| GPH 014 | pH meter with electrode GE014 | 75.90 EURO |
| GPRT 1400 A | Conductivity meter for ultra pure water | 202.10 EURO |
| GMH 3530 | pH, rH, mV and temperature meter | 151.00 EURO |
| GLF 100 RW | pH, rH, mV and temperature meter | 202.10 EURO |
| GMH 3430 | Conductivity, temperature, salinity, TDS meter | 248.40 EURO |
| GMH 3630 | Dissolved oxygen and temperature meter | 567.70 EURO |
| GMH 3690 | Oxygen in air and temperature meter | 272.30 EURO |