YSI Pro Plus Water Quality Meter
The ProQuatro Handheld Multiparameter Meter delivers reliable, field-ready water quality testing for both environmental monitoring and laboratory applications. Combines rugged durability with versatile sensor options, making it ideal for demanding fieldwork conditions.

The ProQuatro Handheld Multiparameter Meter delivers reliable, field-ready water quality testing for both environmental monitoring and laboratory applications.
Designed to measure a wide range of parameters—including dissolved oxygen, conductivity, salinity, TDS, pH, ORP, ammonium, nitrate, chloride, and temperature—it also serves as a powerful lab instrument for BOD, pH, and ORP analysis.
Fully EPA-approved for drinking water and wastewater compliance reporting, the ProQuatro combines rugged durability with versatile sensor options, making it ideal for demanding fieldwork.
Key Features & Benefits:
• Compatible with 4-port Quatro cable for up to four sensors (DO, temperature/conductivity + any two ISEs)
• Measures multiple water quality parameters in one device
• Rugged, waterproof IP67 design; drop-tested and floats
• Scratch-resistant lens, glow-in-the-dark keypad & backlit display
• Easy cable management with daisy-chainable weights
• 3-year instrument warranty
• 2-year cable warranty
Applications:
• Drinking water & wastewater compliance
• Environmental monitoring & remediation
• Laboratory analysis (BOD, pH, ORP)
• Field sampling in harsh conditions
Products & services

WAM Scientific offers short-term and long-term rental of reliable environmental monitoring equipment. Whether you need specialised tools for a specific project or extra units to support ongoing work, our rental solutions ensure you have access to accurate and well-maintained instruments without the cost of ownership.
Rent
From individual instruments to complete systems as well as high quality sampling media, WAM Scientific provides cost-effective solutions backed by expert advice, helping you invest in equipment and consumables that delivers consistent performance and value.
Buy
Our team provides expert servicing, calibration, and maintenance for environmental monitoring equipment. At WAM Scientific, we ensure your instruments remain accurate, compliant, and in good working condition, minimising downtime and maximising reliability in the field.



