SECO: The payment terminal from SECO

Complete with an internal cell modem, MBD interface, and backend payment processing services, KarL4 is a cashless, contactless payment terminal for credit card and digital wallet payments in vending and self-service machines.

Certified for

Payment, Connectivity, and Machine Data in One Terminal

Antenna with IP Rating

KarL4 combines an externally mounted NFC antenna with a self-contained payment module inside the machine. Together, they enable contactless payment acceptance while supporting connectivity, transaction data, and integration with vending management workflows.

NFC antenna that mounts to the vending machine
IP65-rated when mounted due to integrated sealing
Internally cabled to the payment module
Designed for machine-housing or behind-glass integration

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Self-contained payment module

Internal payment module mounted inside the machine
Integrated CAT 1 cellular modem with M2M connectivity
Cabled to NFC antenna; multiple cell antenna options
MDB interface for vending-machine integration
Optional expansion with touch display, Ethernet (LAN), BT, and machine sensors
Communication with backend payment processing services and vending management software

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Payment Transaction Services Behind Every Tap

Payment network operation

Support payment transaction workflows with authorized payment and network partners, including authorization and service transactions such as cancellations, rejections, cash cuts, and administrative transactions where applicable.

Data consolidation and reporting

Consolidate transaction, revenue, and machine-operation data into reports that help operators and service teams understand payment activity across connected machines.

Terminal management

Support remote software maintenance for KarL4 terminals and manage device data needed for payment-provider workflows.

Connectivity

Managed M2M connectivity for each KarL4 terminal, including SIM card or chip provisioning, LTE/GPRS data communication, and operation through SECO-Connect APN/SIM management.

Clea Vend & our Payment Systems

A Complete Solution for Cashless Payments

For operators that need a centralized view of machine status, inventory, sales, transactions, alerts, and locations, Clea Vend extends KarL4 deployments into a full vending management environment.

Machine uptime and remote monitoring.
Smart restocking and route planning.
Sales and transaction visibility.
Fleet management at scale.
Data-driven vending operations

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Proven in Vending

Decades of hardware and software experience for vending applications.

Deployed at Scale

150,000+ connected payment terminals deployed and managed in Europe and the US.

Launched in North America

KarL4 supports Visa and Mastercard and is FCC certified for the US market.

Built for Unattended Environments

Compact, connected, low-power technology suited to retrofit and outdoor applications.

Beyond the Reader

Payment services and Clea Vend software help operators manage transactions and machine data.

Modernize your Vending Network with SECO

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The Payment Terminal for Retrofit and Outdoor Vending