Frequently Asked Questions

Where can I purchase one of these units?

You can find the Cassida Machines at any of the following retail partners below: Wallmart Staples Quill BJ's Fry's Electronics Sears OJ Commerce PCM

Where is the serial number for my unit? What does it look like?

Your serial number is a string of numbers and letters unique to your unit located underside of your unit.

How do I clean and maintain my unit?

Below is a link to the Cassida Instacheck Cleaning Procedure PDF, which can also be downloaded: Cassida Instacheck Cleaning Procedure

How often does my unit need to be cleaned?

Like other detectors on the market, standard maintenance and cleaning of the unit are important and recommended to significantly prolonging the lifespan of the product. Cleaning the unit helps prevent issues that may lead to a variety of errors like genuine bills being rejected. At Cassida, we suggest performing weekly cleaning on the unit to maintain top performance.

Does my unit detect counterfeit notes?

The Cassida Instacheck is designed to detect and flag various counterfeit notes. The Instacheck utilizes Ultraviolet (UV), Infrared (IR), and Magnetic (MG) counterfeit detection methods to help keep businesses safe and secure.

What could cause a genuine bill to fail?

There are a few reasons that a detector may fail a genuine bill. If bills are worn, bent, torn, or crumpled, the anti-counterfeit features needed to verify a bill as genuine may be compromised. For example, the magnetic ink on a note may wear over time or heavy use, reducing the magnetic response to below detection thresholds. If the Instacheck cannot verify the correct features expected on a note, the unit will fail the bill. If the sensors are dirty or damaged, the Instacheck will not be able to detect necessary anti-counterfeit features needed to pass the bill. Another possible reason is improper bill loading of the machine. If the bills orientation and alignment is skewed, it can cause a genuine bill to fail. Another possible reason is that the detection sensors may be incorrectly calibrated, lost reference, or be under operating conditions that cause false positives. In order to reduce these error types, it is advised to operate the unit out of direct sunlight and reduce interference that may cause sensor errors. If this occurs frequently under normal operation, please contact Cassida Technical Support for troubleshooting or service.

Does this unit keep count of bills added?

No, this unit is a counterfeit detector. It checks one bill at a time and displays either "PASS" if the bill is genuine, and "FAIL" if the bill is suspect. Run the bill at least 3 times before rejecting the bill as counterfeit.

Does this unit keep count of added value all day or per run?

No, the Instacheck is mainly for checking whether a bill is counterfeit or genuine.

Does this unit recognize note value?

No, the Instacheck is a counterfeit detector that checks one bill at a time. It cannot tell the different denominations of bills.

What does the 1-year warranty cover?

For warranty information, please visit: To activate your warranty in the US or Canada, please register your product online by visiting In other countries, go to In most cases, the malfunction of machine can be resolved by cleaning the unit. Please refer to the question "How do I clean my unit and how often does it need to be cleaned?"

What information do I need to provide for a support claim?

When providing a support claim, please have the following information ready: • You contact information • The product serial number - To find your serial number refer to the second question (Where is the serial number for my unit? What does it look like?) • The subject of your request • A brieif description of the failure that has been encountered.

How do I get my unit repaired?

Contact Cassida Support through our webpage at: and create a support ticket. The customer service representative assigned to your ticket will respond with troubleshooting techniques, or arrange for an on-site repair at our facility.

How can I reach Cassida customer and technical support?

Please visit to create a support ticket or call 1-888-800-0303.

Why does my unit reject genuine bills?

Please see the attached document for troubleshooting the Cassida Instacheck when it is rejecting genuine bills: - Cassida Instacheck Bill Loading Guide

How do I get a battery for my unit?

The batteries for the Instacheck are made specifically for our units and have to be purchased from CassidaUSA. To purchase a battery open a support ticket here, and our customer service team can further assist you with a battery purchase.

**IMPORTANT: Unless you are charging the battery, the unit has to be unplugged when using the battery to avoid damage to the battery.**

What kind of battery does my unit use?

The Cassida Instacheck can be used with a power supply or can be portable through the use of a battery. The battery for the Instacheck are made specifically for our units and have to be purchased from CassidaUSA. For more information on how to purchase a battery refer to the question “Where can I get a battery for my unit?”.

See battery specifications below:

  • 12V
  • 5400mAh
  • Output Current: 3A (max)

**IMPORTANT: Unless you are charging the battery, the unit has to be unplugged when using the battery to avoid damage to the battery.**

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Cassida Corporation
11035 Technology Place
Deliveries: Suite 200.  Offices: Suite 500
San Diego CA 92127


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