Transmitters | McMaster-Carr

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5,929 Products

Most Likely Products

Pressure Transmitters

Send pressure readings to controllers and remote displays

371 products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

84 products

Garage Door Opener Transmitters

Send signals to receivers to open and close automatic overhead door openers

8 products

Garage Door Opener Receivers

Wire to automatic overhead door openers to accept signals from remote and keypad transmitters

1 product

All Results

Fluid Handling

Pressure Transmitters

Send pressure readings to controllers and remote displays

371 products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

84 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

28 products

RTD Transmitters

Send temperature readings from RTD probes in containers, tanks, and pipes to switches and PLCs

10 products

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

40 products

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

9 products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

719 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

22 products

Electrical

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

17 products

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

682 products

Photoelectric Switch Reflectors

Pair with sensor switches to reflect light back at them

38 products

Rotary Encoders

Track the distance, direction, and speed of travel of motor shafts, conveyors, and wheels

26 products

IO Link Programmers

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

1 product

Conductivity Controllers

Turn pumps, mixers, and valves on and off based on a solution’s conductivity

2 products

Light Curtains

Immediately cut power to machinery when anything blocks the light beam

11 products

IO Link Connectors

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

28 products

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

24 products

Linear Motion Position-Measuring Transmitters

Measure the position of an object moving in a straight line; also known as string pots

8 products

Sensor Switch Transmitters

Monitor objects, switch equipment on and off, and send data to control systems with a single device

16 products

PLCs

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

9 products

Ethernet Switches

Expand your data network by connecting computers, printers, and servers

68 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

4 products

PLC Input and Output Modules

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

10 products

Limit Switches

Turn equipment on or off when objects touch the actuator; often used for conveyors and bin filling

7 products

Multifunction Chemistry Controllers

Use pH or oxidation reduction potential (ORP) levels to turn equipment on or off

3 products

Magnetic Switches

Actuate when a magnet comes within sensing distance; often used to detect when doors or windows open

1 product

Switch Mounts

Mount sensor switches to panel cutouts, tank walls, or conveyors

2 products

Motor Speed Controls

Manage the speed of AC and DC motors

37 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

207 products

Electrical Cords

Connect equipment and devices to a power supply

2,360 products

Patch Panels

Expand and reconfigure a data network when space inside your enclosure is limited

1 product

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

108 products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

106 products

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

16 products

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

28 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

16 products

Development Board Cords

Connect your development board to components such as sensors and actuators

7 products

Electrical Cord Reels

Neatly store electrical cords for easy access

104 products

Control Cable

Send signals to control machinery and automated systems

40 products

Electrical Connector Caps

Protect data connectors when not in use

6 products

Fiber-Optic Cable

Transmit signals between data centers and workstations in fiber-optic networks

12 products

CAN-Bus Cable

Connect devices in CAN-Bus communication networks

6 products

Fieldbus Cable

Connect devices in Fieldbus communication networks

1 product

DeviceNet Cable

Connect devices in DeviceNet communication networks

4 products

Modbus Cable

Connect devices in Modbus communication networks

2 products

Security Cable

Connect low-current security and intercom systems

53 products

Coaxial Cable

Transmit audio, data, and video signals

8 products

Ethernet Cable

Send data between computers, printers, servers, and switches

20 products

Profinet Cable

Connect devices in Profinet communication networks

2 products

Telephone Cable

Connect telephones and telephone blocks to a wall jack

6 products

Profibus Cable

Connect devices in Profibus communication networks

3 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

60 products

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

5 products

Telephone Wiring Blocks

Keep telephone cable organized and accessible

1 product

Power Over Ethernet Injectors

Power devices such as routers and wireless access points in areas lacking a power outlet

5 products

Building and Machinery Hardware

Garage Door Opener Transmitters

Send signals to receivers to open and close automatic overhead door openers

8 products

Garage Door Opener Receivers

Wire to automatic overhead door openers to accept signals from remote and keypad transmitters

1 product

Measuring and Inspecting

SPC Wireless Transmitters

Send data from measuring tools with SPC output to a wireless receiver

8 products

SPC Wireless Receivers

Connect to a computer to receive measurements from an SPC wireless transmitter

6 products

Cords for Measuring Tool Data Processors

Connect measuring tools with SPC output to a processor for uploading data

23 products

Weather Stations

Measure multiple weather conditions at the same time

3 products

Inertial Measurement Units

Mount to robot arms, cranes, and vehicles to accurately track their movements

1 product

Air Particle Counters

Monitor indoor dust levels and measure filter efficiency in HVAC systems

1 product

Chemistry Meters

Take water-chemistry measurements more precisely than test strips and swabs

23 products

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

2 products

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

16 products

Light Meters

Measure light quality and intensity

9 products

Force Gauges

Test objects to see how much tension and compression force they can bear

1 product

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Communication

Antennas

Mount on the outside of a vehicle for better radio reception

1 product

Telephone Connectors

Replace the plug on your phone cord, or extend your line by connecting cords together

12 products

Telephone Splitters

Connect multiple phone lines to a single telephone jack

4 products

Telephone Cords

Connect telephones to data outlets

9 products

Radios

Everything from walkie talkies to CB and AM/FM radios

14 products

Display Screens

Display text, numbers, symbols, and other information from your electronics

27 products

Computer Monitors

Display information in tough conditions such as on factory floors and outdoor jobsites

9 products

Lighting

Light Switches

Manually turn lights on and off

1 product

Light Switch Sensors

Automatically turn lights on and off when you enter and exit rooms

21 products

Light Transmitters

Light up small and hard-to-reach areas such as the inside of models, prototypes, and circuit boards

18 products

LED Drivers

Send electricity to LED lights and protect them from voltage and current fluctuations

2 products

Light Pipes

Concentrate and direct light from the bulb on a circuit board to a display

16 products

Heating, Ventilation, and Air Conditioning

HVAC Flame Detectors

Replace flame detectors in HVAC equipment such as furnaces, ovens, water heaters, and boilers

1 product

Material Handling

Jacks

Lift, hold, push, and position heavy objects

5 products