ATI PQ45 Portable Monitor & Data Logging System

ATI PQ45 Portable Monitor & Data Logging System


The PQ45 portable monitor and data logging system is designed for continuous remote monitoring of chlorine, pH, and other parameters in a convenient package


  • System is upplied in a carrying case with sensor and flow control system mounted inside the case
  • Quick-disconnect fittings on the outside of the case allow connection of sample and drain lines externally
  • Easy integration with NexSens data logging & telemetry products
List Price
Your Price
Get Quote

Drop ships from manufacturer
Shipping Information
Return Policy
Why Buy From Fondriest?


Monitoring water quality parameters at remote locations in potable water systems can present a challenge to those responsible for insuring safe drinking water. This is especially true for chlorine residual measurements, which is an essential parameter in maintaining high quality drinking water at the consumer's tap. Continuous monitoring instruments for free chlorine or combined chlorine have simply not been available in a convenient package designed for remote deployment.

ATI has developed an instrument to fill this need. Our Series PQ45 is a portable monitoring system that can be set up quickly and easily in almost any location to provide short term data on residual chlorine, and can also include pH measurement in the same package. Mounted in a sealed and lockable case, this monitor will operate for up to 30 days from two C-cell alkaline batteries, recording chlorine and pH data in an on-board data logger. Software supplied with the system provides for easy download to a laptop computer for later analysis.

While distribution system monitoring for chlorine and pH are the most widely used version of this package, PQ45 systems are also available for dissolved ozone, residual chlorine dioxide, dissolved oxygen, or conductivity. The same rugged and reliable package will allow easy deployment in whatever monitoring environment is required by your application. All that's necessary is a sample line and a drain. Connections are made through self-sealing fittings that isolate the flow as soon as they are disconnected. In addition, all flow and pressure controls are built into the monitor so external requirements are minimal.

PQ45 Monitoring Systems can also be used for remote solar powered installations. Instead of using internal batteries, the system can operate from external power supplies from 5-17 VDC. With a current draw of less than 10mA, even a small solar power system can operate the system with power left over for data transmission equipment. For almost any remote monitoring application, the PQ45 system provides a convenient and reliable solution.
Image Part # Product Description Price Stock Order
ATI PQ45 Portable Monitor & Data Logging System PQ45 Portable monitor & data logging system Drop ships from manufacturer
Additional Product Information:

ATI PQ45 Portable Monitor & Data Logging System Reviews

| Write a Review

Be the first to write a review

Questions & Answers

| Ask a Question
What powers my system and how long will it last?
The system runs on (2) C-batteries and can run continuously for 30 days. The data logger has its own internal battery that can run for up to 6 months.
Can my data logger store memory? If so, for how long?
The data logger has an internal memory that can hold up to 43,000 data points. This allows approximately 11 days with a 1-minute logging interval.

In The News

Collaborative Southeast Nexus study examines region's air quality

While much of the world has experienced a warmer climate in recent years, the U.S. Southeast has cooled. Scientists want to know why because the answer could reveal keys to improving air quality and understanding climate change. To study the cooling Southeast, scientists at several institutions have joined forces to conduct the Southern Atmosphere Study (SAS), the largest study on southeastern U.S. air quality since the 1990s. These include the U.S. Environmental Protection Agency, National Center for Atmospheric Research, National Science Foundation, National Oceanic and Atmospheric Administration and the Electric Power Research Institute. Five air quality studies fall under the SAS umbrella.

Read More

Hydrogen Sulfide Monitoring - US Army Corps of Engineers

Project Overview NexSens field engineers installed hydrogen sulfide monitoring systems with real-time radio telemetry at several reservoirs in northeast Ohio, where many of the reservoirs have become problem areas for emitting H2S gases as a result of improper restoration of strip-mined land prior to the Surface Mining Control and Reclamation Act of 1977. Hydrogen sulfide (H2S), a colorless, flammable gas that smells like rotten eggs, is a hazardous substance to both people and the environment. When exposed to even low levels of hydrogen sulfide gas, people can experience eye irritation, a sore throat and cough, shortness of breath, and fluid in the lungs.

Read More

What is Conductivity?

UPDATE : Fondriest Environmental is offering their expertise in conductivity through their new online knowledge base. This resource provides an updated and comprehensive look at conductivity and why it is important to water quality. To learn more, check out: Conductivity, Salinity and TDS . Salinity and conductivity  measure the water's ability to conduct electricity, which provides a measure of what is dissolved in water. In the SWMP data, a higher conductivity value indicates that there are more chemicals dissolved in the water. Conductivity measures the water's ability to conduct electricity. It is the opposite of resistance. Pure, distilled water is a poor conductor of electricity.

Read More