Linear Motion Position-Measuring Transmitters
 Style 1 |  Style 2 |  Style 3 |  Style 4 |
 Styles 1-4 |  4-Pole Micro M12 Plug |  5-Pole Micro M12 Plug |
Track the position of hydraulic cylinders and other components that move in a straight line. Like a tape measure, these transmitters have a wire that extends to measure how far components have traveled from a set point. Because of the wire, they're also known as string pots—short for string potentiometers. They convert measurements to an electrical signal, which can then be used to trigger automated actions in your process.
All are IP rated for some protection from dust. Transmitters rated IP67 seal out water when briefly submersed.
Transmitters with a plug are quicker to connect and disconnect than those with wire leads. Plug them into a cable with a socket (sold separately).
Transmitters | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mount. Holes | Cables with Socket | |||||||||||||||||
| Stroke Lg. | Accuracy Range | Repeatability Range | Max. Input Voltage | Input Resistance, kOhm | Signal Output | Housing Material | Environmental Rating | Wire Lead Lg. | Eyelet ID | Lg. | Wd. | Ht. | Ctr.-to-Ctr. | Dia. | No. of | Each | Each | ||
Style 1 | |||||||||||||||||||
With Wire Leads | |||||||||||||||||||
| 4 3/4" | -1% to +1% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 0-28.2V AC 0-28.2V DC | Plastic | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 0000000 | 000000 | 00 |
| 12 1/2" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 0-28.2V AC 0-28.2V DC | Plastic | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 | 000000 | 00 |
| 25" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 0-28.2V AC 0-28.2V DC | Plastic | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 | 000000 | 00 |
| 50" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 0-28.2V AC 0-28.2V DC | Plastic | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 | 000000 | 00 |
Style 2 | |||||||||||||||||||
With Wire Leads | |||||||||||||||||||
| 120" | -0.35% to +0.35% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 0-28.2V AC 0-28.2V DC | Plastic | IP67 | 40" | 0.191" | 2.48" | 5.17" | 5.09" | (A) 4 3/4" (B) 4.62" (C) 2.2" | 7/32" 3/16" 3/16" | 6 | 000000 | 000000 | 000000 | 00 |
With 4-Pole Micro M12 Plug | |||||||||||||||||||
| 120" | -0.35% to +0.35% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 0-28.2V AC 0-28.2V DC | Plastic | IP67 | __ | 0.191" | 2.48" | 5.17" | 5.09" | (A) 4 3/4" (B) 4.62" (C) 2.2" | 7/32" 3/16" 3/16" | 6 | 00000000 | 000000 | 0000000 | 000000 |
Style 3 | |||||||||||||||||||
With 5-Pole Micro M12 Plug | |||||||||||||||||||
| 75" | -0.02% to +0.02% | -0.006% to +0.006% | 32V DC | 4.8 | 4-20mA | Steel | IP64 | __ | 0.197" | 4.11" | 3.11" | 3.27" | (A) 0.98" | 7/32" | 2 | 00000000 | 000000 | 0000000 | 00000 |
Style 4 | |||||||||||||||||||
With 5-Pole Micro M12 Plug | |||||||||||||||||||
| 118" | -0.012% to +0.012% | -0.005% to +0.005% | 32V DC | 4.8 | 4-20mA | Steel | IP64 | __ | 0.083" | 3.61" | 3.07" | 3.58" | (A) 2.32" (B) 2.44" | 3/16" 3/16" | 8 | 00000000 | 000000 | 0000000 | 00000 |
Linear Motion Potentiometers
Pair these potentiometers with a controller to monitor the position of moving parts or send instructions to an electrical system. They have a rod that slides back and forth against an internal resistor, which increases or decreases the voltage flowing out to your controller. To monitor the position of a moving part, such as a robotic component, connect it to the rod. As the part moves, it pushes the rod back and forth, which allows the controller to observe and report the part’s exact position. To use these potentiometers as part of a controls system, connect them to a volume slider or other manual control. When you move the slider, the controller converts its position into instructions for electrical equipment, such as adjusting volume levels. These potentiometers are also called variable output switches.
Lg. | Rod | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke | Retracted | Extended | Wattage | Wd. | Ht. | Dia. | Thread Size | Material | Housing Material | Wire Connection Type | Environmental Rating | Each | |
5 kilohms Max. Resistance | |||||||||||||
| 5/32" | 1.59" | 1.74" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 000000 |
| 1/4" | 1.59" | 1.84" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
| 1/2" | 2.22" | 2.72" | 0.25 W @ 300 V DC | 9/32" | 11/32" | 3/32" | 2-56 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
10 kilohms Max. Resistance | |||||||||||||
| 5/32" | 1.59" | 1.74" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
| 1/4" | 1.59" | 1.84" | 0.125 W @ 200 V DC | 1/4" | 9/32" | 1/16" | 0-80 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
| 1/2" | 2.22" | 2.72" | 0.25 W @ 300 V DC | 9/32" | 11/32" | 3/32" | 2-56 | 303 Stainless Steel | Plastic | Wire Leads | IP45 | 0000000 | 00000 |
Magnetic Position-Measuring Transmitters
Nano
M8 Plug
Micro
M12 Plug
Continuously monitor your air cylinder rod’s position and turn the cylinder on and off with a single component. These transmitters send positioning data to computers, programmable logic controllers (PLCs), and human-machine interfaces (HMIs). They're often integrated into automated systems for tasks such as timing when certain steps of your process should take place and verifying dimensions for quality control. Rated IP67, these transmitters withstand temporary submersion.
Press the buttons on the switch to toggle between voltage and current outputs. These transmitters have a plug that connects to cables with a socket (not included) so you can quickly connect and disconnect the switch.
Configurable Digital Output | Configurable Analog Output | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensing Distance, mm | Input Voltage | No. of | Communication Protocol | Signal Type | No. of | Signal | Resolution, mm | Repeatability, mm | Lg. | Wd. | Ht. | Housing Material | Color | Each | |
With 4-Pole Nano M8 Plug | |||||||||||||||
| 0-25 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 1 9/16" | 11/16" | 1/2" | Plastic | White | 0000000 | 0000000 |
| 0-50 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 2 9/16" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
| 0-100 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 4 1/2" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
| 0-200 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 8 7/16" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
With 4-Pole Micro M12 Plug | |||||||||||||||
| 0-25 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 1 9/16" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
| 0-50 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 2 9/16" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
| 0-100 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 4 1/2" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
| 0-200 | 15-30V DC | 1 | IO Link | PNP, NPN | 1 | 0-10V DC, 4-20mA | 0.05 | ±0.1 | 8 7/16" | 11/16" | 1/2" | Plastic | White | 0000000 | 000000 |
Photoelectric Distance-Measuring Transmitters
Nano
M8 Plug
Micro
M12 Plug
With a single device, continuously monitor the distance of moving items and turn equipment on and off based on their position. These transmitters use a light beam to detect subtle changes at high speeds, such as dents in cans on a canning line. They also have a time delay function, so you can keep circuits on or off for a set time after they sense an object. These transmitters use IO link to send readings to a programmable logic controller (PLC), a human-machine interface (HMI), or a computer.
All are IP rated for protection from dust and temporary submersion. Those rated IP69K also withstand high-pressure washdowns.
Transmitters with a plug connect to cables with a socket (sold separately), so you can quickly connect and disconnect the transmitter. Those with an OLED display show the measured distance in real time, so you can check readings at the transmitter. They connect to a smartphone via Bluetooth, so you can use an app to configure them remotely. They’re often used in restricted or hard to reach areas, since you can set the trigger distance and save common settings without access to the transmitter.
Transmitters | Cables with Socket | Mounting Brackets | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensing Distance, mm | Input Voltage | Current Output | Signal Output Type | Communication Protocol | Resolution, mm | Repeatability, mm | Time Delay, ms | Lg. | Wd. | Ht. | Housing Material | Temp. Range, °F | Data Connection Type | Operating System Compatibility | Specifications Met | Cannot Be Sold To | Each | Each | Each | |||
With Wire Leads | ||||||||||||||||||||||
Direct Sensing Transmitter with Visible Laser Light Beam (IP67, IP69K) | ||||||||||||||||||||||
| 35-150 | 10-30V DC | 100mA | PNP | IO Link | 0.1 | ±1 | 1.5, 10, 50 | 1 3/16" | 5/8" | 1 15/16" | Stainless Steel | 15° to 120° | __ | __ | UL Listed, CE Marked | __ | 0000000 | 0000000 | 000000 | 00 | 000000000 | 000000 |
| 35-500 | 10-30V DC | 100mA | PNP | IO Link | 1 | ±9 | 1.5, 10, 50 | 1 3/16" | 5/8" | 1 15/16" | Stainless Steel | 15° to 120° | __ | __ | UL Listed, CE Marked | __ | 0000000 | 000000 | 000000 | 00 | 000000000 | 00000 |
With 4-Pole Nano M8 Plug | ||||||||||||||||||||||
Direct Sensing Transmitter with Visible Laser Light Beam (IP67, IP69K) | ||||||||||||||||||||||
| 35-150 | 10-30V DC | 100mA | PNP | IO Link | 0.1 | ±1 | 1.5, 10, 50 | 1 3/16" | 5/8" | 1 15/16" | Stainless Steel | 15° to 120° | __ | __ | UL Listed, CE Marked | __ | 0000000 | 000000 | 0000000 | 000000 | 000000000 | 00000 |
| 35-500 | 10-30V DC | 100mA | PNP | IO Link | 1 | ±9 | 1.5, 10, 50 | 1 3/16" | 5/8" | 1 15/16" | Stainless Steel | 15° to 120° | __ | __ | UL Listed, CE Marked | __ | 0000000 | 000000 | 0000000 | 00000 | 000000000 | 00000 |
With 5-Pole Micro M12 Plug | ||||||||||||||||||||||
Direct Sensing Transmitter with Visible Laser Light Beam (IP68) | ||||||||||||||||||||||
| 50-5,000 | 18-30V DC | 100mA | PNP | IO Link | 3 | ±3 | 5, 15, 29 | 2 7/16" | 13/16" | 1 15/16" | ABS Plastic | -40° to 120° | __ | __ | UL-Listed, C-UL Certified, CE Marked | __ | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
| 50-10,000 | 18-30V DC | 100mA | PNP | IO Link | 3 | ±3 | 5, 15, 29 | 2 7/16" | 13/16" | 1 15/16" | ABS Plastic | -40° to 120° | __ | __ | UL-Listed, C-UL Certified, CE Marked | __ | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
With 5-Pole Micro M12 Plug and OLED Display | ||||||||||||||||||||||
Direct Sensing Transmitter with Visible Laser Light Beam (IP68) | ||||||||||||||||||||||
| 50-10,000 | 18-30V DC | 100mA | PNP | IO Link | 3 | ±3 | 5, 15, 29 | 2 7/16" | 13/16" | 2 1/8" | ABS Plastic | -40° to 120° | Bluetooth | Android 6.0 or Later, iOS 14 or Later | UL-Listed, C-UL Certified, CE Marked | Canada | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
Tie Rod-Mount Proximity Switches for Sensor-Ready Hydraulic Cylinders
Send an electronic signal to your system when the piston reaches a certain location. Mount one or two of these sensors on a cylinder tie rod; they must be flush against the cylinder tube. An LED indicator shows the piston location. These switches are PNP (also called "sourcing") output, so they send energy onwards. PNP output is most common in solid-state relays and PLCs used in the United States and Europe.
For Cylinder | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer (Series) | Body Material | For Bore Dia. | Input Voltage | Current Output, mA | Housing Material | Environment | Environmental Rating | Cable Lead Lg., ft. | Number of Wire Leads | Wire Lead Color | Includes | Each | |
| Miller (2H) | Steel | 1 1/2"-4" | 10V DC-30V DC | 100 | Plastic | Washdown | IP67 | 16 | 4 | Black, Blue, Brown, White | Mounting Bracket | 000000 | 0000000 |