Hikvision DS-K7M102-M-25 Mifare Key Fob 25-Pack
Overview
The Hikvision DS-K7M102-M-25 ships 25 durable Mifare key fobs designed for personnel identification and access control across corporate offices, facilities, educational institutions, and multi-tenant commercial properties. Operating at the industry-standard 13.56 MHz frequency, these fobs deliver encrypted credential transmission to compatible readers—eliminating the risk of unauthorized cloning or tampering that can plague older magstripe or proximity systems. Each fob measures 26 × 50 × 4 mm and weighs under 10 grams, making them easy to attach to keychains, lanyards, or badge holders without added bulk. The PVC construction with AB glue assembly withstands daily pocket wear and environmental stress across a wide operating temperature range.
Key Features
- 13.56 MHz Mifare Standard: Industry-standard frequency ensures rapid data transmission with minimal read delay—typically under 100 milliseconds per credential scan. This speed matters in high-traffic entry points where queuing frustrates both users and security staff.
- Read/Write Programmable Memory: Unlike write-once credential systems, these fobs accept field updates and reconfiguration. You can reassign credentials, add new permissions, or refresh encryption keys without replacing hardware—a significant cost saver over multi-year deployments.
- Advanced Encryption Protection: Mifare Classic (and higher-tier Mifare variants) encrypt credential data against cloning. Standard proximity cards offer no such protection; this fob actively resists replay and eavesdropping attacks common in unsecured access systems.
- 4 cm Effective Read Range: Short read distance (roughly 1.6 inches) requires deliberate card presentation at the reader. This proximity requirement eliminates accidental reads and unauthorized interception from a distance, a real security advantage over long-range RFID systems.
- Compact 26 × 50 × 4 mm Form Factor: Fits standard keychain loops and badge clips without bulge. Slim profile is especially valuable in high-density deployments—visitor centers, educational campuses, and event venues where dozens of staff manage hundreds of temporary credentials.
- Extended Temperature Operating Range (-10 °C to 50 °C / 14 °F to 122 °F): Survives both unheated outdoor storage areas and sun-exposed entry vestibules without performance degradation. If your deployment spans climate zones or seasonal extremes, this thermal tolerance eliminates batch failures from temperature stress.
- White and Red Dual-Color Scheme: Color coding enables rapid visual sorting, access level categorization, or temporary vs. permanent credential distinction—useful when managing large credential pools manually or during access control audits.
- 25-Unit Bulk Pack: Eliminates per-unit reorder overhead; sufficient for small-to-medium facility roll-outs or refreshes. Reduces administrative burden of individual credential provisioning.
Integration and Compatibility
The DS-K7M102-M-25 integrates with Hikvision access control systems and any third-party reader or access control panel supporting Mifare 13.56 MHz credentials. Confirm reader compatibility before bulk procurement—not all older magnetic stripe or proximity systems auto-support Mifare without firmware or reader replacement.
What's in the Box
- 25 × Hikvision DS-K7M102-M Mifare Key Fobs (White and Red)
Frequently Asked Questions
Q: What is the reading distance on the DS-K7M102-M-25 fobs?
A: The effective read range is 4 cm (approximately 1.6 inches). This short distance requires deliberate card presentation at the reader and prevents unauthorized reads from a distance.
Q: Can these fobs be reprogrammed after initial deployment?
A: Yes. The DS-K7M102-M-25 fobs feature read/write capability, allowing field updates, permission changes, and encryption key refreshes without hardware replacement.
Q: Are the DS-K7M102-M-25 fobs resistant to cloning?
A: The Mifare encryption standard protects credential data against unauthorized cloning and tampering. Standard proximity cards offer no such protection—these fobs actively defend against replay and eavesdropping attacks.
Q: Will the DS-K7M102-M-25 fobs work in cold or hot environments?
A: Yes. The fobs operate reliably across -10 °C to 50 °C (-40 °F to 122 °F), making them suitable for both unheated outdoor areas and sun-exposed entry vestibules.
Q: Do I need a special reader for DS-K7M102-M-25 compatibility?
A: The fobs work with any Hikvision access control system and third-party readers supporting Mifare 13.56 MHz credentials. Verify reader compatibility with your access control vendor before procurement to confirm firmware or hardware compatibility.
Q: How many fobs are in each package?
A: Each DS-K7M102-M-25 pack contains exactly 25 Mifare key fobs, suitable for small-to-medium facility deployments or credential refreshes.
The Hikvision DS-K7M102-M-25 (sometimes searched as DS K7M102 M 25) is a practical bulk credential choice for facilities standardizing on encrypted Mifare access control. The 4 cm read distance and 13.56 MHz frequency strike a reasonable balance between security—encryption prevents cloning—and usability. The read/write capability is where these fobs earn their place: you can reassign or update permissions in the field without replacing hardware, a meaningful cost advantage in multi-year deployments spanning dozens or hundreds of personnel changes.
Technical Highlights:
- 13.56 MHz Mifare Encryption: Unlike magstripe or unencrypted proximity credentials, Mifare actively resists cloning and replay attacks. In a facility with 50+ active employees, this defense against credential theft eliminates a real attack vector—counterfeit badges or lost credentials intercepted and duplicated.
- 4 cm Read Distance with Encryption: Short-range access requirement means unauthorized interception from a distance is not feasible. Compare this to long-range RFID systems (10+ meters) where eavesdropping readers can passively harvest credentials from across a parking lot—this fob eliminates that risk by design.
- Read/Write Field Programmability: No need to order new fobs when a visitor's access level changes or an employee departs. Field reprogramming reduces credential lifecycle cost by 30–50% versus write-once systems that force hardware replacement on every permission update.
- -10 °C to 50 °C Operating Range: If any entry points are unheated (loading docks, outdoor vestibules, seasonal outdoor storage), this thermal tolerance ensures consistent performance across your entire facility without seasonal credential failures.
Deployment Considerations:
- Reader Compatibility Verification: Not all existing access control readers support Mifare 13.56 MHz—if you're retrofitting a facility with older HID or magstripe infrastructure, confirm firmware or reader replacement costs before committing to a 25-pack. Hikvision readers and most modern third-party systems handle Mifare, but legacy systems may not.
- Bulk Pack Commitment: The 25-unit pack eliminates per-unit reorder overhead but assumes you have a defined deployment scope. If your facility headcount or access structure is in flux, ordering a single pack and then 6-8 packs over a year spreads procurement friction—order once if your personnel roster is stable.
- Color Coding Workflow: The white and red dual-color scheme is useful for rapid visual categorization—temporary vs. permanent access, vendor credentials vs. employee badges, or multi-facility color-coding. Leverage this distinction in your provisioning workflow; it accelerates audit and access level verification.
Position the DS-K7M102-M-25 for small-to-medium corporate deployments, educational campuses, and multi-tenant facilities where encrypted credential security matters, read/write reprogramming reduces lifecycle cost, and a 25-unit pack matches your deployment scope. Skip this if you require long-range RFID (for vehicle or asset access, 10+ meter range) or if your facility is locked into legacy magstripe infrastructure without reader replacement budget.
