Description
The Portavo 904 is an invaluable multi-purpose tool for any analyzer or lab technician. Designed for use inside of plant operations as well as in the shop or lab, this portable meter, with a connected sensor, measures pH, ORP, conductivity, or oxygen. This versatile instrument provides portable field measurements, sensor diagnostics, data logging, and offline sensor calibration.
Simple, Intuitive, and Informative
Intuitive menu navigation, the automatic sensor calibration function, and easy-to-understand sensor diagnostics make the Portavo 904 simple to implement in any instrument/analyzer shop or lab. The LCD-Segment display is readable in direct sunlight and provides critical sensor information such as:
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- Sensoface: sensor status at a glance
- Sensor calibration data
Automatic and manual calibrations are possible using the Portavo 904 with up to 3 points. Automatic calibrations use pre-installed buffer tables, while manual calibrations can be done with user-defined buffer tables. There is no need to re-calibrate the Portavo. Because it is a digital meter, there is no drift.
Features
- 5,000 point data logger – In a dual input configuration, both inputs, as well as diagnostic data, are logged at the same time
- USB interface for connection to Paraly 12 Software for data visualization and collection
- More than 1,000 hours of operation using four AA batteries and the “automatic off” feature
- Optional rechargeable Li-ion battery pack
- Rugged, NEMA 4X housing
The Portavo 904 is parameter-specific (pH/ORP, conductivity, or oxygen).

