Contrinex produces a wide range of sensing equipment, including virtually all conventional standardized inductive and photoelectric sensors.

800.242.3332 |


Contrinex Inductive Sensors

Inductive Sensor

Robust and highly reliable, Contrinex inductive sensors are the fit-and-forget choice for non-contact detection of metallic targets at distances up to 65mm. Vacuum-encapsulated electronics and metal housings protect against shock, vibration, dust, dirt and moisture, making inductive sensors ideal for highly demanding conditions. An inductive sensor generates a magnetic field that is attenuated by a metal target. As a sensor nears its target, a sensing circuit detects the degree of attenuation and switches the output accordingly.

New Features

  • Smallest self-contained miniature inductive sensors on the market
  • M12 full-metal sensors with increased operating distance (15 mm)
  • Flexible cubic sensors with rotatable active face
  • Weld-immune full metal sensors

Inductive Sensor Highlights

  • Practically indestructible full-metal sensors for extreme conditions
  • Subminiature sensors with full-size functionality
  • Sensors with 4x operating distance
  • Oustandingly durable sensors for high cyclic pressures (peak: 1000 bar / 14510 psi)
  • Highly accurate analog output sensors for distance control
  • Full-metal sensors with Factor 1 on steel and aluminum
  • Sensors to withstand high temperatures (up to 230°C / 446°F)
Read More

Contrinex C23 Photoelectric Sensors

C23 Sensors

The C23 Series of photoelectric sensors includes diffuse, reflex, through-beam and background suppression types. They reliably detect objects of different colors and material types, even under difficult conditions. All PNP switching versions of this sensor series are equipped with IO-Link, preparing them for machine-to-machine communication within the context of the Internet of Things.

  • Data monitoring and diagnosis of sensor functions
  • Sensitivity adjustment and teach-in
  • Choice of switching type and configuration of switching behavior
  • Setting of sensor mode and – for through-beam types – selection of emitting sequences
  • Detection counter and temperature measurement
Read More

Contrinex Photoelectric Sensors


A reflex, or reflective, photoelectric sensor contains a transmitter and a receiver in a single housing, and emits a pulsed, focused light beam toward a distant reflector. Reflected light returns to the sensor, arriving at the receiver. When a target object interrupts the light beam, the receiver detects the reduced light intensity and triggers the sensor. The relatively high level of reflected light allows reflex sensors to achieve sensing distances up to eight meters. For applications where the target object itself reflects light back toward the sensor, models with polarization filters are available.

New Features

  • Ecolab-approved sensors with Plexiglas® window for food industry
  • Color Sensors
  • Fiber-optic amplifier with IO-Link

Photoelectric Sensor Highlights

  • Smallest self-contained subminiature sensors on the market
  • Excellent suppression of light-colored backgrounds
  • Highly accurate laser sensors
  • Analog output sensors for precise distance control
  • Sensors with short housings and 90° sensing
  • Wide range of fiber-optic amplifiers, including IO-link
  • Fiber-optic solutions for the most demanding environments
  • Through-beam sensors for longest sensing ranges
  • Excellent color recognition sensors
Read More

Contrinex Ultrasonic Sensors


Contrinex ultrasonic sensors provide reliable, non-contact detection of solid, liquid, granular or powdered materials in air, tolerating precipitation, humidity, dust and fumes. Target materials may be colored, transparent, polished or matt; detection is practically independent of the target’s direction of travel. Diffuse-mode and reflex sensors emit bursts of high-frequency sound waves toward a target, measuring the time elapsed until an echo is received. They contain a transmitter and a receiver in a single housing. Ultrasonic sensors are compensated for temperature variation, but are unsuitable for use with very hot targets. The technology is ideal for distance measurement and presence- or proximity-detection at moderate distances.

New Features

  • Ø12 sensors for applications with limited space
  • Ø12 sensors with external teach
  • Ø12 sensors with analog output

Ultrasonic Sensor Highlights

  • Detection independent of target material, color, shape or surface
  • Ready-to-use cylindrical sensors with integral connector
  • Easy adjustment by either potentiometer or teach-in
  • Dual output sensors, including analog and digital
  • High resolution analog output, current or voltage
  • Normal length or short housings and 90° sensing
  • Reduced blind zone
  • High excess gain - insensitive to dirt and ambient noise

Contrinex Capacitive Sensors


Robust and extremely versatile, Contrinex capacitive sensors detect position or presence of conductive and non-conductive materials, including liquids, pastes and bulk solids. Capacitive technology permits detection of targets through thin non-metallic barriers, ideal for controlling packaging and filling processes. Capacitive sensors generate electrostatic fields that change as a target approaches. The target material increases the sensor capacitance, triggering an internal oscillator at the pre-set sensing distance. Resin-encased with plastic or metal housings, capacitive sensors resist impact, vibration and contamination, allowing contact or non-contact sensing.

New Features

  • Reliable level control of sticky and viscous materials
  • Sensors with hygienic, FDA-compliant, PTFE housings

Capacitive Sensor Highlights

  • Detection of virtually alltarget materials
  • Easy adjustment with potentiometer and LED
  • Detection through non-metallic pipes and containers
  • Sensors for use in harsh chemical environments
Read More

Contrinex RFID (Radio Frequency Identification)


RFID (Radio Frequency Identification) is used in numerous automation and logistics applications. Durable electronic labels (called transponders or tags) allow objects to be identified throughout production and logistics processes, storing essential data for tracking, tracing and quality assurance. No line of sight is required. Our RFID solutions are designed to meet the demanding requirements of industry: networked automation, flexible assembly and production, warehousing and logistics. Our expertise in full-metal sensing technology also brings you the most durable all-metal tags available in low-frequency technology. Our high frequency system allows up to 253 addresses to be accessed from a control console. Use our RFID solutions to eliminate costly errors in complex operations, maximize quality and speed-to-market, and rationalize material flow.

RFID High Frequency

High Frequency RFID

Contrinex high frequency RFID technology (13.56 MHz) is ISO/IEC 15693 compliant and therefore not limited to a specific manufacturer’s transponders. Up to 253 R/W modules can be connected directly to an RS485 network. Fieldbus interfaces are available for connecting up to 32 RWMs. A Contrinex USB adaptor can connect a network of up to 10 RWMs for direct control by a PC. RWM address is selectable by potentiometer, or programmable with ConID HF software. Tags have 160 bytes of user memory in 40 blocks of 4 bytes each. Memory blocks can be password protected and an anticollision algorithm allows each RWM to recognize up to 5 TAGs. Read/write distances extend to 60 mm.


  • Networkable: direct connection to RS485 bus
  • Compatible with all ISO/IEC 15693 compliant TAGs
  • USB adaptor for a network of RWMs
  • Interfaces for PROFIBUS DP, DeviceNet, Ethernet/IP, PROFINET IO, EtherCAT
  • Temperature up to 125°C
  • Anticollision algorithm (up to 5 TAGs can be recognized in front of a RWM)

RFID Low Frequency

Low Frequency RFID

Contrinex low frequency RFID technology (125 kHz, operating frequency: 31.25 kHz) features not only conventional metal/PBTP components, but also a range of all-metal read/write modules and transponders in stainless steel. These devices have high resistance to mechanical shocks and are particularly well suited to difficult operating environments with exposure to harsh cleaning, chemicals, water.


  • All-metal housing, embeddable
  • Reading/Writing through metals
  • OTP (One Time Programmable) or password protection of the words in the TAG
  • Reliability. (Considerably reduced downtime)
  • Mechanically extremely robust
  • Chemically extremely robust. (One-piece stainless steel housing)
  • Food safe and saltwater resistant (316L/V4A)
  • Interfaces for RS485, PROFIBUS DP, DeviceNet, Ethernet/IP
  • Temperature up to 150°C
  • Impervious: IP68 and IP69K
Catalog Request
Contrinex Catalog

If you are interested in having literature on Contrinex products mailed to you fill out our literature request and we will send you some right away!

engineering icon

Contrinex Applications

Filling Machines

Filling machines are widespread in many industries, including solids handling, chemical, food, beverage and pharmaceutical, often operating continuously around the clock. Industrial sensors detect containers, lids, labels and caps, measure fill levels and more, and play a vital role in keeping automated filling equipment running reliably, accurately and with minimal downtime.

Machine Tools

Machine tools impose harsh operating conditions on the sensors needed to control cutting, forming and joining processes that run continuously in many metalworking factories. Common hazards include cutting fluid, cooling sprays, swarf particles and electromagnetic interference, making sensor selection particularly difficult where world-class performance is essential.

Packaging Machines

On the journey from manufacturer to consumer, packaging protects all types of product, including foods, pharmaceuticals, white goods and cosmetics. Although packaging helps bring competitive products to target markets in the best possible condition, costs are often significant, and automation helps minimize the impact.

Special Purpose Machines

Special-purpose machines exploit the versatility and convenience of sensor technology for tasks that range from simple position sensing to complex feature detection and identification, in applications as diverse as electronic assembly and plastic molding. Sensor adaptability is also crucial to the economics of one-off and customized machine production.

Textile Machines

Machinery manufacturers supplying the textile, leather and clothing industries rely on sensors for efficiency, reliability and precision. World-class accuracy is essential for production of technical textiles and for making the carbon or chemical fibers used in modern, innovative products, often in highly automated factories.

engineering icon

Catalogs & Videos

2014 Contrinex Sensor Catalog

Contrinex RFID Catalog