Elevate your saltwater aquarium monitoring with the American Marine Pinpoint pH Probe. Specifically designed for compatibility with the PINPOINT® pH Monitor and the PINPOINT® pH Controller, this durable probe ensures accurate and non-toxic pH readings. Its swift response, coupled with a 10-foot cable and Ag-AgCl reference, guarantees precise measurements. Safely store your probe in the included bottle. Trust in American Marine for reef aquarium supplies that prioritize accuracy, making your coral reef aquarium maintenance a breeze.