Your best value in fuel controllers

CardMaster is the best choice for control and  accountability of small fleet fueling sites. Other choices will cost considerably more. Please investigate our quality, performance, and after sale support before making your investment.

We Provide A Quote

Our sales team will work with you to understand your needs and supply you with a low-priced quote for the CardMaster model and accessories that fit your needs.

Equipment Delivery and Installation

We work with a local distributor and factory-trained installation team to ensure your new equipment installation meets all local codes.

Ongoing Support

All CardMaster models come with a two-year parts warranty and US Based phone support for the lifetime of your CardMaster. If you have any problem with operations after installation, give us a call, we’re here to help!

Industry Leader

Cardlock Vending is your low cost producer of CardMaster fleet fueling controls and device controls.  CardMaster was first introduced in 2001. 

About Company

Legendary Reliability

Many of the original CardMasters installed over 20 years ago are still in operation today!

I’ve sold 100s of these over the years and can’t think of a single customer with a hardware issue. CardMaster is a TANK!


The Southern Company, Memphis, TN

Principal Categories

CardMaster’s product line is divided into several principal categories: Fleet Fueling for commercial and industrial sites, agriculture, mines, school districts, public works and other government agencies. In addition we provide device control for gate access, warehouse access, motorized devices and other types of machinery. 


Years Of Fuel Management Experience


Our Services

The CardMaster platform provides rebust fuel management as well as security and accountability for unattended restroom doors, gate access, warehouse doors, RV dumps, fleet car washes and trash compactors as will as other motorized devices

Fleet Fueling

Provides control and accountability for private fleet fueling (non-retail), bulk plants -gasoline, diesel, and LPG, inventory management, and fleet car wash accountability. Click Here


Provides information using CardMaster CM-HostCT software; with terminal remote programming functions, polling functions and report generation. Click Here


Explains the various options to poll usage data and remotely program CardMasters. Click Here


Tells of some of the handy support items for installation of, and use of CardMaster. Click Here

Access Control

CardMaster helps manage use of and access to restrooms, RV dumps, trash compactors, gates, warehouses, and almost any device that can be controlled by a relay-optionally with time limits.  Click Here