Best Aquarium Salinity Kit

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..

"Dry Hands" design avoids contamination of aquarium or water sample.
Accurate to 0.001 specific gravity and salinity (PPT) measurements.
Designed to give a temperature-corrected reading in warm water aquariums – 68°F to 85°F (20°C to 30°C).

Large numeric display includes sweet spot for marine and reef aquariums.
Water is gently diverted to bottom, reducing air bubbles from forming.
Designed to give temperature-corrected readings in warm water aquariums(68-degree to 85-degree F/ 20-degree to 30-degree C).
An easy way to gauge Aquarium salinity at a glance.

Measures on 2 Scales: Aquariums refractometer features Specific Gravity (D 20/20) 1.000-1.070sg and parts per thousand 0-100PPT (1‰=1ppt=1000ppm).
Seawater refractometer measures saltwater or salinity of water, ideal for aquarium, marine monitoring, fish-keeping,salty pools&spas and etc..
ATC Function: salty water refractometer with automatic temperature compensation, allow you obtain accurate readings easier and faster.
Salinity Refractometer is made of aluminum body and ABS rubber light and very sturdy, comes with a hard plastic case, a mini screwdriver, a dropper.
Easy to Use: put 2-3 drops on the saltwater’s prism, towards light then to get the accurate readings through the optic eyepiece, ideal for replacement the poor quality and difficult to read hydrometer refractometer.

DUAL SCALE - Salinity Refractometer measures on 2 scales: Specific Gravity 1.000 to 1.070 (D 20/20) and 0-1000PPT, which allow to get the both results at just one testing.
EASY TO USE - The aquarium refractometer need few sample, put 2-3 drops on prism and towards light source, you can get the the accurate readings quickly from eyepiece.
WIDELY APPLICATION - Brine refractometer can be used for measuring salt water, salinity of water and seawater, ideal for monitoring aquariums, Marine Fishing Keeping, Agricultural, lab experiment and Educational purposes.
ACCURATE & AFFORDABLE - Salt water refractometer features ATC (Automatic temperature compensation) function to ensure get consistently accurate reading. Easy to operate than traditional hydrometers and more affordable than digital refractometer.
DURABLE & PORTABLE - Saline (brine) refractometer is made of aluminium and rubber, non-rust, anti-abrasion and durable for long time use. Comes with plastic storage box, small screwdriver and cleaning cloth, easy to organize and carry with.

【5-in-1 Water Quality Tester】Salinity Meter, EC Meter, TDS , S.G, and Temperature tester. Salinity measurement range: 10.1~200.0ppt or 0.00-25.00%..
【High Precision】The pool salt tester has a sensitive electrode sensor and a high sensitivity probe to ensure fast and accurate response..
【Backlight Display】The water tester has a backlight LCD display that can display the measurement results clearly and intuitively. Simple operation and accurate measurement..
【Easy To Use】Just dip electrode into the saltwater pool or take a cup of sample for measurement, and then observe the results. The HOLD button locks the result for easy viewing..
【Wide Applications】This pool tester can not only detect the salt content of drinking water, swimming pool, and aquarium, but also can be used in seawater, marine, hydroponic, ect..

[5-in-1 pH METER] - Meter has a five-in-one function, which can measure PH, TDS, EC (Electrical Conductivity), Salinity %, Salinity ppm, and....
[Accurate pH Tester] - Featuring a solid glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. The pH meter uses a 3-point....
[TDS Measurement] - Fast and accurate TDS / PPM testing for hydroponics or anywhere TDS is critical. The TDS Range is 0~10,000ppm. Accuracy is ±2%..
[EC Measurement] - Measure Electrical Conductivity of either fresh or salt water..
[Saline % and Saline ppm Measurement] - Conveniently and easily keep track of saline levels by either percentage or ppm. Great for aquarium, saltwater....

Salinity Range: 0~9999ppm/10~200ppt or 0.0-25%, ORAPXI salinity tester has an automatic temperature compensation function(32°F~140°F), which can decrease the error caused by the change of liquid temperature..
Wide applications: There are various purposes for the salinity tester. This instrument can not only detect the salt content of edible salt, salt water pool and koi fish pond, but also the salinity of seawater, marine, salt water fish tank salt level testing..
Backlit design: There is no need to worry about seeing the displayed value if the light is insufficient. ORAPXI salinity meter features a green backlit LCD to help you see the measurement results clearly in any situation..
4-in-1 salinity tester: The multi-parameter Tester can test Salinity, TDS, EC and Temperature in an accurate, quick and reliable manner for most regular water solutions' testing. Support One-tap switch from salinity to TDS/EC..
After-sales: 30-day free return/replacement and we promise respond your any questions about the product within 12 hours..

Test calcium (Ca) and magnesium (Mg) level in water. Suitable for brackish water and seawater with the salinity higher than 5 part per thousand (ppt)..
For freshwater and marine aquarium and aquaculture, pond water, ground water, drinking water.
Ca range from 0 – 800 part per million (ppm) with the resolution of 40 ppm per drop. Mg range from 0 – 1725 ppm with the resolution of 50 ppm per drop..
Easy to use, accurate, fast test, economic.