Open System vs Closed System Hematology Analyzer: What’s the Difference?

When sourcing a hematology analyzer for your clinic or lab, reagent compatibility is a factor you cannot ignore. Open system and closed system are the two main design types on the market, and they make a huge difference in your long-term operating cost and daily management.

What Is a Closed System Hematology Analyzer?

A closed system hematology analyzer is designed to work exclusively with the manufacturer’s original reagents and consumables. The equipment algorithm and calibration are matched only to the brand’s own diluent, lyse and cleaning solutions.

•Advantages: Factory-calibrated consistency, official technical support for the full testing process, strict quality traceability

•Disadvantages: High long-term consumable cost, no independent sourcing option, supply chain highly dependent on the brand

What Is an Open System Hematology Analyzer?

An open system hematology analyzer supports third-party or universal reagents. As long as the reagent formula meets the testing standard, it can run on the machine without compatibility locks.

•Advantages: Significantly lower daily testing cost, flexible reagent sourcing channels, lower supply chain risk for remote areas

•Disadvantages: Requires users to control reagent quality on their own; regular calibration is recommended when switching reagents

How to Choose Between the Two?

Your choice depends on your facility type, budget and local supply chain:

•Closed system fits large reference labs, tertiary hospitals and facilities that prioritize full official service over cost.

•Open system fits small and medium clinics, private labs, community health centers and facilities in emerging markets where cost control is critical.

For most primary healthcare facilities, an open system 3-part hematology analyzer delivers the best cost-performance ratio. It provides accurate complete blood count (CBC) results while greatly reducing recurring consumable expenses.

The Hawmed HM3000 3-part full auto hematology analyzer adopts an open system design with 60T/H testing speed and touch screen operation. It is a popular choice for clinics and labs across over 60 countries.