Item 1 - Multiparameter Controller As Technical Specificationannexure Attached , Item 2 Online Ph Sensor As Technicalspecification Annexure Attached , Item 3 - Onlineconductivity Sensor With Cell Constant 0.1 As Tech. Spec.Annex. Attached , Item 4 - Online Conductivity Sensor Withcell Constant 10 As Tech. Spec. Annex. Attached Quantity: 30