Set up QR codes, barcodes and RFID codes

QR codes, barcodes and RFID codes are used for scanning equipment items or serial numbers in Rentman. Scanning lets you track the location and status of an item or serial number. You can also scan items that must be repaired, and check if you forgot to pack any items for a project. In this article, we explain how to set up QR codes, barcodes and RFID codes.

Available for: Lite Classic Pro


Difference between items and serial numbers

An item is a type of equipment with a defined quantity, and it can consist of multiple serial numbers

For example: Customers can hire your item Martin Atomic 3000 DMX strobe light. When you have five of these strobe lights, you have five serial numbers. Each of these five strobe lights has a unique serial number.

For expensive equipment items, it's useful to add QR codes to each of their serial numbers. Bulk equipment such as cables don't need QR codes for each serial number; you could add one QR code to the item instead.

What type of code should you use

All three types (QR, barcode and RFID) are supported by Rentman. However, we recommend using QR codes because they can be printed in smaller formats than barcodes (starting from 7mm * 7mm). This makes it easier to use them on small items, such as microphones. Additionally, you can generate, download and print your QR codes in Rentman.

Barcodes and RFID codes need to be generated outside of Rentman.

What can you use codes for

You can use codes to:

Assign a code to an item or a serial number

You have two options to assign a code to an item or a serial number. Assign a single code to an item when it doesn't contain any serial numbers, or when the item is a generic piece of equipment such as a simple cable.

Option 1: code to item

You can use ready codes and assign them to items and serial numbers. It doesn't matter what codes you use, as long as they are unique. 

  1. Print (or order from us) a sheet of unassigned codes and use these to label the different items.
  2. Go to the Equipment module, and double-click on an item to open it (To assign a code to the serial numbers of that items, open now the Serial numbers tab).
  3. Go to the QR code tab.
  4. Double-click on the QR code to edit it.
  5. Scan the code labeled on this item, and click Save

The code is now associated to the item or serial number.

Option 2: item to code

You can generate QR codes for items and individual serial numbers by providing your own code. It doesn't matter what code you provide, as long as it is unique.

  1. Go to the Equipment module, and double-click on an item to open it (To assign a code to the serial numbers of that items, open now the Serial numbers tab).
  2. Go to the QR code tab.
  3. Double-click on the QR code to edit it.
  4. Fill in your unique code, and click Save



Does your serial number already have a QR-code? Scan it to discover the code behind it, and fill in this code. This will generate the exact same image, which you can download and print.


Download your QR codes

You can change the size of your QR code labels by adding (or editing) your letterhead in the Configuration module > Customer communication > Letterhead.

Single code
When filling in your unique code, you can click on the image to download it.

Multiple codes at once

  1. In the Equipment module, select Select.png all items that you want to download the QR codes of.
  2. Click on the More actions button ... and choose Equipment tag.
  3. Click on Generate.
  4. You can download the file by clicking the download button, or by right-clicking in the file and choosing Save as...

Print your QR codes

Option 1: Order pre-printed sheets with your QR codes.
Order QR codes from Rentman, or from a QR code manufacturer.

Option 2: Print the QR codes yourself
Download your QR codes (see section above) and print them with a label printer. You can print the codes on quality paper, or simply on standard paper.

Read the section Supported label printers in this article for more information.

Order pre-printed sticker sheets

We sell pre-printed sticker sheets with QR codes that have a special industrial coating. This makes them resistant to damage from water and light. These QR codes have a high ECC-level, which means that the code will still work if 30% of it has been damaged.

We sell the sticker sheets in the following sizes:

10mm * 12mm, €35 per 442 units


20mm * 23,6mm, €55 per 504 units


You can order the stickers by emailing us at with your order, quantity, size, and address. 

Supported scanners

You have three options to scan your QR/barcodes:

  1. Install the Rentman Mobile app on any Android or iOS smartphone to use your phone's camera as a scanner.
  2. Install Rentman Mobile on a Zebra scanner model TC20 or TC25.
  3. Rentman supports all types of USB-scanners that act as an alternative keyboard. The output of the scanner is recognized by the system, which eliminates the need for additional software. We have successfully used Motorola and Symbol scanners.

Supported label printers

All label printers should work with Rentman. We have succesfully used the Dymo LabelWriter to print our QR codes.

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