A secure island card reader and station reader for unattended and attended fueling sites
Sentinel Island Card Reader: Pay at the Pump Without a CRIND Upgrade
Updating dispensers is costly and time-consuming. The Sentinel Island Card Reader lets you take chip-card payments at the pump without replacing your CRINDs – a proven CRIND alternative and station reader for operators who want secure unattended fuel payment on the equipment they already run. Whether you manage unattended fueling sites or simply want faster, safer pay-at-the-pump service, Sentinel fits the way your forecourt works.

Generic Accounting Software Wasn’t Built for Tracking Fuel Margins, Shrink, or Balancing Daily Books
Convenience stores move fast and have multiple moving parts. Generic business software often misses the details that matter: fuel margins, shrink, and multi-location reporting. Red River’s CSMinder is designed specifically for c-store operations, giving owners and managers the accuracy, visibility, and control they need to protect margins and make confident decisions.
Instead of juggling separate systems, Red River brings your front end, inventory, and back office together in one connected platform, reducing errors, saving time, and keeping every location aligned.

Built Strong to Last
A weather- and tamper-resistant chassis that is UL Listed, PCI Compliant, and PA-DSS Certified – engineered for years of reliable outdoor duty at the island.

Secure Payment Processing
Securely process payments from all major credit and debit cards, and accept house charges, fleet, or gift cards through the Pioneer Card Processor. An integrated receipt printer is included.

Connect to the Forecourt
Connects to up to 32 dispensers through a forecourt controller, with configuration available to dispense dyed diesel – a strong fit for high-volume and agricultural sites.

A Lower-Cost CRIND Alternative
Instead of a full dispenser or CRIND replacement, Sentinel adds a certified pay-at-the-pump card reader to your existing island – maximizing your equipment investment while enabling secure unattended fuel payment.
Ideal for C-Stores and Co-ops
Sentinel is a natural fit for convenience stores and cooperatives that run attended and unattended fueling sites. Co-op members and fleet customers can fuel around the clock and pay with proprietary cards, while every transaction flows into your back office. Pair Sentinel with gas station EMV solutions to secure chip payments across the entire forecourt.

What customers are saying
See what convenience store operators are experiencing with Red River Software:
Frequently Asked Questions
An island card reader is a payment terminal mounted at the fuel island that lets customers pay at the pump. The Sentinel Island Card Reader accepts chip cards, mobile wallets, and proprietary cards at both attended and unattended sites.
Yes. Sentinel adds secure pay-at-the-pump acceptance without the cost and downtime of replacing your CRINDs or dispensers, making it a practical CRIND alternative for existing forecourts.
Yes. Sentinel is built for unattended fuel payment, connecting to up to 32 dispensers through a forecourt controller and supporting 24/7 self-service fueling.
It accepts all major credit and debit cards plus house, fleet, and gift cards through the Pioneer Card Processor, and includes an integrated receipt printer.
Why Fuel Dealers Choose Red River Software
Purpose-built fuel delivery software, not generic accounting tools
One connected system from terminal to truck to tank
Stronger reporting, tighter margins, and better daily visibility
Scales from a single truck to larger fleets
Experienced U.S.-based support from a team that knows the fuels business
Trusted by operators for more than 40 years
Frequently Asked Questions
Fuel distribution software manages the movement of bulk fuel from the terminal to the customer – covering bills of lading, dispatch, delivery, pricing, invoicing, and tax reporting. RR Fuel handles all of it in one integrated system.
Yes. RR Fuel is full fuel dispatch software: coordinate delivery timelines, sequence stops across your fleet, and let drivers capture delivery data on truck tablets that flows straight back to invoicing.
Yes. As propane management software, RR Fuel forecasts fills with degree days and K-factors, manages prepaid and budget heating contracts, and tracks tank and contract detail for every customer.
Yes. RR Fuel installs on Windows tablets and laptops and can be hard-wired to the meter head, so drivers enter data from the truck and terminal pickups stay accurate across your whole fleet.
Yes. RR Fuel generates EDI electronic files and state-specific fuel schedules so your fuel tax reporting is accurate and far less manual.
