WPI : What instruments for the measurement cellular, the microinjection and the microchirurgie?

WPI (World Precision Instruments) is a trusted reference for laboratories working directly with living systems. A specialist in cell barrier (TEER) measurements with EVOM systems and STX/EndOhm electrodes, the brand also offers microinjection solutions (e.g. PV830), syringe pumps and microsurgery instruments. Supporting academic research and pharma/biotech R&D, WPI combines precision, reliability and application support to deliver reproducible results, from cell culture to ex vivo models.

Over half a century of practical innovation in the laboratory

Founded in the late 1960s, WPI built its reputation on instruments able to measure and intervene with fine control in sensitive biological settings. Early on, the brand stood out in experimental physiology and neuroscience with robust, calibratable tools engineered for bench ergonomics. Its pragmatic approach – putting precision at the service of real-world protocols – led to de facto standards, such as TEER measurement with the EVOM family. WPI’s European footprint ensures logistical proximity and technical support for R&D, quality control and academic teams. Today, WPI supports projects that demand microvolume control, stable instrumentation and responsive after-sales service, while keeping the same guiding thread: reliability, ease of use and measurement quality.

Expertise and areas of specialisation

At the heart of WPI’s expertise: measuring barrier integrity/permeability in cell culture. The EVOM systems and STX or EndOhm electrodes deliver a precise TEER readout for insert models (Transwell-type) and advanced solutions. Teams in pharmacology, toxicology, ADME and organ-on-chip value the repeatability of measurements, signal stability and the ease of cleaning and calibration. WPI is also renowned for microinjection from micro- to nanolitres (e.g., PV830), essential in developmental biology, physical transfection, oocytes and sensitive models. On the fluidics side, its syringe pumps provide precise flow rates for perfusion and controlled delivery. Finally, its range of microsurgery instruments (forceps, scissors, needle holders) in quality steel makes fine dissections and experimental surgery easier. WPI’s DNA is instrumentation built to last, with calibration protocols, accessories and application support that safeguard reproducibility. The products are designed to integrate seamlessly into modern laboratory workflows, from the culture dish to the electrophysiology set-up, with one constant aim: turning a delicate manipulation into a reliable result.

WPI products available from Dutscher.

Frequently asked questions about the WPI brand

Are EVOM systems compatible with Transwell inserts?
Yes. STX electrodes and EndOhm chambers are designed to measure TEER on standard cell culture insert formats.

Can WPI instruments be calibrated or repaired?
Yes. WPI offers servicing, calibration and spare parts to extend instrument lifetime and ensure day-to-day measurement reliability.

How accurate are WPI syringe pumps?
They deliver stable, reproducible flow at micro- and low-flow rates, suitable for perfusion, microfluidics and controlled delivery.

Do WPI instruments meet European requirements?
WPI equipment for the European market carries the CE marking and complies with the applicable directives (electrical safety, EMC) for laboratory use.

What does WPI bring to everyday TEER measurement?
Robust EVOM systems, a stable signal, electrodes to suit different formats and user guides for reproducible measurements and batch-to-batch comparability.

Does the brand offer educational resources?
Yes. WPI publishes tutorials, application notes and videos to support set-up, calibration and best practice in measurement and maintenance.