ValenID · valenid.com · sales@valenid.com

SUS304 Metal RFID Key Fob — product view 1

CA-190 SUS304 Metal RFID Key Fob

Stainless-steel and ABS key fobs with five chip configurations, including DESFire EV3; listed read distance is 0–3 or 0–4 cm by chip.

SUS304 stainless-steel and ABS enclosure
TK4100, FM11RF08, S50, CPU and DESFire EV3 chip options
49.2 × 38 × 6.9 mm listed dimensions, ±0.5 mm
Chip-dependent reading distance of 0–3 cm or 0–4 cm
–40 to +70 °C listed operating temperature

Materials: SUS304 stainless steel / ABS
Frequency: 125 kHz or 13.56 MHz
Dimensions: 49.2 × 38 × 6.9 mm ±0.5 mm
Read distance: 0–3 cm / 0–4 cm by chip
Operating temperature: –40 to +70 °C
Warranty: 1 year

Reply within 24 hours Tested before dispatch Worldwide shipping

SUS304 Metal RFID Key Fob: overview

CA-190 is a metal RFID key fob built with SUS304 stainless steel and ABS for access and identification systems. The listed body measures 49.2 × 38 × 6.9 mm, with a stated ±0.5 mm tolerance. Its compact format is suited to a key ring, while the silver-and-black appearance is documented for the standard chip configurations.

Choose among five credential builds: 125 kHz TK4100, 13.56 MHz FM11RF08, MIFARE Classic S50, FM1208 CPU or DESFire EV3. These alternatives share the enclosure but have different memory and application behavior. The two frequency bands are choices within the family, rather than proof that one key fob contains a dual-frequency chip.

The Classic-compatible and S50 options each list 1,024 bytes in sixteen sectors. The CPU configuration lists 8K × 8-bit EEPROM, while the DESFire EV3 option lists 2K EEPROM. TK4100 has no writable application memory stated. Select the build that matches both the reader and the issuing software, including any application keys or data layout required by the installation.

The chip-dependent read figures are 0–4 cm for TK4100 and the Classic configurations, and 0–3 cm for the CPU and DESFire builds. Operation is listed at –40 to +70 °C, with more than ten years of data retention and a one-year warranty. The product is described as water resistant, but no IP grade is supplied for the enclosure.

More features

One-year warranty; RoHS listed for documented configurations

CA-190 specifications

RF & memory

Frequency	125 kHz or 13.56 MHz, by chip
Chip options	TK4100; FM11RF08; MIFARE Classic S50; FM1208 CPU; DESFire EV3
Classic memory	1,024 × 8-bit EEPROM, 16 sectors
CPU memory	8K × 8-bit EEPROM
DESFire EV3 memory	2K EEPROM as listed
TK4100 application memory	None stated
Read distance	0–4 cm for TK4100/FM11RF08/S50; 0–3 cm for CPU/DESFire EV3
Data retention	More than 10 years
Write endurance	More than 100,000 cycles for writable configurations

Enclosure & environment

Materials	SUS304 / ABS
Dimensions	49.2 × 38 × 6.9 mm ±0.5 mm
Documented finish	Silver and black
Operating temperature	–40 to +70 °C
Compliance statement	RoHS listed; request supporting documentation
Warranty	1 year

Specifications can change between production batches. Confirm the current revision with us before placing volume orders.

Ordering options

Quote the SKU that matches your frequency, interface and mounting. Not sure? Send us your controller model and we will pick the variant for you.

SKU	Configuration	Actions
CA-190-E	125 kHz TK4100 key fob, 0–4 cm listed distance
CA-190-M-F08	13.56 MHz FM11RF08 key fob, 1K memory, 0–4 cm
CA-190-M-S50	13.56 MHz MIFARE Classic S50 key fob, 1K memory, 0–4 cm
CA-190-MS-CPU	13.56 MHz FM1208 CPU key fob, listed 8K memory, 0–3 cm
CA-190-MS-EV3	13.56 MHz DESFire EV3 key fob, listed 2K memory, 0–3 cm

Where the CA-190 is used

Resident access credentials carried with keys
DESFire-compatible membership credentials
Replacement metal fobs for a qualified installed reader

Residential

Apartment, Multifamily & Rental Property Access Control

Apartment building access control hardware: anti-clone readers with matched fob sets, QR visitor codes, 4G controllers for rentals and UHF tags for gates.

Elevators

Elevator Access Control Readers

Elevator card readers for car panels and lift lobbies: anti-clone encrypted cards, QR codes for visitors, Wiegand or RS485 output to the floor controller.

Fitness

Gym & 24/7 Fitness Club Access Control Hardware

Gym access control system hardware for 24/7 clubs: fob and wristband readers, face and QR terminals, anti-passback controllers and no-touch exit buttons.

CA-190 FAQ

Does the same key fob read at both frequencies?

The five documented chip builds are alternatives. TK4100 uses 125 kHz, while the other choices use 13.56 MHz; a dual-frequency build is not stated.

Which memory comes with the DESFire version?

The DESFire EV3 option lists 2K EEPROM. Confirm the application configuration and keys needed by the reader system.

How far does it read?

The listed distance is 0–4 cm for TK4100, FM11RF08 and S50, and 0–3 cm for the CPU and DESFire EV3 configurations.

What is the body material and temperature range?

The enclosure uses SUS304 stainless steel and ABS. The listed operating range is –40 to +70 °C.

Before you buy

Related buyer guides

comparison

125kHz vs 13.56MHz: Choosing Access Cards and Readers

125 kHz cards are cheap but easy to clone; 13.56 MHz cards add memory and, on DESFire-class chips, AES security. Compare range, chips, security and migration.

explainer

Wiegand 26-Bit Format Explained (with a Free Calculator)

Wiegand 26-bit is an even parity bit, 8-bit facility code, 16-bit card number and odd parity bit. Convert card numbers to hex and back with the calculator.

comparison

MIFARE Classic vs DESFire EV2/EV3: Security, Cost and Migration

MIFARE Classic's Crypto1 is broken and its cards can be copied; DESFire EV2/EV3 support AES-128. Compare security, memory and cost, then plan your migration.