Whats the difference between a Hach HQ30D and Hach HQ40D?

The Hach HQ meters are digital meters for the analysis of pH, Conductivity, Dissolved Oxygen, ORP and Ion specific electrodes. Two portable models are available.

The Hach HQ30D is a single input multi meter capable of using all the above probes.

The Hach HQ40D is the same as the HQ30D in terms of functionality however the HQ40D has two inputs which can be used simultaneously. The Hach HQ40D is also supplied with the USB based power adapter which can be used to power the unit in the laboratory or it can be used to update the firmware and download data onto a USB stick for further porocessing.

For more info and a quote on the HQ range of meters please fil out the form below.