UNITECH · Our own brand
Automation & wiring, engineered by UNITECH
Sensors, terminal blocks, wires, cords and harnesses under one brand you can standardise on.
View all UNITECH products
Proximity SensorsInductive · capacitive · photoelectric · M4–M50
Terminal Blocks & ConnectorsPluggable, screw, spring & barrier types
Wires & CablesHook-up, flexible, multicore & shielded · RoHS PVC
Power Cords & Wire Harnesses2 & 3-pin cords, computer cords, LED harnesses
WOER · Heat-shrink
Genuine WOER heat-shrink, direct from the manufacturer
UNITECH Inc. is an authorised distributor of WOER heat-shrink tubing and sleeves.
All WOER ranges
UNITECH range58 models
InductiveCapacitivePhotoelectric
Non-contact detection for machines, conveyors and panels. M4 to M50 threaded housings in nickel-plated brass, every model IP67, with an LED that shows switching status.
Applications shown are from the UNITECH catalogue: metal parts on a chute, fill level of liquids, counting cartons.
Three ways to sense
Each family works on a different principle. Start with your target, then narrow down by size, range and wiring.
Detects metal targets without touching them. The workhorse for machine positioning and part detection.
From the catalogue
Detects liquids and non-metallic materials as well as metal. Sensing distance is adjustable.
From the catalogue
Detects objects at a distance with a light beam. Three modes for short, medium and long range.
From the catalogue
Product finder
Every value comes from the UNITECH catalogue. Add models to your enquiry list and send them in one go.
Sensor selector
The list narrows as you answer. Then open the matches in the product finder, or send them to us to confirm.
Read the part number
Tap a sample code to see how it breaks down.
Flush models mount level with the surrounding metal. Non-flush models have a sensing face that stands proud, and reach further: an M18 is 5 mm flush and 8 mm non-flush; an M30 is 10 mm and 15 mm.
PNP outputs switch the positive supply to the load; NPN outputs switch the load to 0 V. Match what your PLC input expects. In UNITECH codes, PO/PC is PNP and NO/NC is NPN.
3-wire DC models have supply, output and 0 V wires. 2-wire models connect in series with the load, like a switch: 20–50 V DC or 85–250 V AC, NO or NC.
Where they work
Positioning in metal processing, counting metal parts on chutes and feeders.
Fill level of liquids and non-metallic materials, milk in cartons, cans and their fill level.
Counting cartons, cans and bottles, caps on bottles, stack height, parking gates and car wash.
Complete the installation
The rest of the job comes from the same supplier, on the same quote.
Sensor FAQ
UNITECHProximity Sensors
Catalogue · 95 pages
Full catalogue
Dimension drawings and wiring diagrams for all 58 models. Each model in the finder shows its catalogue page.
Request the PDF UNITECH cover in progressBoth are 3-wire DC outputs. A PNP output switches the positive supply to your load; an NPN output switches the load to 0 V. Check what your PLC or controller input expects. In UNITECH part numbers, PO/PC means PNP and NO/NC means NPN, so UTI1805PO/PC and UTI1805NO/NC are the same M18 sensor with different outputs.
Inductive sensors detect metal only. For liquids and non-metallic materials, use a capacitive sensor; the catalogue lists fill-level control and milk in cartons as typical uses. For objects at a distance, use a photoelectric sensor; through-beam models are listed for verifying objects in clear bottles.
If the sensor sits inside a metal bracket or plate with its face level with the surface, choose flush. If the face can stand clear of surrounding metal, non-flush gives a longer sensing distance in the same size: 8 mm instead of 5 mm at M18, and 15 mm instead of 10 mm at M30.
Sn is the rated sensing distance: how far from the face the sensor switches, measured with the standard target listed for each model. For inductive models the standard target is a square plate the size of the sensor, for example 18 × 18 × 1 mm for M18.
Send us your requirement with the target material, distance, supply voltage and output type, and we’ll come back with the closest match from the range.
Add models to your enquiry list with quantities, then send the list on WhatsApp or email. We reply with price and availability, and deliver across India.
Request a quote
Send part numbers, quantities or a drawing. We come back with the matching part, price and availability.
