
Liquor Control System
Track every pour, eliminate over-pouring, and protect your margins. SmartTap turns your draft system into a controlled revenue stream.
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KLERK is a trusted leader in manufacturing beverage controllers, draft beer monitoring systems, and point-of-sale solutions. Leveraging unique technology, our products are setting new benchmarks in precision, performance, and profitability.
Trusted by bars and restaurants — reducing waste, boosting profits, and simplifying operations.

Track every pour, eliminate over-pouring, and protect your margins. SmartTap turns your draft system into a controlled revenue stream.
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Easy to set up and intuitive to use, our Draft Beer Controller provides real-time monitoring of every tap. Track each pour, reduce waste, maintain consistent quality, and protect your margins.
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Our POS simplifies order management, delivers actionable insights, and adapts easily to your workflow — saving time, reducing errors, and boosting operational efficiency.
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Serve every drink with precision, maintain consistent quality, and keep full visibility of your inventory. Our Liquor Controller helps prevent losses and improve profitability.
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“The draft beer controller from KLERK helped us cut down on waste and track every pour with precision. Installation was quick, and the data it provides is incredibly useful. Highly recommended!”
— Sophie D., Bar Manager, Montréal“We’ve tried several POS systems over the years, but KLERK’s is the first that truly fits the pace and needs of our restaurant. Clean interface, powerful features, and rock-solid reliability.”
— Marc L., Restaurant Owner, Québec“From the first demo to full setup, the KLERK team has been amazing. Their alcohol controller is spot on — and the fact they’ve recreated AZ 200 functionality is a big win for us.”
— Julie B., Bar Owner, OttawaSchedule a demo or get more information today — discover next-gen beverage control and POS built for today’s industry, reduce waste, and boost your profits.
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