The Neptune Systems Double Junction ORP Probe is built for longevity, reliability, and accuracy. Unlike traditional lab-grade probes, the double junction design isolates the reference gel from proteins and organics that can clog and contaminate the sensor. This results in longer probe life, fewer calibrations, and more stable readings—making it an ideal replacement or upgrade for your aquarium monitoring system.
Double Junction Design – Prevents contamination of the sensing element for longer-lasting performance.
Reliable Readings – Provides stable and accurate ORP measurements with reduced drift.
Universal Compatibility – Works with Neptune Apex and any monitor or controller using a BNC-style connector.
Durable Construction – Lab-grade probe designed to withstand continuous use in aquarium environments.
Low Maintenance – Requires calibration less frequently than standard probes.
Type: Double Junction Lab Grade ORP Probe
Connection: BNC-style connector
Cord Length: 10 ft.
Compatibility: Neptune Apex and other controllers/monitors with BNC connectors
Calibration: Recommended every 60–90 days (calibration solutions sold separately)
(1) Neptune Systems Double Junction Lab Grade ORP Probe with 10 ft. cord