Reviews Salinity Measurement

Seawater Salinity Refractometer,V-Resourcing Automatic Temperature Compensation Sea Water Salinity Measurer for Aquarium, Hydrometer, 0-100ppt & 1.000-1.070 Salinity Specific Gravity

Automatic Temperature Compensation: 10℃~30℃.
Measuring range: salinity: 0-100 ‰, Specific Gravity : 1.000 to 1.070.
Minimum scale: salinity: 1 ‰, Specific Gravity : 0.001.
Resolution: salinity: ±1‰, Specific Gravity : 0.001 mm.
Perfect for salty water tank and aquarium, seafood water tank, salty pools & spas and etc.

...o the concentration of molecular oxygen dissolved in water, generally expressed in mg/L (ppm) and saturation percentage (%), which is the percentage of dissolved oxygen in 1L of water. when measuring and calibrating, needn't open the protective cover of the electrode, just put the electrode in the solution for measurement..
Bluetooth dissolved oxygen meter with accurate real-time Bluetooth data transmission and clear measurement values. It allows you to save, manage and share test data at any time without worrying about data loss..
Detachable probe, easy to replace, equipped with 6 probe protective covers. The film inside the protective cover cannot be taken apart. After using for a period of time, the test value is inaccurate and the calibration is still inaccurate, and the membrane sleeve needs to be replaced..
Digital dissolved oxygen meter fully customizable parameter settings. set do max or min limit values according to the user's requirement. If testing results are out of range, the digits will display in red, notifying you of any values exceeding your preset range..

It is designed for the measurement of seawater or low concentrated saltwater..
Dual scale: 0-100‰ salinity and corresponding specific gravity 1.000-1.070.
Automatic temperature compensation function minimizes the effect of the temperature on testing result..
Easy to Use: It's very easy to use even for new users. And no battery needed..
Ideal for marine fishkeeping aquarium, saltwater pool, marine monitoring,lab,agricultural, gardening and educational purposes..

Measures dissolved oxygen concentration/saturation, pH, mV, conductivity, TDS, salinity, resistivity and temperature.
Automatic salinity compensation and manual barometric pressure compensation for DO measurements.
One button pH calibration (4, 7, and 10pH).
Choice of 3 point pH calibration for better accuracy.

Dissolved oxygen meter is a precision instrument for measuring dissolved oxygen and temperature. The dissolved oxygen probe is a thin film with a polarographic sensor and a thermistor for temperature measurement and temperature compensation. The permeable membrane separates the measured solution from the sensing electrode but allows oxygen to pass through the membrane to react, and the concentration can be measured..
Dissolved oxygen refers to the concentration of molecular oxygen dissolved in water, generally expressed in mg/L (ppm) and saturation percentage (%), which is the percentage of dissolved oxygen in 1L of water. The oxygen concentration of our dissolved oxygen meter is 0.0-40.0mg/L, most of the range of dissolved oxygen meters on the market is 0.0-20mg/L. When measuring and calibrating, needn't open the protective cover of the electrode, just put the electrode in the solution for measurement..
Detachable probe, easy to replace, equipped with 6 probe protective covers and anaerobic water calibration powder. The film inside the protective cover cannot be taken apart. After using it for a period of time, the test value is inaccurate and the calibration is still inaccurate, and the membrane sleeve needs to be replaced..

APERA’s unique Replaceable Platinum Black sensor ensures high accuracy and consistency in a wide-range conductivity measurement.
EASY Auto. Calibration with auto buffer recognition.
Auto Temp. Compensation (ATC) ensures accuracy in variant temperatures (0-50. 0˚C).
LARGE LCD with 3 backlit color (indicating 3 different modes), DUAL Display of temp. /EC, and indications of completed calibrations and stable readings.
One-tap switch from conductivity to TDS/Salinity with customizable TDS factor (0. 40-1. 00).
Complete kit with READY-TO-USE calibration solutions, calibration vials, AAA batteries, and a lanyard all in a portable carrying case.

Professionally measuring pH, conducitivity, TDS, salinity, resisitivity, and temp. has never been easier.
also tests ORP (The ORP60-DA probe is needed).
Cloud-based data management system – allows you to record, manage, and share your test data at your finger tips, and never have to worry about data loss..
Comprehensive Information Display – 4 types of measurement display modes to serve you in different situations..
Upgraded pH sensor – More durable and easier to use.
Hybrid design – This product can be used as a classic tester even without connecting to a smartphone..