Waterguru Sense S2 – Chlorine & pH Monitoring for Pools & HotTubs with Float Ring. This has been cleaned and ready for the next owner. No batteries or cartridges included. Will need batteries and requires the cartridges to test the pool water. Device performs the tests but with some inconsistentcy. Will need to use good quality batteries. All sales are final. By purchasing this item, you agree to this policy. Please note: Once the package is in the carrier’s possession, any delays are beyond our control. If? This listing is for a repeat item that has been relisted or has multiple quantities available, you can still expect the item to match the images and listing description. However, the external retail packaging may show minor, unavoidable shelf wear e. Slight scuffs, small dents, creases, or minor label variations. These external variations do not affect the item’s condition or performance. Whether new or used, product lifespan cannot be guaranteed. By purchasing this item, you accept the inherent risk associated with product longevity. By purchasing this listing, you acknowledge that you have read and agree to these terms and conditions.