ReviewsSalinity Instrument

Extech DO700 Portable Dissolved Oxygen Meter

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.

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RCYAGO Portable Dissolved Oxygen and Temperature Meter, DO Range: 0-40.00 mg/L, 0.1 mg//L Resolution, Digital Dissolved Oxygen Meter with Electrode Filling Fluid (No Backlight)

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. 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..
Adopts the digital screen display, which is more clear and convenien....

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AMTAST Waterproof pH/ORP/Conductivity/TDS/Salt/Temp Tester ORP Probe Meter

※ LARGE LCD DISPLAY: pH, ORP, Conductivity, TDS, Salinity and Temperature simultaneously. Displays Maximum/Minimum value and data hold..
※ Automatic Temperature Compensation (ATC) and degree ℃/℉ switchable..
※ Waterproof IP-57 standard and rugged design for field use conveniently. It can float on water..
※ Simple to calibrate by one keyboard. Low battery and consumption indicator. Auto shut off after 10 minutes of non use..
※ APPLICATION: Wide range of performing multifunctional testing on pH, ORP(mV), Conductivity(us), TDS(ppm), Salinity(ppm) and Temperature with a replaceable electrode. Note: This meter has ORP(mV) testing function..

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Ade Advanced Optics aaosal Professional Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium, Hydrometer, 0-100 ppt and 1.000-1.070 Salinity S.G.

Resale quality - 50 percent heavier than the soft case cheap units.
Automatic temperature compensating refractometer.
Aircraft aluminum body, premium optical lens, rubber eye guard.
Dual salinity scale - 0-local stock for fast shipment 100Ppt & 1.000-1070 salinity sg.

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Pen Type Salinity & Temperature Meter ATC NaCl Salt Water Quality Tester for Saltwater Aquarium Hydroponics Food

MEASURING RANGE: 0~9999 ppm or 10.0ppt~100.0ppt or 0.0%~10.0% or 0.950~1.080 (S.G.) based on NaCl with ±%F.S ±1 digit / ±0.5°C Accuracy.
DISPLAY: Dual Temperature and Salinity in four measurement units (ppm, ppt, %, S.G) / 30 x 18mm LCD Size.
APPLICATION: Salinity measurement in fish pond, tank, aquariums, laboratories, food processing, hydroponics, Aquaculture, and other water monitoring facilities..
FEATURES: Waterproof IP65 / One touch calibration / Auto power off and Non-Sleep mode disable / Multi points calibration.
POWER SUPPLY / SENSOR : 4 x LR44 button batteries.

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APERA INSTRUMENTS AI485 DO8500 Portable Optical Dissolved Oxygen Meter Kit Auto Compensation for Temperature Air Pressure and Salinity GLP Data Management

Equipped with state-of-the-art Optical DO sensor: measures dissolved oxygen level in a RELIABLE and EFFORTLESS manner.
Minimal maintenance required. Quick and easy calibration.
Automatic compensation for salinity, temperature& air pressure.
Glp data management, 500 groups of data storage, usb data output.
Comes with a complete test kit, including the meter, 10ft optical probe and salinity probe, a calibration cap, and a rugged carrying case.

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MY MIRONEY 2-Pack Salinity Tester Sea Hydrometer Salinity Meter Specific Gravity Test for Aquarium Fish Tank Water Marine Saltwater

If the specific gravity between 1.020-1.023,show that the specific gravity is nomal..
Designed with an automatic level function,can automatically identify the level to avoid errors..
The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result..
Fit for brackish and marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank..
The outside rang of scale indicates salinity(PPT). The inside range of scale indicates gravity. And with safe zone clearly indicated..

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Mares Puck Pro Plus Dive Computer Wrist Watch, White Black (414135-WHBK)

Super Intuitive, Easy-to-Use, Full-Featured RGBM Nitrox Computer, Larger-Display in Slimmer-Design, Upgradeable Firmware & Multi-Gas Capability..
Precision Stopwatch, Special Function Modes Air, Nitrox & Bottom Time, , Durable Metal Button, Upgraded Interface, Precautionary Programs Setting, Ascent Rate Indicator and Ascent Rate Digital Indicator..
Plan Mode, Backlighting, Log Book, 3-Level Salinity, Fresh Water Setting, Sea Water Setting, Aquarium Salinity Setting, Residual Nitrogen Memory Reset, Quartz Clock Movement..
User-Replaceable CR 2450 Lithium-Ion Battery, Fully Altitude Adjustable to 12,100' (3,700m) Memory Capacity 36 Hours, Superior Display Readability, Mineral Glass Crystal..
492' (150m) Depth Rating, Power Indicators, Audible Alarms, Watch, Date and Temperature Displays, 12/24 Hour Formats, Two-Different Gas Mixtures During-Single-Dive, Metric or Imperial Units of Measure..

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ZLYCZW 3 in 1 Multifunctional Water Quality Detector IP67 Handheld PH Meter Dissolved Oxygen/Conductivity/Salinity Test Dissolved Oxygen Meter

★ Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH,....
★ Conductivity, Salinity, TDS and D.O. Dissolved Oxygen in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
★ Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by well experienced manufacturer for Environmental Measuring....
★ Large LCD with multiple parameters display simultaneously: PH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..
★ Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..

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YCKYIGO Salt Water Pool Tester Large Range 7 in 1 Multi-Parameter Tester for Salt Swimming Pool and Spa

【Wonderful Helper for Pool Salinity Measurement】This salinity meter is perfect for testing the salinity of swimming pools. It helps you to detect the salt level in your salt system. Scale range: 0~9999 ppm/10.0~200 ppt and 0.00-25.00%..
【Detects Free Chlorine Levels】The ORP value is a measure of the oxidative power or sterilization strength in water pool salt. The higher the ORP value in water, the stronger the oxidative power and sterilization ability. The ORP's can reflect the residual chlorine (FAC) levels in the Saltwater pool..
【Highly Sensitive PH Probe】A low pH means the water is acidic, which can be corrosive to pool equipment and pool surfaces. It may also cause skin and eye irritation. A high PH value can greatly reduce the effectiveness of chlorine and cause the water to become cloudy. To avoid problems, it’s important to try and keep it within the ideal range of 7.4–7.6. This PH test pen will do the job perfectly..
【Platinum Electrodes for TDS】Total Dissolved Solids (TDS) is a measurement of all dissolved solids in pool water. The higher the TDS reading, the harder it is to maintain clea....

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APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp. Multi-Parameter Pocket Tester Kit

Measures pH/EC/TDS (ppm)/Salinity/Temp. in a quick and professional manner.
Replaceable multi-parameter probe with easy installation.
When the smiley face icon stays on screen, it's the right time to record the measurements..
LARGE Clear LCD screen with 3 backlit color (indicating 3 different modes), dual display of temp. + pH/EC/TDS/Salinity, and icons of completed calibrations and stable readings.
Complete kit with ready-to-use calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a portable carrying case.

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