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Contrinex inductive devices work according to one of three different technologies. All involve the generation of an alternating magnetic field that emerges at the sensing face. The presence of a conductive, generally metallic, object influences this field in a way that can be detected and evaluated by built-in electronics. All Contrinex ASIC sensors are IO-Link enabled in PNP NO versions.

The Classics family uses conventional inductive sensor technology, but with the benefit of a Contrinex ASIC (application specific integrated circuit). ASIC technology ensures reliability, stability and ease of commissioning, due to low variation. Sensors in this family achieve operating distances up to 2 x the industry standard. All ASIC sensors in the Classics family are IO-Link enabled in PNP NO versions.

The Extra Distance family is based on the patented Condist oscillator developed by Contrinex. Sensors benefit from up to 4x the standard operating distance, keeping them out of harm's way in rugged, industrial environments. Sensor lifetime is therefore increased.

The Full Inox family is based on Contrinex's patented Condet technology. These one-piece stainless steel sensors are not only the most durable on the market, they also offer long operating distances on any conductive metal.

CONTRINEX Extreme Inductive Sensors for Harsh Environments Distributors

If you are looking for CONTRINEX Products, please call us on (844) 331-9380 or email us at we will do our best to help you find the proximity sensors that you are looking for at the most competitive prices possible. If you are searching for Inductive light screen technical information (data-sheets) please use the datasheets or product selection guide page links.


The light-emitting diode (LED) emits a beam of modulated light towards the target. This beam is interrupted by the target, causing partial reflection. A part of the reflected light reaches the sensing face of the receiver. Depending on the operating principle, either the interrupted beam or the reflected light is used for further processing.

Contrinex photoelectric devices are divided into nine technology families, depending on their operating principle and use. The program includes energetic diffuse sensors, diffuse sensors with background suppression, reflex sensors, throughbeam sensors, sensors with analog output, color sensors, contrast sensors, distance measuring sensors and optical amplifiers.

A diffuse-mode, or energetic-diffuse, photoelectric sensor is a reflective sensor, containing a transmitter and a receiver in a single housing. The sensor emits a light beam toward a distant target that acts as a reflector, returning part of the transmitted light to the sensor. The receiver detects the amount of light reflected by the target, triggering the sensor when the light intensity reaches a threshold value. Diffuse-mode sensors are cost-effective as they do not require separate reflectors or receivers, and detect reflective targets with ease. Sensing range depends on the target's size, shape, color and surface finish, although sensor sensitivity is adjustable during installation to compensate for targets with poor reflective qualities.

CONTRINEX C-12 Subminiature Photoelectric Sensor Distributor


Capacitive sensors are used in machines, installations and vehicles for monitoring the levels of liquids, pastes and bulk material. These materials can even be detected through non-metallic dividing walls. In addition, capacitive sensors are suitable as limit switches, contact-free position switches, for monitoring and positioning, as pulse generators for counting purposes, distance and speed measurement, and much more.

The electrodes at the device's sensing face permit the sensor to detect the dielectric conditions in its close surroundings. Depending on the distance between the target (or material) to be detected and the capacitive sensor, the capacitance in the measuring zone changes. The capacitance is dependent not only on the above-mentioned distance, but also on the dielectric constant (er) of the target, as well as its shape. As the sensor approaches the target, the capacitance increases. When the set threshold value is reached, the transistor-oscillator is activated. By means of the built-in electronics, a changeable, electrical current is generated which, depending on the execution of the device, is available as a linear current signal or as a binary voltage at the output.

Using capacitive sensors, electronic circuits and PLCs, as well as relays or contactors can be controlled directly. Capacitive sensors are enclosed in synthetic or metal housings and potted in epoxy resin. They are, moreover, insensitive to dirt and shock.

CONTRINEX Capacitive Proximity Switches Distributors


Ultrasonic sensors can be used as contact-free devices in many areas of automation. They are employed wherever distances have to be measured in air, since they not only detect objects, but they can also indicate and evaluate the absolute distance between themselves and the target. Changing atmospheric conditions, (e.g. temperature variations) are compensated during evaluation of the measurement.

Ultrasonic devices working as diffuse or reflex sensors send out ultrasonic impulses in cyclical intervals. If these are reflected by an object, the resulting echo is received and converted into an electrical signal. Detection of the received echo is dependent on its intensity, itself dependent on the distance of the object from the sensor. The devices function according to the echo-delay principle, i.e. the time delay between the emitter and echo impulses is evaluated.

Due to the sensor's construction, the ultrasound is radiated in a lobar shape. Only reflecting objects within this sound beam are detected. Echoes in the blind zone between the sensing face and the sensing range cannot be evaluated. The targets to be detected can be in the solid, liquid, granular or powder state. The material may be transparent or colored, of any shape, and with a polished or matt surface. All even or flat surfaces up to an angular deviation of approximately 3° from perpendicular to the sound beam can be detected with certainty, even at the maximum operating distance.

CONTRINEX Ultrasonic Proximity Sensors Distributors

Light Screens & Access Control Barriers

The Safetinex product line produced by Contrinex offers high-quality safeguarding solutions for both personnel and machinery. The range comprises highly sensitive Type-4 devices for finger, hand and access protection in various lengths. The safety portfolio now also comprises a complete range of hand protection devices in various lengths for Type 2, category 2, PL c, SIL 1 applications.

Safetinex products have been developed in compliance with the applicable international safety standards and have obtained the required product certification for use in the European Union, the United States of America and all other countries where the applicable IEC standards have been adopted. A complete range of Safetinex light curtains and access control barriers is offered for the highest safety requirements: safety category 4, PL e according to EN/ISO 13849-1, Type 4 according to IEC 61496-1 and -2. In addition, hand protection devices are available with a Type 2 safety rating (IEC 61496-1 and -2) which meet category 2, PL c according to EN/ISO 13849-1 and SIL 1 according to IEC 61508. All Safetinex products have successfully obtained the highly rated TÜV certification.

CONTRINEX Safetinex YBB Safety Light Curtains Distributors


Contrinex low-frequency RFID technology features not only conventional components, but also a range of all-metal read/write modules and transponders executed in stainless steel. These devices are particularly well suited for difficult operating environments that are exposed to cleaning, chemical products, water and frost. They are moreover highly resistant to mechanical shocks.

Contrinex high-frequency RFID technology (13.56 MHz) meets the requirements of ISO/IEC 15693 and is therefore not limited to transponders of a specific manufacturer. The new Contrinex high-frequency system is moreover particularly user friendly. Up to 10 read/write modules can be connected to the RS485 network and controled directly by a PC via a USB adaptor developed by Contrinex. The physical address of the read/write module can be defined by means of a built-in selector.

CONTRINEX Low-Frequency Radio Frequency Identification Systems (RFID) Distributors
Radio Frequency Identification Systems


To ensure you have the right cables and cable connectors for your application, we offer a range of products that are not only quick and easy to use, but also tailored to your needs. Impervious and cleaning resistant cable sets are available for applications that require an intensive wash-down. ECOLAB certified cables and connectors are also provided to meet food-safe application requirements. Use our connectors, cables and distribution boxes for speedy setup times and optimum system implementation.

  • Comprehensive cable and connector program
  • IP 69K and Ecolab-tested cables for the food and beverage industry
  • UL-approved cables and connectors
  • Cables with straight or right-angle sockets
  • Distribution boxes
  • Field-attachable connectors
  • T-connectors
  • User-friendly standard portfolio
CONTRINEX Cables, Connectors & Distribution Boxes Distributors



Laser diffuse sensors with background suppression have an excellent detection accuracy. The narrowly focused beam with its easily visible light spot results in a clearly defined, largely contrast-independent switch point.

Laser reflex sensors have an excellent beam quality, thereby guaranteeing a precise switch point anywhere between the emitter and the reflector. Even very small objects can be detected without problem.

Laser diffuse sensors with analog output are ideal for contact-free and quick distance measuring. Their small but visible light spot permits a clear definition of the measuring point.

Contrinex Series 5050L Laser Switches Distributors
Laser Switches

Contrinex inductive ring sensors are available in various sizes, and consequently suitable for a large range of applications. They feature a very robust, compact and universally mountable housing with integrated electronics. They are used mainly in assembly technology. In automated supply applications, they detect small metal parts in feeder tubes, and in the food industry, they guarantee the absence of metal parts in fluids, pastry, and pastes. Due to their static operating principle, the devices are also suitable for monitoring wire breakages and jams.

The very short response time permits safe detection, even at very high target speeds (for some types, up to 35 m/s). For problem-free signal shaping at high part speed, the devices feature adjustable pulse stretching of the output signal. Due to their construction, the devices are virtually insensitive to environmental influences. In addition, the inductive operating principle renders them highly insensitive to dirt. Connection is via a S12 connector.

CONTRINEX Inductive Ring Sensors Distributors
Ring Switches

Contrinex photoelectric fork sensors are available in various sizes, and consequently suitable for a large range of applications. They feature a robust, compact and universally mountable housing. They work according to the principle of through beam sensors, replacing them whereever long operating distances are not required. Their advantage, compared to solutions with separate emitter and receiver, lies in their simple installation. Only one component has to be installed, there is no need for mechanical alignment, and the wiring is less demanding.

These devices are suitable for the whole field of assembly technology. The sensors are available with clocked or non-clocked light. Their features differ with respect to response time and ambient light limit. The very short response time permits safe detection at high target speeds, even of small parts. All devices are equipped with sensitivity adjustment.

CONTRINEX Fork Thru-Beam Sensors Distributors
Thru-Beam Switches

For fast field checks of various sensor types (inductive, capacitive, photoelectric and ultrasonic) 10 to 30 V.

  • Suitable for PNP and NPN devices, N.O. and N.C. versions
  • Automatic PNP/NPN recognition
  • LED and acoustic indicators
  • Built-in steel target (non-standardized) for checking inductive sensors
  • Power supply from a single 9 V battery (type IEC 6LR61)
  • LED battery-state indication
  • Built-in step-up voltage converter
  • Automatic switch off after approx. 30 sec of non-use
CONTRINEX ATE-0000-002 Sensor Testers Distributors
Switch Testers

Capacitive Label Sensor

Contrinex capacitive label sensors feature simple adjustment, reliable operation, and a compact, robust housing. They are used for the detection of labels, adhesive joints, tears and double sheets. Due to their capacitive operation principle, they are able to detect even transparent materials without problem.

The material to be detected, e.g. labels on a support strip, is placed in the sensor's slot. Strip position and label shape are insignificant, considerably facilitating the use of these devices.

The sensitivity is easily and quickly set by means of teach-in. This results in optimum adjustment and problem-free material changeability. The housing can be easily separated by loosening two socket-head screws, which enables cleaning without dismantling the base and without the need for readjustment.

CONTRINEX Capacitive Label Sensors Distributors
Capacitive Label Switch

Mounting Clamps

For cylindrical sensors from & 3 mm to M30.

The mounting clamp comes in one-piece construction.

Simple installation, reduced labor, reduced downtimes.

The oblong holes permit clamp adjustment.

The clamps remain in place even when sensors are exchanged.

Loosen screw, exchange sensor, tighten screw - finished!

Some mounting clamp types feature a limit stop.

This allows sensors to be exchanged without the need for readjustment.

Contrinex Sensor Mounting Clamp Distributor
Mounting Clamp

Our industrial factory automation supplies warehouse in Boise, Idaho stocks some CONTRINEX products enabling us to further assist you in finding the correct sensors for your application in the USA. Whether we have CONTRINEX Sensors in stock in Boise, Idaho or need to ship direct from CONTRINEX to any USA cities; Clearwater Tech can get proximity switches to you fast and save you money! It will be very helpful if you have the CONTRINEX proximity switch part numbers ready, then our sales representatives can provide you with a pricing and availability quote for Ultrasonic Sensors that you are looking for in seconds. If you do not have the part numbers for Inductive Proximity Switches, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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Toshiba Drives

Our Drives feature compact enclosures with reactor-less, harmonic-suppressing technologies and built-in filters. This saves time, wiring costs, and installation space, which are all critical factors for an HVAC system. In addition, our drives are equipped with numerous safety features and communications for easy maintenance and to help protect your drive and system from common HVAC anomalies. Toshiba provides low voltage adjustable speed drives that are specifically

Leuze Sensors

RTFR 3B Model is suited for scanning distances of up to 200 mm. Fading suppresses objects in the background. An economical scanner for standard applications in which there are no special requirements on background suppression. If larger ranges are needed for standard applications, Leuze Electronic's RTR 3B energetic diffuse reflection light scanner with scanning range adjustment is the best choice.