Chauvin Arnoux PPD 26 Notice De Fonctionnement page 19

2.2 REAR PANEL
3.5mm jack for
temperature
probe
BNC
connector for
pH/mV
electrode
PPD 26 pH Meter Thermometer
Battery
compartment
cover
English
2.54mm jack
for recorder
output
2.1mm
connector for
power supply
unit
19