The oxidation reduction/ORP electrode S ’04 is a very sensitive, for quick and accurate redox electrode for the measurement in liquids. With their provides a BNC connection it is compatible with virtually all oxidation reduction meters, such as all devices offered by us.You will receive an extensive care and maintenance instructions with the purchase of these electrode. Here you can find other pH, EC, Leitwert, oxygen and redox electrode with BNC & Mini BNC Port for liquid and solid.All necessary cleaning (FL5) and maintenance liquids (FL1) you can buy the electrodes free shipping from our Shopordern. For calibration the Erstmaligen connection the pH electrode, we recommend our Hochgenauen pH calibration solutions (FL3) in a practical pack of 3 seal trim pack. Recipes:In addition you get recipes to make your own adjustable calibration liquids for pH values from PH3 – Buzzer and electrode liquid for maintenance/storage.