134.2kHz A520-M
Handheld 134.2kHz FDX-B Microchip Reader, USB / 2.4G / Bluetooth
- USB
- Wireless
- Handheld
Read range: > 8 cm
Handheld & Bluetooth RFID Readers
U520-M Handheld UHF RFID Reader with OLED Display, 0–35 cm
The U520-M is a handheld UHF RFID reader with a ring antenna, one scan button and a 0.91-inch OLED that shows each tag ID. It reads ISO 18000-6C tags at 0–35 cm, keeps up to 128 records and uploads them in real time or as a batch over USB 2.0, 2.4G wireless or Bluetooth.
- Frequency
- UHF 915 MHz band (902–928 MHz)
- Cards / tags
- ISO 18000-6C UHF tags
- Interface
- USB 2.0; 2.4G wireless; Bluetooth
- Output
- Tag ID on screen; real-time upload or batch upload of stored records
- Read range
- 0–35 cm (depends on tag)
- ✓ Sample units for evaluation
- ✓ Output format confirmed for your software
- ✓ Private label & OEM options
- ✓ Reply within 1 business day
Why integrators choose the U520-M
- Tag ID on the device — the 0.91-inch OLED shows each read, so staff can check a tag without a phone or PC nearby.
- Real-time or batch upload — send each read to the host at once, or store up to 128 records and upload them later.
- Wired or wireless upload — USB 2.0 cable, 2.4G wireless receiver or Bluetooth; the links fitted to your units are confirmed in your quotation.
- Ring antenna, one button — reads ISO 18000-6C UHF tags at 0–35 cm, depending on the tag.
- 120 g, battery powered — 3.7 V rechargeable lithium battery; the reader powers off after 120 s idle.
- Display language — English as standard; other languages on request for private-label projects.
Offline tag checks with an OLED handheld
The U520-M suits checks where no host is within reach: a storeroom walk-round, a yard of returnable containers, a tool crib or a rack of IT equipment. The operator aims the ring antenna at the tag, presses the button and reads the ID on the screen. Reads can be kept in memory and uploaded at the end of the round.
Memory holds 128 records, which fits spot checks and short rounds rather than full stock counts. For longer sessions, pair the reader and use real-time upload so each read goes straight to the host. The 0–35 cm range is for pointing at one item at a time; for reads up to 3 m, look at the U550-M. The fixed vs integrated vs handheld guide covers when a handheld is the wrong tool.
U520-M, U510-B or A520-M?
Three readers look alike or overlap, but they answer different needs:
| Model | Reads | How the data reaches you | Read range |
|---|---|---|---|
| U520-M | UHF ISO 18000-6C tags | On the OLED; stored (128 records) or uploaded by USB, 2.4G or Bluetooth | 0–35 cm |
| U510-B | UHF EPC Gen2 tags | Typed into the app on a paired phone, tablet or PC; no screen | 0–50 cm |
| A520-M | 134.2kHz FDX-B and EMID animal tags | On the OLED; stored or uploaded by USB, 2.4G or Bluetooth | Glass tube > 8 cm; 30 mm ear tag > 20 cm |
The A520-M uses the same ring housing, so distributors can offer one look for both item tagging and animal ID. Choose by the tag, not the housing: UHF labels on goods need the U520-M, livestock ear tags and pet microchips need the A520-M.
U520-M specifications
| Model | U520-M |
|---|---|
| Form factor | Handheld with ring antenna, 0.91-inch OLED and one scan button |
| Frequency | UHF 915 MHz band (902–928 MHz) |
| Housing colors | Black or white with blue ring |
| Protocol | ISO 18000-6C |
|---|---|
| Supported tags | ISO 18000-6C UHF tags |
| Read mode | Read-only (tag ID) |
| Read range | 0–35 cm (depends on tag) |
| Read time | < 100 ms |
| Host connections | USB 2.0; 2.4G wireless; Bluetooth |
|---|---|
| Data output | Tag ID on screen; real-time upload or batch upload of stored records |
| Memory | 128 records |
| Display | 0.91-inch high-brightness OLED |
| Display language | English (customizable) |
| Feedback | Buzzer |
| Power | 3.7 V rechargeable lithium battery |
|---|---|
| Auto power-off | After 120 s idle |
| Weight | 120 g |
| Package size | 185 × 120 × 30 mm |
| Operating temperature | -10 °C to +50 °C |
| Storage temperature | -30 °C to +70 °C |
Specifications of U520-M as supplied for the standard version. Read range depends on the card or tag, mounting surface and environment — we can test your own cards before you order.
Card, tag and system compatibility
Works with
- ✓ISO 18000-6C (EPC Gen2) UHF labels and tags: tag ID read at 0–35 cm
- ✓Upload to a host by USB 2.0 cable, 2.4G wireless receiver or Bluetooth
- ✓Offline use: up to 128 stored records for later batch upload
Card not listed? Send us the card type or a photo and we will confirm compatibility before you buy.
Integration in 4 steps
- 1
Charge the built-in 3.7 V battery, switch the reader on and aim the ring antenna at the tag, within 0–35 cm.
- 2
For live data, connect the reader to the host by USB cable, 2.4G receiver or Bluetooth and use real-time upload.
- 3
For offline rounds, read up to 128 tags into memory and upload the batch when you are back at the host.
- 4
Before a rollout, test a sample unit with your own tags and host software to confirm read range and the upload format.
OEM / ODM options for U520-M
- ◆OLED display language changed from English on request
- ◆Housing color: black or white, both with a blue ring
- ◆Bluetooth device name shown during pairing set to your brand, on request
- ◆Host connection (USB 2.0, 2.4G or Bluetooth) agreed per order and confirmed in your quotation
Typical applications
U520-M FAQ
Does the U520-M need a phone or PC to read tags?
No. It reads and shows the tag ID on its 0.91-inch OLED and can store up to 128 records. A host is needed only to receive the data, by USB 2.0, 2.4G wireless or Bluetooth.
What read range should I expect?
0–35 cm, depending on the tag. Small labels, and tags on metal or liquid-filled items, read at shorter distances, so test with your own tags. Our UHF read range guide explains the factors.
Can the U520-M read animal ear tags?
Not 134.2kHz FDX-B tags. The A520-M uses the same ring housing for FDX-B and EMID animal tags; the U520-M reads UHF ISO 18000-6C tags only.
Can the display show my language and brand?
English is standard and the display language can be customized. Language, housing color and the Bluetooth device name for private-label orders are confirmed in your quotation.
Related readers
134.2kHz 
UHF 
UHF 
UHF U550-M
Bluetooth UHF RFID Pistol-Grip Reader with Phone Holder
- USB
- Wireless
- Handheld
Read range: 0–3 m
Tell us your card, interface and quantity
Send the card or tag type, the host system and your volume. We reply within 1 business day with a suggested model and sample options.