Regular zero and air calibration is the foundation of reliable PROBEST Dissolved Oxygen Sensor performance. By following this standardized procedure, you ensure accurate, compliant data for wastewater treatment, aquaculture, and environmental monitoring applications. For service, support, or replacement parts, contact the PROBEST technical team.

A PROBEST MP301 portable mutiparameter sensor purchased in early 2022 has been operating reliably on-site for over 4 years. A simple adapter replacement was all it took to restore the main unit’s full functionality, demonstrating our equipment’s excellent long-term durability. We also share key pH probe maintenance tips to help users avoid inaccurate readings caused by dried-out internal filling fluid. PROBEST delivers robust analytical instruments and full lifecycle technical support to global water quality monitoring clients.

The global water treatment systems market is growing rapidly driven by water scarcity, urbanization, industrialization and strict water quality regulations, projected to hit US$24.33 Billion by 2035 with a 7.02% CAGR. As a professional brand in water quality monitoring, PROBEST provides reliable water quality analyzers and testing instruments for drinking water safety, industrial wastewater treatment, smart water infrastructure and environmental compliance. PROBEST instruments support accurate, real-time water quality detection to enhance treatment efficiency and ensure sustainable water management.

PROBEST supplied a complete set of online water quality monitoring instruments for Zhao’an West Sewage Treatment Plant (Phase I) and supporting pipeline network project. With treatment capacity of 12,000 m³/d and effluent up to Grade 1A standard, our intelligent analyzers for COD, ammonia nitrogen, TP, TN, ORP, pH, DO, SS, etc., enable 24/7 real-time monitoring, improve operational efficiency and strengthen ecological protection capacity of the industrial park.

Learning by competing and practicing Lean | PROBEST held Lean Manufacturing Knowledge CompetitionIn order to promote the advancement of lean production work, ensure that every employee can fully understand and master the knowledge of lean production, and improve the production efficiency quality.