Compact design
A slim 13.1 mm profile fits narrow panels, validators and handheld terminals.


01Overview
The EM20 is a 27 g embedded reader measuring 55 × 33.4 × 13.1 mm, built to sit behind a window in a kiosk, gate or payment terminal. A 72° × 54° field of view lets users present a code without careful positioning.
It reads payment and ticket codes from phone screens as well as printed labels, in ambient light from darkness up to 100,000 lux. Status lighting is white while reading and green on success, and the RGB colour can be customized to match your product.
02Key features
A slim 13.1 mm profile fits narrow panels, validators and handheld terminals.
USB HID or virtual serial, TTL serial and RS485 cover most controllers.
Reads codes on the move as users walk past a gate or validator.
Tuned for mobile payment and e-ticket codes shown on phone displays.
03Specifications
Values marked * depend on test conditions. Refer to the datasheet for details.
| imaging sensor | 640×480CMOS | |
|---|---|---|
| lighting | Default: white for working state, green for success; customizable RGB color | |
| Symbologies | 2D | PDF417,DataMatrix,QRCode,HanXin,AZTEC, maxicode |
| 1D | EAN-13, EAN-8, UPC-A, UPC-E, Code 39, Code 128, ISBN, Code 93, Code 11, UCC/EAN-128, GS1 Databar, Interlea- ved 2 of 5, Matrix 2 of 5, Industrial 2 of 5, Coda bar, Standard 2 of 5, MSI-Plessey, GS1 composite code, etc | |
| Reading accuracy * | 1D≥5mil2D≥7mil | |
| Typical reading depth of field * | 25-170mm Alipay payment code | |
| 35-145mmEAN1313mil | ||
| Contrast of symbols* | ≥20% | |
| Barcode sensitivity** | Tilt ±55°, deflection ±55°, rotation 360° | |
| Field of view Angle | Horizontal 72°, vertical 54° | |
| communication interface | USB (optional, HID, virtual serial port), TTL serial port, RS485 |
|---|---|
| Outer dimension (mm) | 55(D)×33.4(W)×13.1Max(H) |
| weight | 27g |
| working voltage | Default: 5V Customizable 3.3V power supply |
| rated current | (Typical value) less than 220mA (5V input) |
| working temperature | -20℃~+60℃ |
|---|---|
| storage temperature | -40℃~+70℃ |
| Working humidity | 5%~95% (no condensation) |
| Environmental lighting | 0~100,000LUX |


04Applications
Downloads & support
EM20 datasheetPDF documentNeed an SDK, configuration tool, 3D model or samples? Our application engineers will send what your project needs.
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