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The Axiom™ H2 Datalogger / DCP

Tough on the outside. Clever on the inside.

The Axiom was the first to offer an integrated touchscreen to provide a simple, graphical interface to all logged data, scripts, configurations, sensors and diagnosis tools. Our strength is ruggedness, so it’s still the only waterproof, industrial-grade, daylight readable integrated touch screen. It eliminates the need for field laptops and cables, and includes full support for event-triggered programming, without the need to program. Power and flexibility, without sacrificing simplicity.

Axiom datalogger requires no laptop.
Axiom datalogger makes water quality monitoring extremely simple.
Axiom datalogger is as rugged as a tank.

Leave the laptop at the office.


  • No more wind and rain damage, low battery or “where do I put the laptop?” hassles.
  • No complex software to install, configure, maintain or learn.
  • No interface cables to mess with.

Real simple.


Clever design in both hardware and the integrated software makes life easier for everyone who interacts with the datalogger. So you can focus on the data and not on ensuring you get it.

Built like a tank.


If you can’t tell by looking at it, go ahead and pick it up, or submerge it in water. This datalogger is built to last. It delivers extremely low total cost of ownership.

Double the SDI ports, double the reliability.


Four independent SDI ports reduce the failure risk by up to 75% compared to dataloggers with just one or even two SDI ports. A sensor failure on one port won’t stop the sensors on the three other ports from continuing to record data.



Get your data to go.


FTS was the first company to introduce GPS into GOES communication, and the first to offer HDR GOES data. Our fifth-generation G5 GOES transmitter is extensively field proven as the most reliable of any manufacturer. In fact, FTS GOES technology forms the backbone of the National Climate Reference Station System. It’s available as an option integrated into the Axiom datalogger. other telemetry options are also available.

FTS' GOES Advantage


  • Extremely accurate timekeeping reliably transmits hourly data for up to 28 days without a GPS fix.
  • Extremely low power requirements extend operation in situations of low power or interrupted solar panel charging.
  • Automatically calculates GOES antenna azimuth and inclination, speeding installation and eliminating errors.
  • Supports test transmissions on an alternate test channel with fixed text messages to ensure future data transmission reliability.
  • NESDIS ID testing is performed at the factory before each DCP is shipped to further ensure that GOES transmissions will work perfectly.

Event-triggered programming. Without the need to program.


Built-in threshold sampling functionality that can be set up to initiate triggers based on any measured time series data point. Invoking this feature and customizing thresholds and sampling logic is done using a simple graphical interface on the integrated color touchscreen, without the need to write any code. All you do is enter the threshold values. If your trigger measurement is turbidity, just use the built-in set of thresholds—there’s nothing more to do.

The Axiom will automatically log the bottle sample number taken at each threshold.

When it was introduced in 2009, the Axiom datalogger was the first to introduce flexible, GUI-based, event-driven sampling. The Axiom has the unique ability to intelligently trigger an attached Teledyne ISCO automatic water sampler to get you the optimized samples you want. For instance, when a turbidity event occurs, a series of strategic water samples can be captured until the turbidity decreases again to normal. This ensures that only event water samples are taken, resulting in better data. This unique capability of the Axiom datalogger powers our SedEvent water quality system.