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.
ValenID · valenid.com · sales@valenid.com
QC-120 Mullion IP67 QR Code & 13.56 MHz Reader with Touch Keypad
Narrow 138 × 58 mm mullion reader that scans QR codes and 13.56 MHz card UIDs through an IP67 glass front, with touch keypad and Wiegand, RS485 and USB outputs.
- 138 × 58 × 22.67 mm mullion profile for door frames and narrow gate posts
- Scans paper and phone-screen QR codes at 5–18 cm with ~100 ms average decode time
- Reads 13.56 MHz UIDs: MIFARE Classic, Ultralight, DESFire EV1, NTAG, ISO/IEC 15693, NFC phones
- IP67 glass front and metal frame with touch keypad under the glass
- Wiegand, RS485 (active upload) and USB outputs; buzzer and LED control lines
- Form factor
- Mullion, 138 × 58 × 22.67 mm
- Credentials
- QR / 1D codes + 13.56 MHz card UID
- Outputs
- Wiegand, RS485, USB
- QR read range
- 5–18 cm
- Ingress rating
- IP67
- Power
- 12 V DC ±5%, ≤ 200 mA
Reply within 24 hours Tested before dispatch Worldwide shipping
Mullion IP67 QR Code & 13.56 MHz Reader with Touch Keypad: overview
The QC-120 is a mullion QR code reader with 13.56 MHz card reading and a touch keypad, all in a 138 × 58 mm IP67 housing. It is intended for aluminum door frames, glass-door stiles and narrow gate posts where a square reader will not fit, and it hands every read to an existing controller rather than making access decisions itself.
The electronics match the 120 × 80 mm QC-110. A 648 × 488 camera with twin fill lights reads paper and phone-screen QR codes at 5–18 cm, averaging about 100 ms per decode, and accepts codes at any rotation with up to ±45° of tilt. The RF side returns UIDs from MIFARE Classic 1K/4K, MIFARE Ultralight, MIFARE DESFire EV1 and NTAG cards, other ISO/IEC 14443A cards, ISO/IEC 15693 tags and NFC phones emulating a card. Glass panel and metal frame are sealed to IP67.
Integration notes
Connect D0/D1 to the controller's Wiegand input, or run RS485, which can push each read to the host without being polled. USB is available through a Mini USB port and a 1,500 mm cable. Supply 12 V DC ±5% (under 200 mA).
The lead includes buzzer and LED control wires for controller-driven feedback; the yellow wire is not connected. For a keyless mullion reader, see QC-140.
More features
- Runs on 12 V DC ±5% at ≤ 200 mA
QC-120 specifications
RF & credentials
| Frequency | 13.56 MHz |
|---|---|
| Cards (UID read) | MIFARE Classic 1K/4K (S50/S70), MIFARE Ultralight, MIFARE DESFire EV1, NTAG, CPU cards, other ISO/IEC 14443A cards, ISO/IEC 15693 cards |
| NFC phones | Card-emulation mode (UID) |
| Card read distance | More than 5 cm (varies with card type) |
QR & barcode scanning
| Code sources | Printed (paper) and on-screen (electronic) codes |
|---|---|
| Symbologies | QR Code, Data Matrix, PDF417, UPC-A, UPC-E (E0/E1), Code 11, Code 39, Code 93, Code 128, Codabar, Interleaved 2 of 5, Matrix 2 of 5 |
| QR read distance | 5–18 cm (depends on code, scan angle and ambient light) |
| Decode time | 100 ms (average) |
| Presentation angle | 360° rotation, ±45° tilt |
| Field of view | 34° (H) × 26° (V) |
| Sensor resolution | 648 × 488 pixels |
| Illumination | Dual fill lights |
Interfaces
| Access control output | Wiegand (D0/D1) |
|---|---|
| Serial | RS485, with active-upload mode |
| USB | Mini USB port; USB-to-Mini-USB cable, 1,500 mm |
| Feedback control | Buzzer and LED control wires |
| Keypad | Touch keys under the glass panel |
Electrical
| Supply voltage | 12 V DC ±5% |
|---|---|
| Current | ≤ 200 mA at 12 V; ≤ 500 mA from USB 5 V |
Mechanical & environment
| Dimensions | 138 × 58 × 22.67 mm (±0.3 mm) |
|---|---|
| Housing | Full metal mullion frame, glass front panel |
| Ingress protection | IP67 |
| Operating temperature | –10 to +50 °C |
| Storage temperature | –20 to +80 °C |
| Operating humidity | 20–80% RH |
Wiring (flying lead)
| Wire color | Signal |
|---|---|
| Red | +12 V DC |
| Black | GND |
| White | Wiegand D1 |
| Green | Wiegand D0 |
| Purple | Buzzer control (BEEP) |
| Gray | LED control |
| Blue | RS485+ |
| Orange | RS485− |
| Yellow | Not connected |
Metal-frame QR reader series
| SKU | Housing | Touch keypad | Outputs | Ingress |
|---|---|---|---|---|
| QC-110 | 120 × 80 × 22.67 mm | Yes | Wiegand, RS485, USB | IP67 |
| QC-120 | 138 × 58 × 22.67 mm (mullion) | Yes | Wiegand, RS485, USB | IP67 |
| QC-130 | 120 × 80 × 22.67 mm | No | Wiegand, RS485, USB | IP67 |
| QC-140 | 138 × 58 × 22.67 mm (mullion) | No | Wiegand, RS485, USB | IP67 |
Same scanner, card reader, outputs and IP67 rating; choose by housing and keypad.
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 |
|---|---|---|
| QC-120-M-K | 138 × 58 mm metal mullion with touch keypad; QR codes + 13.56 MHz UID; Wiegand, RS485 (active upload) and USB |
Where the QC-120 is used
- Glass-door office entrances with narrow aluminum stiles
- Turnstile and speed-gate posts that only have room for a slim reader
- Residential lobby doors where residents use cards and visitors show a QR pass
- Outdoor side gates that need an IP67 reader in a mullion format
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.
Turnstile & Speed-Gate Readers: QR, RFID and Face
Turnstile card readers, QR scanners and face terminals for tripod, swing and speed gates, with Wiegand, RS485, RS232 or TTL output to the gate board.
QC-120 FAQ
Will a 138 × 58 mm reader fit my door frame?
The QC-120 needs a mounting face at least 58 mm wide and 138 mm tall, and the housing is 22.67 mm deep. If you have a wider surface, the 120 × 80 mm QC-110 offers the same scanner, card reader and keypad.
Can the controller drive the reader LED and beeper?
Yes. The lead includes a buzzer control wire (purple) and an LED control wire (gray), so a controller with those outputs can signal grant or deny at the door.
How does RS485 active upload work?
In active-upload mode the reader sends each card or QR read over RS485 as soon as it happens, so the host software does not need to poll it.
Does it read QR codes from phone screens?
Yes. Both printed and on-screen QR codes are read, typically at 5–18 cm, with an average decode time of about 100 ms.
Does it read 125 kHz proximity cards?
No. The QC-120 is a 13.56 MHz reader. It reads MIFARE Classic, MIFARE Ultralight, MIFARE DESFire EV1, NTAG and ISO/IEC 15693 UIDs, but not 125 kHz EM or HID Prox cards.
Before you buy
Related buyer guides
Wiegand vs OSDP vs RS485: Which Reader Interface Should You Specify?
Compare Wiegand, OSDP and RS485 reader interfaces: wiring, cable limits, AES-128 Secure Channel and steps for a compatible access-control migration.
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.
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.
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Get pricing for the QC-120
Send your card type, interface and quantity. You get a quote, lead time and compatibility notes within 24 hours — samples available for most items.