ECOPROBE 4 is discontinued product. ECOPROBE 4 comprises only PID
analyzer and did not offer the advanced features which ECOPROBE 5
provides. Once you learn how to work with ECOPROBE 5, you will never
want to return to its previous model. And if you once have worked with
ECOPROBE 4, it is easy to make the step to the next model, comprising
latest technology, a powerful computer, combination of highly sensitive
PID + 3 channel selective Infra-red analyzer capable of selective
reading of Methane, CO2 and Hydrocarbon group. ECOPROBE 5 also measures
temperature, ambient and sampling pressure, oxygen, includes built-in
GPS and much more…