profinet47DigitalPNP0 to 308DigitalPNP300.3 amp420 to 30UL Listed, C-UL Listed, CE Marked
    7585N17000000
    IO Link, Profinet811DigitalPNP0 to 3016DigitalPNP300.3 amp820 to 30UL Listed, C-UL Listed, CE Marked
    7585N18000000
     
    Caps
    Expansion Modules
    Image of Product. Front orientation. IO Link Connectors. Expansion Modules.
    Expansion modules increase the number of inputs and outputs in your IO Link system, so you can add more sensors and actuators to your network. Connect multiple devices to each expansion module using M12 connectors, without needing to wire your devices inside a control cabinet. They transmit signals from multiple devices with a single cord. Expansion modules are optional, but when used, they must connect to a controller. Mount them on your equipment to save space in your control cabinet.
    IP65 Enclosure Rating—IP65 rated components can be rinsed.
    IP67 Enclosure Rating—IP67 rated components can be temporarily submerged in water.
    IP69K Enclosure Rating—IP69K rated components hold up to high-pressure and high-temperature washdowns.
    Enclosure Rating—IP rated components block out dust and withstand some water, so they do not require an enclosure. Ports that are unused must be capped to maintain their rating.
    Input
    Output
    Expansion Module
    Type
    Communication
    Protocol
    No. of Device
    Ports
    Total No. of
    M12 Connections
    Type
    Signal
    Voltage,
    V DC
    No.
    of
    Type
    Signal
    Current,
    mA
    No.
    of
    Operating
    Voltage, V DC
    Certification
    Each
    Surface Mount
     
    IP65, IP67
    InputIO Link67DigitalPNP16 to 301218 to 30UL Listed, C-UL Listed, CE Marked
    7603N110000000
    InputIO Link1011DigitalPNP16 to 302018 to 30UL Listed, C-UL Listed, CE Marked
    7603N12000000
    Input, OutputIO Link810DigitalPNP18 to 3016DigitalPNP3.6 amp1618 to 30CE Marked
    7603N15000000
    OutputIO Link68DigitalPNP3.6 amp1218 to 30UL Listed, C-UL Listed, CE Marked
    7603N13000000
    OutputIO Link1012DigitalPNP3.6 amp2018 to 30UL Listed, C-UL Listed, CE Marked
    7603N14000000
     
    IP65, IP67, IP69K
    InputIO Link67DigitalPNP16 to 301218 to 30UL Listed, C-UL Listed, CE Marked
    7603N16000000
    InputIO Link1011DigitalPNP16 to 302018 to 30UL Listed, C-UL Listed, CE Marked
    7603N17000000
    Input, OutputIO Link810DigitalPNP18 to 3016DigitalPNP3.6 amp1618 to 30CE Marked
    7603N21000000
    OutputIO Link68DigitalPNP3.6 amp1218 to 30UL Listed, C-UL Listed, CE Marked
    7603N18000000
    OutputIO Link1012DigitalPNP3.6 amp2018 to 30UL Listed, C-UL Listed, CE Marked
    7603N19000000
     
    Caps
    back to top