Is there any relevant terms of service and warranty information?

We offer a warranty on all items. The sensor products are guaranteed for 15 months, and the light curtain and lidar products are guaranteed for 18 months. For after-sales questions, you can directly contact the product salesperson.

Is there any relevant information available for download on the website?

Yes, if you want to download the relevant product manual, you can go to our official website to download it.

Can I be your reseller?

Yes, we are looking for distributors in overseas markets.

G-Tek Factory Price PF21b Compact Miniature Diffuse Reflective Photo Sensor Optical Switch

Name: G-Tek Factory Price PF21b Compact Miniature Diffuse Reflective Photo Sensor Optical Switch
Brand: TIANJIN G-TEK SENSOR TECHNOLOGY CO., LTD
SKU: 2008720712

Tianjin, ChinaTIANJIN G-TEK SENSOR TECHNOLOGY CO., LTD

US$15.00

50-99 Pieces

US$14.00

100-199 Pieces

US$13.00

200-999 Pieces

US$9.00

1,000+ Pieces

Sample price:US$16.00/piece.Request sample

Product profile

Type

Diffuse Reflection Type Photoelectric Sensor

Output Signal Type

Switching Type

Production Process

Integration

Model NO.

PF21B

Material

Plastic

Feature

Anti-Light Interference

IP Rating

IP67

Certification

Customized

Adjadjustment Distance

150mm

Light Source

940nm Visible Red Light

Output Mode

NPN/PNP Open Collector

Supply Voltage

10-30VDC

Action Mode

Select Product Light-on/Dark-on by Model

Indicator Light

Power Green Indicator, Output Yellow Indicator

Application

Logistics,Conveyor Belt

Response Time

20ms

Transport Package

Standard Carton Box

Specification

21mmx11mmx31mm

Trademark

G-TEK

Origin

Tianjin

HS Code

9032900090

Production Capacity

5000/Month

Key features

Anti-Light Interference: Non-sphere optical lens eliminates stray light with strong light resistance.

IP67 Protection Rating: Integrally formed wiring outlet ensures superior sealing performance.

Multiple Output Options: Select NPN or PNP open collector output modes.

Flexible Action Modes: Choose Light-on, Dark-on, or Light/Dark-on switching by model.

Comprehensive Protection: Built-in reverse polarity, over-voltage, and short-circuit protection.

Wide Sensing Range: Available models cover ranges from 2mm to 900mm.

CE Certified Quality: Product certified with CE and backed by 23 years of industry experience.

Customization Available: Customized options available for specific quantities.

Company profile

Years of Export ExperiencePatents AwardedManagement CertificationProduct Certification

TIANJIN G-TEK SENSOR TECHNOLOGY CO., LTD

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤2.93h CertifiedTerms of Payment: T/T, LC, D/P, etc.

AI-Powered supplier vetting

SummaryG-TEK is an industrial equipment and instrumentation supplier with stated sales of up to 800,000 pieces or sets in 2019 across proximity switches, photoelectric sensors, light curtains, and laser radar. It offers broad customization, reported new products within the past year, and has documented procedures for finished-product inspection, supplier assessment, corrective actions, and complaint handling. Its certifications include ISO9001:2015, ISO45001:2018, ISO14001, and CE capability. The supplier has three production lines, but does not continuously reconcile production quantities for every batch or bulk run. Export experience is established, with 10 years of exporting and three experienced export staff, although overseas operational infrastructure is limited: no overseas warehouse, showroom, agent, or branch is reported. Financial information is only represented by year labels, without substantive performance evidence. No SDK or ODM service is available, and no OEM service for popular brands is reported.

Supplier typeThe stated business scope covers on-board equipment, instruments and meters, intelligent instruments, industrial automatic control systems, and intelligent vehicle-mounted devices. The company description also identifies product sales including proximity switches, photoelectric sensors, light curtains, and laser radar, supporting classification as an industrial equipment and automation-related supplier.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, together with CE product certification capability. These are explicit certification holdings or capabilities relevant to quality, occupational safety, environmental management, and product compliance.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and effective customer complaint handling. However, it reports no overseas warehouse, showroom, agent, or branch; this indicates established complaint-process capability but limited overseas service infrastructure.

R&D capabilityThe supplier reports that it introduced new products during the past year and emphasizes continuous technological innovation. It also supports extensive product customization, but has no available SDK and does not provide ODM services; overall innovation activity is evidenced, while platform-development and ODM capability are limited.

Production capacityThe company reported sales of up to 800,000 pieces or sets in 2019 and operates three production lines. It has standardized finished-product inspection instructions that are uniformly followed, but does not continuously reconcile quantities for every batch or bulk production run, creating a stated production-control weakness.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same broad capability is reported in two slices, providing strong direct evidence of extensive customization support.

Product Q&A

Q:Is the product shipped and arrived fast?

The production cycle for large quantities of products takes 15-30 days, depending on the product.

Q:Can you provide professional advice promptly?

We have a professional technical team that can patiently help you answer all professional questions.

Q:Can you provide customized products/services?

Yes, we can provide customized products, but the customization needs to meet a certain quantity.

Q:How is the quality of the product? Is the quality stable?

G-TEK Sensors has been focusing on the sensor field for 23 years. The quality of the sensor has the double affirmation of the CE certificate and customer reputation.

Q:What is your MOQ?

We offer MOQ per piece; it depends on your specific order.