Neptune Systems Lab Grade ORP Probe – Accurate ORP Monitoring neptune tester North American adapters provided for

North American adapters provided for compatibility

H2Ocean Classic Pro Reef Salt is a premium-quality aquarium salt trusted by reef hobbyists worldwide for its consistency

Lab-grade double-junction probes for accurate temperature and pH monitoring

Nyos Byotic effectively restores natural biological balance

Compatible with Neptune Systems DOS pumps

Neptune Systems Lab Grade ORP Probe – Accurate ORP Monitoring neptune tester North American adapters provided forThe Neptune Systems Lab Grade ORP Probe is designed to deliver precise and reliable oxidation reduction potential (ORP) readings for your aquarium. ORP measures your systems ability to oxidize and is especially important for aquarists using ozone, where accurate ORP monitoring is critical for safety and effectiveness. This probe is not to be confused with dissolved oxygen probes, as it serves a completely different and essential monitoring purpose.