The Apera Instruments 5052 Salinity Meter offers fast, precise, and easy salinity testing for seawater, making it ideal for use in saltwater aquariums, aquaculture operations, and environmental monitoring. It utilizes Apera’s unique platinum-coated electrode and automatic temperature compensation (ATC) for consistently reliable results across a wide range.

With an accuracy of ±1.5% F.S. from 0 to 100 ppt, this meter outperforms traditional hydrometers and refractometers. You can simply immerse the meter into seawater to obtain a stable reading in just 10 seconds, with no sampling or flushing required between measurements.

The 5052 meter is based on the Practical Salinity Scale 1978 (PSS-78), the globally accepted benchmark for salinity data used by oceanographic institutions. Minimal calibration is needed—once per month is enough, and a 50 mS/cm calibration solution is included.

Key Features:

✔ Wide Measurement Range – 0 to 100 ppt (100,000 ppm) with ±1.5% F.S. accuracy
✔ Practical Salinity Measurement (PSS-78) – Industry standard for oceanographic applications
✔ No Sampling Required – Direct immersion and instant results in 10 seconds
✔ No Rinsing Between Tests – Saves time in repeated measurements
✔ Platinum-Coated Electrode – Long-lasting and high-precision sensor
✔ Automatic Temperature Compensation (ATC) – Reliable performance in varying environments
✔ Low Maintenance – Monthly calibration is sufficient for accuracy
✔ One-Button Operation – User-friendly and efficient
✔ Auto Power-Off & Low Battery Reminder – Smart energy management
✔ Warranty – 2 years on the meter, 6 months on the electrode

A Complete Set Contains:

✔ 5052 Salinity Meter
✔ 2 x AAA Alkaline Batteries
✔ 50 mS/cm Calibration Solution
✔ Protective Carrying Case