Professional IoT Solutions 02. 22 Conductivity Calibration Kit, K=0.1 9339 Conductivity Calibration Kit, K=1 9340 Conductivity Calibration Kit, K=10 9341 DO Calibration Solution 9342 pH Calibration Kit 9343 ORP Calibration Solution 9344 Turbidity calibration solution, 4000 NTU 72465 Storage solution for PHEHT probe 72464 Sensor protection accessory 9493 Membrane for OPTOD sensor 9491 Membrane for OPTOD titanium sensor 9494 Cartridge for PHEHT sensor 9492 Accessory Calibration Solutions Consumable component Ref. Ref. For Smart Water Xtreme sensors, it is highly recommended to purchase calibration solutions to calculate accurate measurements. One kit is enough for several sensor units. Some sensors need storage solutions too. Also, we provide an accessory for protecting a sensor mechanically; from aquatic fauna, for instance: Periodic Replacement Specific components of some sensors require periodic replacement: Back to Smart Water Xtreme Back to Smart Water Xtreme A IoT Solutions based on Plug & Sense! Platform 2.2 Water Management