Magento 2 core was designed to sell each-priced products in whole quantities. It has no native concept of a price per kilogram, a deli order of 0.350 kg of sliced ham, or 2.75 metres of cable cut to length. For grocery, produce, deli and hardware retailers, that gap blocks the entire in-store checkout flow.

This extension closes it. ECOSIRE builds you a Magento 2 module (shipped under app/code/Ecosire/PosUnitMeasure) that adds unit-of-measure pricing and weight/variable-quantity sales to your POS and storefront. A product can carry a base unit (kg, g, L, m, each), a price expressed per that unit, and a sellable quantity that accepts decimals. At the counter the cashier enters or captures a weight, the line total recalculates against the per-unit price, and tare is subtracted before pricing.

Hardware scales are integrated via a configurable bridge: serial/USB scale daemons, OPOS/JavaPOS, or networked weighing terminals that expose a weight reading to the POS client. Captured weights flow into the quote item through a service-contract layer so totals, tax and rounding stay consistent across cart, order and invoice.

The build is delivered as a clean, upgrade-safe module: di.xml plugins and observers (never core hacks), admin ACL for unit configuration, REST and GraphQL endpoints for headless and POS clients, and cron for any deferred recalculation. It runs on Magento Open Source and Adobe Commerce.

Because every retailer's scale hardware, unit catalogue and rounding rules differ, this is sold build-to-order. After purchase ECOSIRE scopes your units, integrates your specific scale model, installs on your environment and supports it. It is not an instant Adobe Commerce Marketplace download.