Either 18 x water quality sondes with 2 sets of sensors capable of storing calibration data on the sensor rather than the sonde;

Or 32 sondes / sensor sets (where calibration data is stored on sonde) in order to provide uninterrupted year round monitoring of 15 out-stations. (15*2 + 2 spare)

Sensors to include:

Conductivity/Temperature

pH

Ammonium

Turbidity

Optical DO

fDOM

Additional requirements include:

Automated ‘wipe’ facility

AUX port for future expansion

10 metre Flying Lead Cable — Connects sonde to DCP Signal Output Adapter

Signal Output Adapter — DCP — Wires into the end of field cable via flying leads — Converts signal to RS-232

SDI-12 for datalogger applications

Signal Output Adapter — USB — Allows connections between sonde & PC.