Label Sensor

View as Grid List

Display per page

Sort by

Photoelectric Label Sensor, NPN/PNP, Slot Type

$189.76

SKU: ATO-LABEL-TR03

Factory price photoelectric label sensor for sale online, the sensor adopts 3mm slot width and 60mm slot depth design, supports NPN/PNP output optional. Users can choose 2m 3-core cable or 25cm cable + M8 connector connection method according to their needs, which is flexible to install. The label sensor uses infrared light (940nm) as the light source and has high-precision label detection capabilities.

Ultrasonic Label Sensor for Labeling Machine

$895.71

SKU: ATO-LABEL-03C

This ultrasonic label sensor is designed for high-speed, high-precision label detection in various labeling machines. Utilizing powerful ultrasonic technology, label detection sensor reliably detects transparent, non-transparent, metallic, and other challenging labels, unaffected by color, pattern, or ambient light. With a rapid response time of 250 µs, it ensures excellent process stability and is ideal for demanding industrial applications.

Universal Label Sensor for Transparent/PVC/Paper

$498.12

SKU: ATO-LABEL-300S

High-quality and low-cost universal label sensor has a precision of ±0.2mm, which can accurately detect transparent, non-transparent, PVC and paper labels. Label detection sensor is equipped with NPN/PNP dual output, featuring fast response and high precision, and is suitable for various industrial scenarios.

Label Gap Sensor for Non-Transparent Detection

$120.15

SKU: ATO-LABEL-03S

This label gap sensor is designed for high-speed, precise detection of non-transparent adhesive labels in packaging and labeling applications. Gap sensor for label features a rapid response time of 0.1ms and a maximum switching frequency of 10kHz, ensuring reliable performance even at high line speeds. The gap sensor for label helping to minimize missed labels and enhance production efficiency.

Digital Clear Label Sensor for Automated Labeling

$318.28

SKU: ATO-LABEL-100S

Digital clear label sensor adopts differential capacitance detection, with a positioning accuracy of 0.2mm and a switching frequency of 5KHz. Label detection sensor can accurately and quickly detect transparent, paper, and PVC composite labels, and is suitable for various automatic and semi-automatic labeling equipment.

Capacitive Label Detection Sensor, NPN+PNP Output

$302.94

SKU: ATO-LABEL-100

This capacitive label detection sensor utilizes differential capacitance technology to reliably identify the presence of various labels, including challenging transparent, non-transparent, paper, and PVC composite types. The labeling machine sensor features automatic sensitivity setup via a self-learning function and provides both NPN and PNP dual outputs for maximum compatibility with different control systems.

Label Eye Sensor, NPN.NO/NC, PNP.NO/NC

$89.34

SKU: ATO-LABEL-2104

Low-cost label eye sensor is for sale now. It uses 940um infrared modulated light, with a slot width of 2mm and a slot depth of 40mm, enabling accurate detection of non-transparent labels. Label detection sensor offers two optional output modes: NPN/PNP, with a response time of only 50us, ensuring efficient and sensitive detection.

What is a Label Sensor?

A label sensor is a smart, U-shaped slot switch that acts as an automated eye to detect the exact gaps between stickers on a roll. By constantly measuring the thickness or light changes as the label web passes through its fork, the sensor signals the packaging machine exactly when a label begins and ends. This ensures every single sticker is applied to your bottles, boxes, or pouches with absolute precision, preventing wasted materials and costly line shutdowns.

Why Buy Label Sensors from ATO?

Finding the right sensor shouldn't be a frustrating corporate hassle. Here is why DIYers, independent engineers, and small shop owners choose ATO over overpriced industrial giants:

Feature / Benefit	ATO Label Sensors	Traditional Brands	Why It Saves You Headaches
Pricing & Checkout	Instant Online Pricing No hidden fees. Transparent prices listed right on the page with a 1-click "Add to Cart" button.	Quotation Walls Forces you to fill out lengthy corporate forms and wait days just to get a price via email.	No sales reps, no haggling. You buy exactly what you see instantly, just like standard Amazon-style e-commerce.
Order Minimums	MOQ = 1 Piece We happily ship a single sensor for your prototype, hobby project, or quick replacement.	Bulk Orders Only Often refuse small orders or force you to buy through expensive local corporate distributors.	Perfect for small projects. Buy only what you need, when you need it, without being forced into bulk minimums.
Easy Setup	2-Second Auto-Teach Press one digital button, and the sensor automatically calibrates to your labels.	Manual Tuning Requires tiny screwdrivers, manual sensitivity dials, and expert engineering knowledge.	Zero frustration. You don't need a degree in automation to get this sensor working perfectly out of the box.
Wiring Compatibility	Universal NPN/PNP Switching Auto-detects and switches polarity to match your existing controller setup.	Rigid Part Numbers If you buy the wrong model (NPN instead of PNP), it won't work, and you have to return it.	Bulletproof ordering. Even if you aren't 100% sure about your PLC wiring, this sensor has you covered.
Support & Documentation	Free Digital Guides Instant access to clear English manuals, 3D CAD models, and direct email technical support.	Locked Behind Portals Manuals are hard to find or require a corporate customer account to even download.	Full control over your project. Everything you need to install, wire, and mount your sensor is instantly accessible.

How to Choose a Label Sensor?

Don't let complex technical jargon slow your project down. Use our quick, easy-to-read matrix below to instantly match the perfect label sensor tech to your specific label materials.

What Material Are You Labeling?	Recommended Technology	ATO SKU	Key Technical Spec	Your Quick Benefit
Clear-on-Clear (Transparent) Metallic Foils, Heavily Printed Webs	Ultrasonic (Acoustic)	ATO-LABEL-03C	3mm Slot, 250 µs lightning-fast response, blind to colors/patterns.	Zero skipped stickers on transparent beverage bottles or high-end cosmetics.
Clear, Paper, or PVC (Frequent changeovers)	Universal Hybrid	ATO-LABEL-300S	±0.2mm high precision, NPN/PNP dual output, budget-friendly.	Ultimate versatility. Run any standard material on a single packaging line.
Challenging Transparent / PVC (Wants easy setup)	Capacitive (Self-Learning)	ATO-LABEL-100	Self-learning auto-teach function, NPN+PNP dual output.	No manual tuning. Tap one button and the sensor calibrates itself instantly.
Standard Opaque Paper (High-speed sorting)	Optical Gap (High Speed)	ATO-LABEL-03S	0.1ms fast response, 10kHz max switching frequency.	Zero missed labels on fast-moving e-commerce shipping boxes or logistics lines.
Standard Opaque Paper (Deep insertion depth)	Photoelectric (Infrared)	ATO-LABEL-TR03	3mm Slot Width, 60mm Slot Depth, 940nm Infrared light source.	Perfect for wider label rolls or machines needing extra mechanical clearance.
Standard Opaque Paper (Tight spaces / Compact)	Optical Eye (Ultra-Fast)	ATO-LABEL-2104	2mm Slot Width, 40mm Slot Depth, Ultra-fast 50µs response time.	Snaps into compact tabletop labeling machines and space-constrained brackets.
Digital Clear & Composite	Digital Capacitive	ATO-LABEL-100S	0.2mm positioning accuracy, 5kHz digital switching frequency.	Delivers pinpoint accuracy for automatic and semi-automatic labeling machinery.

Industrial Applications & Specific Model Recommendations

Clear Bottling Labels: Use ATO-LBS-US03 to instantly detect clear-on-clear transparent labels that standard optical switches miss.
Pharma & Medical Packing: Deploy ATO-LBS-CP03 for ultra-precise barcode alignment on tiny medical vials and syringes.
Logistics & Warehousing: Trust ATO-LBS-OP05 for a cost-effective, high-speed optical workhorse for standard paper shipping barcodes.
Splice & Web Detection: Use the wide-gap ATO-LBS-US03 to monitor continuous paper webs and flag thick tape joints before they damage printing heads.

Frequently Asked Questions (FAQ)

Have questions about wiring your new label sensor or stopping clear stickers from skipping? Check out our quick fixes below to solve common installation headaches and get your machine running flawlessly.

Q1: Can I use an AC sensor instead of a DC label sensor?
A: No. Industrial label detection sensors run on safe, low-voltage DC power (typically 12-24V DC) to ensure the lightning-fast microsecond response times needed for high-speed machinery.

Q2: How does the "Non-Contact" design save money?
A: Because the label roll glides freely through the sensor's open slot without physically rubbing against it, there is zero mechanical wear and tear, meaning the sensor lasts for millions of cycles without maintenance.

Q3: What is the maximum line speed these sensors can handle?
A: ATO optical and ultrasonic models can easily process labels on webs moving at speeds up to 180 to 200 meters per minute, keeping up with the fastest modern bottling lines.

Q4: Are mounting brackets included with the sensor?
A: Yes, all ATO slot sensors come standard with standard threaded mounting holes and basic hardware for easy integration onto your existing labeling arm.