Multiparameter
Brand YSI
2. Multiparameter Type YSI Pro 2030
3. Multiparameter Type YSI Professional Plus
4. Multiparameter Type YSI-600LS-Level-Sonde
5. Multiparameter Type YSI-600OMSV2-Optical-Sonde-Vertical
6. Multiparameter Type YSI-600XLM-profile
Brand Horiba
2. Multiparameter Type Horiba - Laqua F-74BW