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  • HART or Foundation Fieldbusdigital communications
  • Multiple parameter and transmitter options
  • No reagents — free chlorine and monochloramine sensors are completely reagent-free
  • Variopol quick disconnect sensors
  • Prewired and plumbed
  • Low sample flow; <3gph (183 mL/min)

The Rosemount Analytical Model WQS water quality system is intended for the determination of any combination of pH, ORP, conductivity, temperature, free chlorine or monochloramine, oxygen, turbidity and particle index in fresh water. The Rosemount Analytical Model WQS system combines user-specified instruments and sensors to create a customized system for monitoring water quality. Unlike systems from other manufacturers, the Model WQS does not use expensive sample conditioning systems or messy reagents.

The Rosemount Analytical Model WQS systems require less than 3 gph (183 mL/min) sample flow. There is little waste, which is important in areas where water is scarce or a sewer is not available.

The Rosemount Analytical Model WQS is ideal for continuous monitoring of water distribution systems by providing constant surveillance of water quality events that may affect the security of your distribution network. The Model WQS helps ensure acceptable water quality parameters are maintained throughout the distribution system and assists in meeting the requirements of the Surface Water Treatment Rule.


Rosemount Analytical Model 3900 pH/ORP Sensor
3900 and 3900VP general purpose pH/ORP sensors
In Stock


Please consider these optional accessories.

Rosemount Analytical 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors
Precision dissolved oxygen, dissolved ozone and chlorine sensors
In Stock
Rosemount Analytical 99CC Calibration Certificate
One certificate per lot at standard factory ranges only, includes the model, serial and/or tag numbers (does not include actual test data)
Rosemount Analytical Electronic Calibration
Certificate for specific unit, includes model, serial and/or tag numbers, test standards, NIST report numbers, & the actual test data
Rosemount Analytical 99LC Loop Calibration
Analyzer & sensor(s) are loop calibrated as a system using NIST traceable reference instruments, certificate includes actual test data
Rosemount Analytical Certificate of Origin
Original certificate of origin with chamber of commerce stamp
Rosemount 1410 Wireless Gateway
Connects WirelessHART networks with host systems & data applications, offers network flexibility for remote indoor operations
Rosemount 1420 Wireless Gateway
NEMA 4X gateway connects WirelessHART networks with host systems with the capacity for up to 100 devices
Rosemount 775 Wireless THUM Adapter
Enables wireless capabilities for 2, 3, or 4-wire HART devices to remotely manage, monitor & gather data
In Stock


This product can be used in the following applications: