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AJAX 42851.90.WH Contactless Key Fob, 10-Piece, White

SKU: 4285190WH MPN: 42851.90.WH AJAX

Special Order: typically 2–6 weeks

Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.

Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.

A member of our team will check with the manufacturer and personally reply by email.

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Product images for AJAX 42851.90.WH Contactless Key Fob, 10-Piece, White. 4 image(s) available. Click on image to view full size.

Key Features

  • Rapid, contactless arming/disarming: present the Tag to a KeyPad Plus reader to change security modes without entering a code
  • Enterprise-grade DESFire® 128-bit encryption protects credentials and prevents cloning for reliable site security
  • Scales across sites: one Tag can pair with up to 13 control panels for multi-door or multi-location deployments
  • Pack of 10 white key fobs streamlines rollout for offices, retail, property management and system integrators
  • Long service life (up to 10 years) cuts replacement costs and reduces maintenance overhead
  • Real-time access management and event logging let administrators revoke or modify permissions instantly for better monitoring and compliance

Quick Specifications

Product Model
42851.90.WH
Brand Name
AJAX
Product Name
Key Fob
Product Type
Key Fob
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Product information

42851.90.WH

Overview

Streamline access control and everyday security operations with the AJAX Contactless Key Fob — a business-ready solution for fast, secure arming and disarming. This 10-piece pack of white Tag key fobs pairs with KeyPad Plus panels to give employees and contractors convenient proximity access without sharing codes or app credentials. Built on DESFire® contactless technology with 128-bit encryption and copy-protection, these fobs deliver enterprise-grade protection against cloning—ideal for integrated security, surveillance and monitoring environments.

Each Tag can be assigned to up to 13 Ajax control panels, making the set suitable for multi-door sites, branch offices, or managed properties. Administrators can name devices, set access permissions, and instantly revoke or restrict access in real time; every action is recorded in the event log for audit and compliance. With a service life up to ten years and hybrid installation compatibility, these contactless key fobs reduce lifecycle costs and simplify large deployments.

Ideal for security integrators, facility managers and IT teams—add this AJAX Contactless Key Fob 10-pack to your access control toolkit to improve security, simplify monitoring and accelerate installations.

Features

  • Rapid, contactless arming/disarming: present the Tag to a KeyPad Plus reader to change security modes without entering a code
  • Enterprise-grade DESFire® 128-bit encryption protects credentials and prevents cloning for reliable site security
  • Scales across sites: one Tag can pair with up to 13 control panels for multi-door or multi-location deployments
  • Pack of 10 white key fobs streamlines rollout for offices, retail, property management and system integrators
  • Long service life (up to 10 years) cuts replacement costs and reduces maintenance overhead
  • Real-time access management and event logging let administrators revoke or modify permissions instantly for better monitoring and compliance
10 of 10 specifications
Technical specifications for AJAX 42851.90.WH Contactless Key Fob, 10-Piece, White
General Information
Brand Name AJAX
Manufacturer AJAX SYSTEMS CH
Product Name Key Fob
Product Type Key Fob
Packaged Quantity 10
Manufacturer Part Number 42851.90.WH
Physical Characteristics
Color White
Product Information
Installation Type Hybrid
Miscellaneous
Features Contactless
Country of Origin UA

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SKU:
4285190WH
Manufacturer part:
42851.90.WH
How do I confirm compatibility?

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When will this item ship?

Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.

Shipping, freight and delivery details
What should I know about returns?

Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.

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AJAX 42851.90.WH Contactless Key Fob, 10-Piece, White

42851.90.WH

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