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The ZK840 counting scale offers exceptional accuracy and flexibility. A fully programmable counting scale, with database inventory control and a suite of built-in applications, this high resolution touch-screen scale has been designed with flexibility, ease of use and precision in mind.

Exceptional Flexibility
At its simplest, the ZK840 can be used as a general high resolution weighing and counting scale. A host of applications, including checkweighing, with inventory control, balance and density weighing, recipe filling, grading and pick list programs are available for use and can be fully customized if required.

Fully configurable solution
The sleek design and user-friendly features provide an ideal platform to build a solution that has been specifically programmed and tailored to your business - with no need to compromise.

Touch screen graphical weight display
The 5.3” x 2.75” (135mm x 75mm) touch screen graphical weight display offers ease of use and extreme durability. Graphics and text such as user prompts result in a more intuitive interface, allowing users to navigate applications using the touch screen.

Unrivaled Precision
An ideal counting scale for weighing micro-components or large items, the ZK840 features highly accurate Quartzell™ weighing technology. With 100,000 divisions (non legal for trade) or 10,000 divisions (legal for trade) and a 1 billion internal count resolution, the scale offers unrivaled precision.

Unrivaled Strength
A robust die-cast enclosure provides 1100% overload protection and protects the cell from shock and dropped loads, ensuring accuracy and repeatability in even the most extreme conditions.

Product images

Technical specification

Product Weight Available Capacities Resolution Size Variants

0.5kg - 80kg

500g - 80,000g
0.5kg - 80kg


- 235mm x 305mm with a 156mm dia top platter
- 305mm x 350mm 5kg to 35kg
- 305mm x 350mm 5kg to 80kg

Service and support

The new approach to servicing weighing equipment

Choose market-leading comprehensive cover. Or ground breaking, fully-inclusive with up to 99% uptime guaranteed. Introducing new, clear, unrivalled service levels for critical weighing operations – only from Avery Weigh-Tronix.


WeighCare Total™ and WeighCare™

Comprehensive, all-inclusive service cover, backed by a groundbreaking uptime guarantee, for heavy duty, integrated scales up to 5-tonne capacity.

Learn more about WeighCare Total™ and WeighCare™


ZK840 Counting Scale Brochure

ZK840 Specifications