> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# GM73 Barcode & QR Code Scanning Module

**Type:** Product page · **SKU:** SEN0544 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gm73-barcode-qr-code-scanning-module.html ([markdown](https://core-electronics.com.au/gm73-barcode-qr-code-scanning-module.html.md))

The GM73 code reader module is a high-performance code scanner that can capture common 1D and 2D codes like Barcode and QR on labels, papers or even...

## Pricing

- **Price:** $77.50 (inc GST) — $70.45 AUD, exc GST
- **Quantity discounts:** 6+ $66.93 (exc GST) · 12+ $64.11 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today; more stock is typically available with a 8–12 day lead time.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0544:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0544:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The GM73 code reader module is a high-performance code scanner that can capture common 1D and 2D codes like Barcode and QR on labels, papers, or even screens at a high speed of about 1s.

![](https://core-electronics.com.au/attachments/localcontent/1_2451848db6a.png)

The module comes with superior reading performance utilizing advanced decoding algorithms based on smart image recognition, which is able to read all kinds of codes accurately. The scanner allows users to configure parameters by scanning setup codes, greatly reducing development difficulty. Besides, it has onboard micro USB and UART and can be conveniently embedded into various devices like self-service vending machines, metro gates, access control, checkout counter, and so on.

![](https://core-electronics.com.au/attachments/localcontent/2_212293afd17.png)

![](https://core-electronics.com.au/attachments/localcontent/3_17462655af2.png)

###  Features

7. Smart image recognition
8. Capture speed of about 1s
9. Onboard micro USB and UART
###  Applications

11. Self-service vending machine
12. Metro gate
13. Access control
14. Checkout counter
###  Specification

16. Sensor: 640\*480 CMOS
17. Illumination: white LED
18. Focus: red LED
19. 1D Codes Supported: EAN, UPC, Code 39, Code 93, Code 128, UCC/EAN 128, Codabar, Interleaved 2 of 5, MSI-Plessey, GS1 Databar, Code 11, Industrial 25, Standard 25, Matrix 2 of 5
20. 2D Codes Supported: QR Code, Data Matrix, PDF417
21. Reading Accuracy: =5mil
22. Depth of Field: 30-150mm (Starting from the front camera, the mobile phone screen size of 5.2”)
23. Scanning Angle: intersection angle 360°, elevation ± 55°, deflection angle ± 55°
24. Viewing Angle: Inclination 60°, Elevation 46°
25. Contrast: =25%
26. Interface: TTL-232, USB
27. Dimension: about 30\*24\*7mm /1.18\*0.94\*0.28”
28. Operating Voltage: DC 5V
29. Operating Current: =180mA
30. Ambient Light: 0~10000lux
31. Operating Temperature: -20°C ~ 50°C
32. Storage Temperature: 40°C ~ 70°C
33. Operating Humidity: 5%~95% (Non-condensing)
###  Parts List

35. GM73 Barcode & QR Code Scanning Module x1
36. USB Cable x1
37. TTL Adapter x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0544-1.jpg)