Shaft Speed Sensors

Shaft Speed Sensor Features

  • Large Gap, Non-Contact Sensing 
  • 5-year limited warranty
  • Pulse (NPN, PNP) or 4-20 mA Output
  • No User Calibration
  • Single or Quadrature (bi-directional) outputs
  • Explosion Proof (XP), Intrinsically Safe (IS) and Dust-Ignition-Proof (DIP) Options
  • Rugged and Reliable
  • Easy to Install and Set Up

Shaft Speed Sensor Overview

Electro-Sensors offers many shaft speed sensors for virtually any environment. Our Hall-Effect and Magnetoresistive Sensors sense magnetic targets and work with our magnetic pulsers (DiscsWraps, and Wheels).   Our proximity sensors sense ferrous metal targets, including bolt-heads, screws, gearteeth and keyslots.  Our speed sensors output shaft speed via PNP, NPN, or 4-20 mA.  That data can be used by facilities to monitor machinery and safeguard equipment.  Monitoring shaft speed is a fundamental aspect of hazard monitoring and should be utilized by any facility with rotating shafts.  

Products

907 XP Hall Effect

907 XP Hall Effect

Hall Effect digital speed sensors powered by 5-24 VDC, provide NPN open collector output, have a 1-inch NPT conduit port, and are compatible with a PLC digital I/O. 907 XP (Explosion Proof) sensors are used in applications requiring hazardous location ratings, or in applications where the sensor may be subject to abuse. Bi-Directional models are available (907B XP)
Product Details
906 Hall Effect

906 Hall Effect

Hall Effect digital speed sensors powered by 5-24 VDC, provide NPN open collector output, compatible with a PLC digital I/O. Aluminum, Stainless Steel, and PVC body types, high-temperature cable, and Quadrature options.
Product Details
FB420

FB420

SPDT output relay and 4-20 mA output speed sensor and speed switch, housed in a explosion proof and NEMA 4X enclosure. Relay can be set for overspeed or underspeed. 24 VDC.
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Series 18

Series 18

Hall Effect and Magnetoresistive sensors, single channel or bi-directional signaling, NPN and PNP transistor outputs, available with four housing options. FM Approved Intrinsically Safe
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ST420-LT / ST420-DI

ST420-LT / ST420-DI

The ST420-LT and ST420-DI are 2-wire, loop-powered, 4-20 mA analog output shaft speed sensors in rugged stainless steel M18x1 housings with integral conduit attachments; FM Approved Dust-Ignition-Proof for Class II Division I hazardous locations.
Product Details
1101 Sensor

1101 Hall Effect Sensor

The stainless steel Hall Effect sensor provides a square-wave pulse frequency output, NPN open-collector. It is 5-24 VDC powered with zero speed operation and no signal loss. These Hall Effect sensors work with Electro-Sensors Pulser Discs and Split Collar Pulser Wraps.
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1102_932_933_XP_Final_Cutout_2.jpg

1102 / 932 / 933 XP

Magnetoresistive speed sensors powered by 5-24 VDC with an NPN open collector output. Stainless steel, aluminum, and explosion proof models.
Product Details
600 Series Proximity

600 Series Proximity

Proximity sensors are active digital sensing devices with full NPN output signal down to zero Hz. Outputs are CMOS compatible. Available in a wide range of voltages. Metal housing is corrosion-resistant.
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HE950

HE950

Gear tooth sensor powered by 5-24 VDC, provides an NPN open collector digital output signal. Senses frequency range up to 12 kHz. Threaded aluminum, NEMA 4 housing.
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916A / 917A

916A / 917A

Model 916A and 917A Passive Analog Sensors are designed for use with pulse generators that provide magnetic targets, such as Pulser Discs and Split Collar Pulser Wraps.
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931 XP Hall Effect

931 XP Hall Effect

The explosion proof 931 XP Hall Effect sensor provides a square-wave pulse frequency output, NPN open-collector. It is 5-24 VDC powered with zero speed operation and no signal loss. The differentiating features between the 931 XP and the 907 XP are that the 931 XP has slightly smaller body and 1/2 inch NPT conduit port. These Hall Effect sensors work with Electro-Sensors Pulser Discs and Split Collar Pulser Wraps.
Product Details
ST420

ST420

The ST420 is a 2-wire, loop-powered, 4-20 mA analog output shaft speed sensor in a rugged stainless steel M18x1 housing; UL Listed Intrinsically Safe (IS) for Class I Division I and Class II Division I hazardous locations.
Product Details
SpeedTalker-DN(BH) DeviceNet

SpeedTalker-DN(BH) DeviceNet

Shaft Speed Sensor with Alarms (Shaft Speed Switch) and DeviceNet network interface
Product Details
SpeedTalker-DN(XP) DeviceNet

SpeedTalker-DN(XP) DeviceNet

Shaft Speed Sensor with Alarms (Shaft Speed Switch) and DeviceNet network interface
Product Details