Use these transmitters to measure the levels of corrosive, dirty, or sticky liquids without coming into contact with them. They’ll continuously send measurements, so you can monitor status and manage components in your system. Mount at the top of your tank. There should be no tank walls, agitators, or other objects in the path of the transmitter.

Ultrasonic transmitters use high-frequency sound waves and are often used to measure water, wastewater, chemicals, and oil but won’t work on vapors, foam, and other media that’s difficult to measure. The included fob allows you to connect your transmitter to your computer, where you'll download software that guides you through the setup process to make sure you get accurate readings. Ultrasonic transmitters with a button interface can be set up and calibrated without the fob. Transmitters with a switch can also signal your controller to turn components on or off when they reach a set level.

NEMA 6P rated transmitters protect against dust, weather, washdowns, corrosion, and submersion. IP68 rated transmitters seal out dust and water from temporary submersion.

For technical drawings and 3-D models, click on a part number.

Use high-frequency sound waves to detect chemical level. This switch has three relays that can be programmed for multiple set points. Use it to activate several alarms or to automate tank filling and emptying. It’s rated NEMA 4X for protection from corrosion and washdowns.

For technical drawings and 3-D models, click on a part number.

Stream distance readings to your development board in real time. Set up these modules near your robotics, production lines, or liquid monitoring systems to capture changing positioning.

Ultrasonic modules use sound pulses to measure distance. They can be used in low lighting. However, they may not be accurate on soft, small, or oddly shaped objects that won’t reflect sound waves properly.

Detect objects and liquid or material levels to set off actions in your system—regardless of size, shape, or surface finish. These switches send out high-frequency sound waves that target small areas, so the surface and structure of your object won't affect results like photoelectric sensors, which sense using light. This makes them great for materials with uneven surfaces, such as granules and powder. They also sense objects when obscured by smoke, dust, debris, or water, but they don't work as well where there's wind, since it could disrupt their sound waves. Once an object is detected or a set level is reached, the digital output sends a signal to your controller to turn components in your system on or off. Use their plug to quickly connect and disconnect to cables with a socket (sold separately). UL listed, C-UL listed, and CE marked, all meet American, Canadian, and European safety standards.

Switches with two outputs let you set a minimum level on one output and a maximum on the other—for example, you can keep liquid levels constant by turning on a pump when the level drops too low and turning off the pump when it reaches the maximum.

Switches with IO Link connect to a programmable logic controller (PLC), so you can change settings and receive error messages remotely. You need an IO-Link controller (not included) to connect.

Switches with PNP/NPN signal output automatically produce the signal you need based on the connected device.

90° elbow switches are compact to fit in tight spaces. They’re best for conveyors.

Rated IP67, all of these switches seal out dust and water if briefly submersed. NEMA 6 rated switches also stand up to weather and washdowns.

Also known as occupancy sensors, these controls turn lights on when movement is detected and off when an area is unoccupied. All have a time delay to turn lights off after a set time.

Infrared/ultrasonic sensors minimize false activation by detecting changes in heat sources and motion. They can be set so that only one or both detection methods are required to activate and hold lights on.

Ultrasonic sensors detect movement and don’t require a direct view of the occupants.

For technical drawings and 3-D models, click on a part number.

Fine-tune motion-sensing light controls from your smartphone or tablet. Mounting on the ceiling gives these light controls a clearer view of the room than wall-mount sensors, so they detect motion over a larger area. They connect to a free downloadable app using Bluetooth. Use the app to adjust the amount of time lights stay on after people leave, set schedules, or override the sensor so lights are always on. Also known as occupancy sensors, they turn lights on when they sense movement and off after people leave.

Controls with infrared/ultrasonic sensors have two detection methods to minimize false activation: infrared to sense heat sources and ultrasonic to sense motion. Use the app to adjust whether both or just one of these triggers will switch the lights.

Controls with a dimmer let you adjust the brightness of your lights.

For technical drawings and 3-D models, click on a part number.

Also known as occupancy sensors, these controls turn lights on when movement is detected and off when an area is unoccupied. The infrared/ultrasonic sensors minimize false activation by detecting heat and motion. They can be set so that only one or both detection methods are required to activate and hold lights on. All have a time delay to turn lights off after a set time. The mounting bracket swivels 90° so that the control can be mounted on a wall or ceiling.

Power controllers (sold separately) are required to switch a 120- or 277-volt AC lighting circuit. They have a relay that switches a maximum 20 amp load.

For technical drawings and 3-D models, click on a part number.

Also known as occupancy sensors, these controls turn lights on when movement is detected and off when an area is empty. They fit standard wall plates. All have a manual time delay that will turn lights off after a set amount of inactivity.

Dimming light controls adjust the light’s brightness.

Controls with infrared/ultrasonic sensors detect changes in heat as well as motion to minimize false activations. You can set them to use one or both detection methods to activate and keep lights on.

Controls with an automatic time delay can turn lights off automatically based on usage patterns.

For light controls with 24V DC input voltage, you'll need a power controller to switch a 120- or 277-volt AC lighting circuit. Power controllers have a relay that switches a maximum 20-amp load.

Control the brightness of lights from your smartphone. Using a Bluetooth-connected app on your phone or tablet, you can schedule when lights turn on, adjust their brightness levels, and set their movement sensitivity. Also known as occupancy sensors, these dimmers turn lights on when motion is detected and off when people are away. You can override the motion sensor function with a tap on the app to manually switch or dim lights. They fit in standard wall plates.

Dimmers with infrared/ultrasonic sensors minimize false activation by detecting changes in heat sources and motion. They can be set so that only one or both detection methods are required to activate and hold lights on.

For light controls with DC input voltage, you'll need a power controller to switch a 120V or 277V AC lighting circuit. Power controllers have a relay that switches a maximum 20-amp load.

For technical drawings and 3-D models, click on a part number.

Protect sensors from damage and prevent tampering—these guards won’t trip or block the sensors.

Measure the thickness of material such as metal and plastic. The ultrasonic probe provides highly accurate readings. This gauge comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It also includes a USB cord for connecting to your PC. Use the included ultrasonic gel for maximum surface contact.

Use calibration blocks to calibrate your thickness gauge. All blocks have a serial number and come with a calibration certificate traceable to NIST.

Measure the thickness of painted metal without removing the coating. The ultrasonic probe provides highly accurate readings. This gauge comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It also includes a USB cord for connecting to your PC. Use the included ultrasonic gel for maximum surface contact.

Use calibration blocks to calibrate your thickness gauge. All blocks have a serial number and come with a calibration certificate traceable to NIST.

This detector converts ultrasonic waves to an audible sound so you can find leaks. Unlike typical leak detectors, this unit doesn’t rely only on the presence of a gas to work, making it suitable for a wider range of applications. In addition to gas leaks, it identifies ultrasonic sound caused by failing solenoids, valves, and bearings.

For systems under 10 psi, use the optional ultrasonic sound generator.

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Locate leaks up to 10 times faster than traditional leak-detecting methods. These detectors use 124 microphones to determine the precise location and size of leaks in compressed air and specific gas systems. The screen displays a high-resolution acoustic image that’s overlaid on a digital live shot of your facility to help you visualize the leak. It also displays analytics related to the leak, such as the rate and the potential cost savings of patching your system. You can capture the on-screen view through photos and video to review later. With a built-in flashlight, they remain accurate even in low-light spaces. Light enough to carry with one hand, you can bring these detectors on the go. A 650 ft. range means you can use them from one end of your facility to another, or to detect in hard-to-reach systems.

Connect the detector to your computer using Wi-Fi or the included USB cable to quickly transfer collected data.

Extend the life of bearings by using these monitors to take the guesswork out of lubrication. Their sensor captures the ultrasonic vibration of grease as it fills your bearing and converts it into sound you can hear. As your bearing draws in the grease, the sound becomes quieter. Even in loud machine shops, you'll be able to track this sound with the noise-cancelling headphones and noise level readings shown on the monitor's screen. When the noise level stops decreasing, the bearing can't absorb any more grease and you should stop pumping grease to avoid over-lubricating your bearing.

The handset guides you through the steps for setting the noise level before applying grease. Use either the curved or flat magnetic mount to attach the sensor to the bearing. The monitor mounts to your grease gun, so you’ll have your hands free for pumping grease.