Can each fob have a different number?

Yes. We can print or laser engrave unique serial numbers, UID numbers, barcodes, or QR codes on each fob.

Can you encode data before shipment?

Yes. We can encode UID list, URL, serial number, text, or customer-provided data before shipment.

Can you guarantee compatibility with my system?

Compatibility depends on chip type, frequency, protocol, reader, and encoding format. We recommend confirming your system details before bulk production.

Is the epoxy key fob waterproof?

The epoxy surface provides good daily water resistance and protects the printed design from normal wear.

Can you provide samples?

Yes. Samples are available for chip testing, printing confirmation, and system compatibility checking.

Waterproof RFID Keyfob Access Control Key Fob with 125kHz Tk4100/Em4100 Chip

Name: Waterproof RFID Keyfob Access Control Key Fob with 125kHz Tk4100/Em4100 Chip
Brand: Fortune Smart Tag Co., Limited
SKU: 1997041911

Guangdong, ChinaFortune Smart Tag Co., Limited

US$0.10-0.30

500 Pieces

Sample price:US$65.00/piece.Request sample

Product profile

Customization

Available

Function

Identification, Payment, Encrypt/Decrypt, Information

Type

Smart Card

Model NO.

Key Fob 001

Material

PVC

Read-Write Method

Non-Contact Type

Label Category

Passive

Structure

Read-only Card

Application Field

RFID Keyfob

Power Supply Mode

Passive Card

Frequency

Low Frequency

Data Transmission Mode

Serial

Item Name

RFID Keyfob

Thickness

0.84-0.86mm or Custom

Custom Service

Logo Printing/Size/Chip/Encoding Data

Certificate

CE / RoHS

Protocol Standard

ISO14443A

Transport Package

Carton

Specification

85.5mm*54mm or Customized

Trademark

N/A

Origin

Shenzhen, China

Production Capacity

10, 000, 000 Pecies Per Month

Key features

Secure Access Control Suitable for apartments, gyms, hotels, offices, pools, storage areas, and staff access management.

LF and HF Chip Options Available with 125KHz proximity chips and 13.56MHz MIFARE, NTAG, and NFC chip options.

Durable Epoxy Surface Glossy epoxy coating protects the printed design and improves daily wear resistance.

Custom Logo Printing Support full-color logo printing, PMS color matching, QR code, barcode, UID, and serial number.

Laser Engraved Number Laser numbering provides long-term readability for access control and membership tracking.

Easy to Carry Compact key fob design is convenient for key rings, lanyards, staff badges, and member use.

Pre-Encoded Service UID, URL, serial number, or customer data can be encoded before shipment.

OEM Bulk Production Custom mold, private label, sample testing, and bulk production are available for distributors.

Company profile

High Repeat Buyers ChoiceQuality Assurance100% Finished Products InspectionFast Delivery

Fortune Smart Tag Co., Limited

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2015-01-01 CertifiedNearest Port: shenzhen portAverage Response Time: ≤1.74h

AI-Powered supplier vetting

SummaryThe supplier is a combined company engaged in IoT, electronics, security and related manufacturing and sales activities. It reports direct cooperation and technical co-development with NXP, Impinj and Alien, and states that products operate reliably from -40°C to 85°C. The supplier offers broad customization, ODM services, and reports new products within the past year. Manufacturing evidence includes a 2,151.0 m² plant and standardized finished-product inspection procedures. Service management procedures cover supplier assessment, corrective and preventive actions, and customer complaints. However, no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported; the supplier also lacks an available SDK and does not provide OEM services for well-known brands. Financial credibility, certifications, and customer cases cannot be sufficiently judged from the provided information.

Supplier typeThe supplier is identified as a combined company with business activities covering IoT device manufacturing and sales, vehicle-mounted equipment, commercial cryptographic products, electronics, security and related product categories. Its stated business scope and commercial trade categories indicate a manufacturer-trader profile rather than a narrowly specialized service provider.

After-Sales capabilityThe supplier has written and followed procedures for customer complaints, corrective and preventive actions, and service-capability assessment. However, it reports no overseas warehouse, showroom, agent, branch, or offline trade-show participation, and lists zero countries where overseas services are offered; this indicates documented service processes but limited demonstrated overseas service coverage.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and maintains direct cooperation and technical co-development with NXP, Impinj and Alien to optimize product performance. It also reports no available SDK, which limits evidence of software-development support, but the product-development and co-development information supports innovation capability overall.

Production capacityThe supplier reports a 2,151.0 m² manufacturing plant, standardized and consistently followed finished-product inspection instructions, and stable product performance in environments from -40°C to 85°C. These details provide explicit evidence of manufacturing infrastructure and production-quality controls.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. The breadth of listed options indicates strong demonstrated customization coverage.

Client casesThe supplier states that it maintains long-term stable direct cooperation with global semiconductor leaders NXP, Impinj and Alien, including authorized distribution and technical co-development. These named relationships constitute evidence of notable business references, although the slices do not provide project scope, order history, or independently verifiable case details.