On-site oil kinematic viscosity testing in petrochemical, power, construction machinery and marine maintenance industries faces harsh daily conditions: dust, liquid splashes, extreme temperature shifts and limited stable power. Traditional benchtop viscometers are bulky, environment-sensitive and unfit for steady use in workshops, field sites or ship decks.

JOINWE JVH-2 Portable Kinematic Viscometer is built for these tough field challenges. It pairs a dustproof, splash-resistant body with wide-temperature operation, blending laboratory-grade precision with heavy-duty durability for reliable on-site viscosity testing.

Using the proven capillary testing method, it retains lab-level accuracy while prioritizing portability. Paired with a custom carrying case, it travels easily to any test site, breaking lab limits for fast, on-site analysis and instant data decisions.

Its fully sealed dustproof and splash-proof design blocks dust, oil and accidental water splashes, protecting core components—precision capillary, photoelectric detector and temperature control module—from damage. Operators can use it confidently in dusty, humid areas with no extra protection needed.

Engineered for fluctuating field temperatures, it operates steadily from 5℃ to 35℃, with stable constant temperature even when target and ambient temperatures differ by 5℃+. No extra cooling or heating is required; its fast thermostatic system delivers accurate results in just 3 minutes, slashing test wait times and boosting efficiency.

Powered by a premium imported 24V lithium-ion battery, it runs continuously for 5 hours at 100℃ high-temperature mode, eliminating outlet searches and tangled cables for full mobile testing freedom. It delivers fast, reliable data to check lubricant replacement needs and fuel oil stability, supporting quick, precise maintenance decisions.

More than a test instrument, the JVH-2 redefines on-site Kinematic viscosity testing efficiency. It moves precision analysis from the lab to the frontline, providing accurate, on-demand measurements for every fast-response industrial application.