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Speed Measurement

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Durham Instruments provides many solutions for your industrial speed measurement requirement. Monitor speed with inductive, magnetic and other technologies for speed feedback in harsh environments such as machine RPM, over-speed, under-speed conditions with various combinations of pulsar discs, pulsar wraps, speed sensors, housings and electronic alarm or transmitter modules. We have the solutions for your unique speed measurement application!

1101 Hall Effect Sensors

1101 Hall Effect Sensors

1101 stainless steel Hall-effect sensors provide digital pulse output signals, and are designed for use with magnetic targets such as 60 Pole Pair Magnet Wheels, Pulser Wraps, or Pulser...

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1102 Magnetoresistive Sensor

1102 Magnetoresistive Sensor

Electro-Sensors 1102 magneto resistive sensors are used with magnetic targets such as 60 pole pair magnet wheels, pulser wraps, or pulser discs to provide digital pulse output...

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198EM Magnet Wheel

198EM Magnet Wheel

The 60 Pole Pair Magnet Wheel is a ferro-magnetic nylon wheel with 120 alternating magnetic poles infused within the material. It is 3-3/4 inches in diameter, with the magnetic surface on the outside circumference of the wheel. The magnets are...

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199SM Magnet Wheel

199SM Magnet Wheel

The 60 Pole Pair Magnet Wheel is a ferro-magnetic nylon wheel with 120 alternating magnetic poles infused within the material. It is 3-3/4 inches in diameter, with the magnetic surface on the outside circumference of the wheel. The magnets are...

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232 Pulser Disc

232 Pulser Disc

Heavy Duty Pulser Discs are constructed of nylon, PVC, aluminum, or stainless steel. Pulser Discs can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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255 Pulser Disc

255 Pulser Disc

Heavy Duty Pulser Discs are constructed of nylon, PVC, aluminum, or stainless steel. Pulser Discs can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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256 Pulser Disc

256 Pulser Disc

Heavy Duty Pulser Discs are constructed of nylon, PVC, aluminum, or stainless steel. Pulser Discs can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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257 Pulser Disc

257 Pulser Disc

Heavy Duty Pulser Discs are constructed of nylon, PVC, aluminum, or stainless steel. Pulser Discs can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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608 Proximity Sensor

608 Proximity Sensor

Electro-Sensors Model 608 is an 8mm unshielded proximity...

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608-1 Proximity Sensor

608-1 Proximity Sensor

Electro-Sensors Model 608-1 is an 8mm shielded proximity...

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612 Proximity Sensor

612 Proximity Sensor

Electro-Sensors Model 612 is a 12mm unshielded proximity...

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612-1 Proximity Sensor

612-1 Proximity Sensor

Electro-Sensors Model 612-1 is a 12mm shielded proximity...

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618 Proximity Sensor

618 Proximity Sensor

Electro-Sensors Model 618 is an 18mm unshielded proximity...

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618-1 Proximity Sensor

618-1 Proximity Sensor

Electro-Sensors Model 618-1 is an 18mm shielded proximity...

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630 Proximity Sensor

630 Proximity Sensor

Electro-Sensors Model 630 is a 30mm unshielded proximity...

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630-1 Proximity Sensor

630-1 Proximity Sensor

Electro-Sensors Model 630-1 is a 30mm shielded proximity...

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906 Hall Effect Sensor

906 Hall Effect Sensor

The 906 standard Hall-effect sensor produces a digital pulse signal for use with speed switches, tachometers, counters, signal conditioners, or can be used as a direct pulse...

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906B (Bi-Directional) Hall Effect Sensor

906B (Bi-Directional) Hall Effect Sensor

The 906B is a quadrature Hall-effect sensor is designed for applications requiring both speed and direction information. It produces a digital pulse signal for use with speed switches, tachometers, counters, signal conditioners, or can be used as a...

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907 XP (explosion-proof) Hall-effect Sensor

907 XP (explosion-proof) Hall-effect Sensor

The 907 XP (explosion-proof) Hall-effect sensor produces a digital pulse signal for use with speed switches, tachometers, counters, signal conditioners, or can be used as a direct pulse...

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907B XP (Bi-Directional) Hall Effect Sensor

907B XP (Bi-Directional) Hall Effect Sensor

The 907B XP Hall-effect quadrature sensor is designed for applications requiring both speed and direction information. Available in either the 907BV or 907BH configuration, it produces a digital pulse signal for use with speed switches, tachometers,...

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916A Analog Sensor

916A Analog Sensor

Electro-Sensors 916A passive analog sensors are designed for use with pulse generators that provide magnetic targets, such as Electro-Sensors Pulser Discs and Split Collar Pulser Wraps. 916A sensors have a 3/4" threaded aluminum body, are supplied...

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917A XP Analog Sensor

917A XP Analog Sensor

Electro-Sensors Model 917A XP passive analog sensors are designed for use with pulse generators that provide magnetic targets, such as Electro-Sensors Pulser Discs and Split Collar Pulser Wraps. 917A explosionproof sensors are mounted in a rugged...

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931 XP Miniature Hall Effect Sensor

931 XP Miniature Hall Effect Sensor

Electro-Sensors 931 XP (explosion-proof) Hall-effect sensors provide digital pulse output signals, and are designed for use with magnetic targets such as Electro-Sensors 60 pole pair magnet wheels, pulser wraps, or pulser...

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932 Magnetoresistive Sensor

932 Magnetoresistive Sensor

Electro-Sensors 932 Magneto Resistive sensors are used with magnetic targets such as Electro-Sensors 60 pole pair magnet wheels, pulser wraps, or pulser discs to provide digital pulse output...

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933 XP Magnetoresistive Sensor

933 XP Magnetoresistive Sensor

Electro-Sensors 933 XP (explosion proof) Magneto Resistive sensors are used with magnetic targets such as Electro-Sensors 60 pole pair magnet wheels, pulser wraps, or pulser discs to provide digital pulse output...

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AIFO-200 Analog to Frequency Conversion Module

AIFO-200 Analog to Frequency Conversion Module

The AIFO-200 is an interface device used between an analog signal and a frequency-input device typically used in applications where a process is monitored by a transducer, PLC, PC, or some other device that provides a 0–10 Vdc or 4–20 mA signal....

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AP1000 Digital Tachometer

AP1000 Digital Tachometer

The AP1000 Series Digital Tachometer is a complete rate monitoring system that combines accuracy and reliability in a rugged, compact...

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DR1000 Digital Speed Switch

DR1000 Digital Speed Switch

The DR1000 Speed Switch is a complete precision rotation monitoring system ideal for detecting unwanted slowdown or stoppage of process equipment. The system is commonly applied to the following: drive trains, power driven components, crushers,...

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DRK 143TC Digital Ring Kits

DRK 143TC Digital Ring Kits

Electro-Sensors DRK 143TC Digital Ring Kits provide digital feedback from motors with NEMA C Face end bells. They can generate pulses down to zero speed and transmit without amplification up to 1500 feet. They are ideal pulse generators for speed...

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DRK 182TC Digital Ring Kits

DRK 182TC Digital Ring Kits

Electro-Sensors DRK 182TC Digital Ring Kits provide digital feedback from motors with NEMA C Face end bells. They can generate pulses down to zero speed and transmit without amplification up to 1500 feet. They are ideal pulse generators for speed...

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DRK 213TC Digital Ring Kits

DRK 213TC Digital Ring Kits

Electro-Sensors DRK 213TC Digital Ring Kits provide digital feedback from motors with NEMA C Face end bells. They can generate pulses down to zero speed and transmit without amplification up to 1500 feet. They are ideal pulse generators for speed...

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DRK 254TC Digital Ring Kits

DRK 254TC Digital Ring Kits

Electro-Sensors DRK 254TC Digital Ring Kits provide digital feedback from motors with NEMA C Face end bells. They can generate pulses down to zero speed and transmit without amplification up to 1500 feet. They are ideal pulse generators for speed...

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DRK 56C Digital Ring Kits

DRK 56C Digital Ring Kits

Electro-Sensors DRK 56C Digital Ring Kits provide digital feedback from motors with NEMA C Face end bells. They can generate pulses down to zero speed and transmit without amplification up to 1500 feet. They are ideal pulse generators for speed...

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EZ-100 Easy Mount Bracket Assembly

EZ-100 Easy Mount Bracket Assembly

The EZ-100 Easy Mount Bracket Assembly takes all the hassle out of mounting traditional Speed Switches and Speed Sensors. The EZ-100 allows a Speed Switch or Speed Sensor to be mounted to a rotating shaft without the need of any additional brackets...

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EZ-SCP Easy Mount Bracket Assembly

EZ-SCP Easy Mount Bracket Assembly

The EZ-SCP Easy Mount Bracket Assembly takes all the hassle out of mounting SCP-Series Speed Switches, and is ideal in new and retrofit applications. The EZ-SCP allows an SCP-Series Switch to be mounted to the end of a shaft without the need for any...

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FB420 Shaft Speed Sensor

FB420 Shaft Speed Sensor

Electro-Sensor’s FB420 is an integral part of the Electro-Sentry™ Hazard Monitoring System but is also available as a stand alone shaft speed sensor. The FB420 provides a 4-20mA signal directly proportional to the rotational speed of a monitored...

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HE950 Proximity Sensor

HE950 Proximity Sensor

HE950 sensors monitor gear-teeth, spokes, or keyways and produce a digital pulse signal for use with speed switches, tachometers, counters, and signal conditioners, or as a direct pulse input into...

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HH100 Hand-Held Digital Tachometer

HH100 Hand-Held Digital Tachometer

The HH100 Hand-Held Digital Tachometer combines both contact and non-contact sensing to accurately measure RPM, surface speed, and...

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High Speed Pulser Wraps

High Speed Pulser Wraps

High Speed Pulser Wraps are aluminum, or stainless steel split collars with magnets mounted on the outside circumference. The magnets serve as targets for Hall Effect, and Magneto Resistive sensors that switch when exposed to magnetic...

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ION Modbus Nodes

ION Modbus Nodes

ION Analog Input Node (AIN) - (12) 4-20mA inputs, Modbus RTU...

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LRB-1000 Speed Switch

LRB-1000 Speed Switch

LRB-1000 Speed Switches are complete systems with one individually adjustable set point for monitoring a single rotating...

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LRB-2000 Speed Switch

LRB-2000 Speed Switch

LRB-2000 Speed Switches are complete systems with two individually adjustable set points for monitoring a single rotating...

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M100 & M5000 Miniature Speed Switches

M100 & M5000 Miniature Speed Switches

M-Series Miniature Speed Switches are complete rotation monitoring systems ideal for detecting unwanted slow down or stoppage of process equipment. The M100 has a relay setpoint range of between 10RPM and 100RPM. The M5000 has a relay setpoint range...

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M100T & M5000T Miniature Speed Switches

M100T & M5000T Miniature Speed Switches

The M100T and M5000T Miniature Speed Switches are complete rotation monitoring systems ideal for detecting unwanted slow down or stoppage of process equipment. These switches have a terminal block inside the housing for easy wiring connection and...

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Miniature Pulser Wraps

Miniature Pulser Wraps

Miniature Pulser Wraps are PVC, aluminum, or stainless steel split collars with magnets mounted on the outside circumference. The magnets serve as targets for Hall Effect, and Magneto Resistive sensors that switch when exposed to magnetic...

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Narrow Pulser Wraps

Narrow Pulser Wraps

Narrow Pulser Wraps are PVC, aluminum, or stainless steel split collars with magnets mounted on the outside circumference. The magnets serve as targets for Hall Effect, and Magneto Resistive sensors that switch when exposed to magnetic...

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PD225 Pulser Disc

PD225 Pulser Disc

PD225 Heavy Duty Pulser Discs are constructed of PVC and can be used with any Electro-Sensors Hall-Effect or Magneto Resistive...

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PD455 Pulser Disc

PD455 Pulser Disc

PD455 Heavy Duty Pulser Discs are constructed of PVC and can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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PD725 Pulser Disc

PD725 Pulser Disc

PD725 Heavy Duty Pulser Discs are constructed of aluminum and can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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PDE450 Pulser Disc

PDE450 Pulser Disc

PDE450 Heavy Duty Pulser Discs are constructed of PVC and can be used with any Electro-Sensors Hall Effect or Magneto Resistive...

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PVC100 & PVC5000 Miniature Speed Switches

PVC100 & PVC5000 Miniature Speed Switches

The PVC-Series of corrosion-resistant speed switches are self-contained rotation monitoring systems that are ideal for detecting the unwanted slow down or stoppage of process...

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QDRK 143TC Quadrature Ring Kit

QDRK 143TC Quadrature Ring Kit

The QDRK 143TC Quadrature Ring Kit provides a digital, quadrature (bi-directional) feedback signal from motors with NEMA C Face end bells. The QDRK Series is designed for use with electronic control equipment requiring rotational direction...

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QDRK 182TC Quadrature Ring Kit

QDRK 182TC Quadrature Ring Kit

The QDRK 182TC Quadrature Ring Kit provides a digital, quadrature (bi-directional) feedback signal from motors with NEMA C Face end bells. The QDRK Series is designed for use with electronic control equipment requiring rotational direction...

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QDRK 213TC Quadrature Ring Kit

QDRK 213TC Quadrature Ring Kit

The QDRK 213TC Quadrature Ring Kit provides a digital, quadrature (bi-directional) feedback signal from motors with NEMA C Face end bells. The QDRK Series is designed for use with electronic control equipment requiring rotational direction...

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QDRK 254TC Quadrature Ring Kit

QDRK 254TC Quadrature Ring Kit

The QDRK 254TC Quadrature Ring Kit provides a digital, quadrature (bi-directional) feedback signal from motors with NEMA C Face end bells. The QDRK Series is designed for use with electronic control equipment requiring rotational direction...

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QDRK 56C Quadrature Ring Kit

QDRK 56C Quadrature Ring Kit

The QDRK 56C Quadrature Ring Kit provides a digital, quadrature (bi-directional) feedback signal from motors with NEMA C Face end bells. The QDRK Series is designed for use with electronic control equipment requiring rotational direction...

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SA420 Digital Signal Conditioner

SA420 Digital Signal Conditioner

The Electro-Sensors SA420 Signal Conditioner is a complete system which provides an analog signal directly proportional to the speed of a monitored shaft. The 0-10 Vdc and 4-20 mA outputs can be sent to a chart recorder, digital display, PLC, loop...

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SCP1000 Presettable Speed Switch

SCP1000 Presettable Speed Switch

SCP1000 Presettable Machine Speed Switches are complete systems providing one individually adjustable relay set point, while monitoring a single rotating...

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SCP2000 Presettable Speed Switch

SCP2000 Presettable Speed Switch

SCP2000 Presettable Machine Speed Switches are complete systems providing two individually adjustable relay set points, while monitoring a single rotating...

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Series 18 Shaft Speed Sensors

Series 18 Shaft Speed Sensors

Series 18 sensors are available in a range of output sensing and signaling options to meet even the most demanding application requirements. The sensors function by detecting passing magnets from a shaft-mounted pulser disc or wrap and output a...

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Slotted Pulser Wraps

Slotted Pulser Wraps

Slotted Pulser Wraps are PVC, aluminum, or stainless steel split collars with magnets mounted on the outside circumference. The magnets serve as targets for Hall Effect, and Magneto Resistive sensors that switch when exposed to magnetic...

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SpeedTalker DN-BH Devicenet Shaft Speed Sensor

SpeedTalker DN-BH Devicenet Shaft Speed Sensor

Electro-Sensors SpeedTalker DN-BH is a DeviceNet speed sensor with alarms. ODVA conformance tested and housed in a rugged, stainless steel enclosure, the SpeedTalker DN-BH is designed to operate in demanding industrial environments. It features a...

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SpeedTalker DN-XP Devicenet Shaft Speed Sensor

SpeedTalker DN-XP Devicenet Shaft Speed Sensor

Electro-Sensors SpeedTalker DN-XP is a DeviceNet speed sensor with alarms. ODVA conformance tested and housed in a rugged, explosion-proof enclosure, the SpeedTalker DN-XP is designed to operate in demanding, hazardous and industrial environments....

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SpeedTalker-DN (UI) DeviceNet Shaft Speed Monitor

SpeedTalker-DN (UI) DeviceNet Shaft Speed Monitor

Electro-Sensors' SpeedTalker-DN (UI) converts pulse frequencies from external sensors to RPM units, providing tachometer measurement of up to two rotating shafts and the status of eight alarm functions over DeviceNet. The SpeedTalker DN (UI) is ODVA...

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SS110 Slow Speed Switch

SS110 Slow Speed Switch

The SS-110 Slow Speed Switch is a complete system that has one adjustable set point for monitoring a single rotating...

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ST420 Shaft Tachometer Sensor

ST420 Shaft Tachometer Sensor

The ST420 is an analog-output shaft speed sensor. It detects magnetic pulses from a rotating shaft-mounted magnetic pulser target (disc or wrap) and outputs a smooth continuous 4-20mA analog signal in direct proportion to the pulse frequency...

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Stainless Steel Disc Guards

Stainless Steel Disc Guards

STAINLESS STEEL DISC-GUARDS protect your critical disc and sensor or switch from from impact or shock damage. Disc-Guards also help minimize the effects of dust, dirt, grease, and grime. Available for M & SCP-Series Switches and 907, 917 &...

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Standard Pulser Wraps

Standard Pulser Wraps

Standard Pulser Wraps are PVC, aluminum, or stainless steel split collars with magnets mounted on the outside circumference. The magnets serve as targets for Hall Effect, and Magneto Resistive sensors that switch when exposed to magnetic...

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TR400 Speed & Direction Indicator

TR400 Speed & Direction Indicator

The TR400 is a Full Logic Control Process Ratemeter that can display any production rate or time in process easily and...

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TR5000 Ratemeter Tachometer

TR5000 Ratemeter Tachometer

The TR5000 is a Full Logic Control Process Ratemeter that can display up to three separate values of rate (from up to 2 different shafts) and compare them to programmable set...

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Traction Wheel Assembly

Traction Wheel Assembly

Electro-Sensors Traction Wheel Encoder Assembly consists of a rotary shaft encoder, the traction wheel, the mounting bracket hinge clamp assembly, and the mating...

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UDS1000 Reverse Rotation Detector

UDS1000 Reverse Rotation Detector

The UDS1000 Reverse Rotation Detector is a complete system, designed to detect shaft...

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