Kent Marine 02120 Hydrometer

  • 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.
Check Stock

Salinity Refractometer for Aquarium, Marine Monitoring, Saltwater Testing, Dual Scale Salinity Tester 0-100 PPT& 1.000-1.070 Specific Gravity Saline Seawater Refractometer Hydrometer with ATC

  • DUAL SCALES - Saltwater Refractometer measures on specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰, you can get the result in two different units by one test.
  • WIDELY USE - The Refractometer designed for Aquariums, Marine Monitoring, Agricultural and Educational Purposes. Help you to control concentration of salt water easily.
  • EASY TO USE - Put 2-3 drops of sample solution after calibration on prism, towards light, then get the accurate readings. Aquarium refractometer is ideal for replacement salinity hydrometers or expensive digital salinity tester.
  • ATC FUNCTION - Aquarium hydrometer features Automatically Temperature Compensate function and always provide you accurate readings fast.
  • DURABLE & PORTABLE - Saline refractometer is made of aluminum and ABS rubber, anti-rust, non-staining and resistant abrasion, sturdy for long time use. Portable refractometer with plastic case easy to carry.
Check Stock

The EC Reader - 1950 - Birth of the New Trend (The Chronological EC Comics Review)

Check Stock

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.
Check Stock

Fluval Calcium Test Kit for Aquarium Water, Freshwater & Saltwater Fish Tank Test

  • 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.
Check Stock

YINMIK pH Salt ORP Tester, Digital pH Meter for Aquarium, 7 in 1 pH TDS EC Salt ORP S.G Temp Pool Salt Tester for Spa,Hot Tub,Home Brewing,pH ppm EC Meter for Hydroponics,ORP Meter for Drinking Water

  • ..., Sat and temperature with high precision at the same time which is a convenient and reliable manner for most regular water solutions' testing..
  • [pH and Salt Meter for Aquarium] Water quality of the fishpond is extremely important. Slight changes in pH, temperature or salinity may lead to serious consequences. YINMIK YK-7 water tester is expert in aquarium, testing pH, temp, salinity, tds. Save money and time for you..
  • [Salt Tester and pH ORP Meter for Pool&Spa] YINMIK YK-7 digital water quality meter is the ideal measuring instrument for every swimming pool owner who values optimal water quality. The YINMIK water pH tester combines ease of use and reliability with a compact design. It has pH, Temp, ORP and Salt functions, which can meet the daily monitoring of pools, spa, or hot tub..
  • [Digital pH EC ORP Meter for Hydroponics] Hydroponics is one of the most common applications for pH, TDS/EC meters. YINMIK YK-7 multi-parameter tester is an invaluable tool for measuring how far away your water is from needing more nutrients, a small boost, or to be completely changed out. Every gardener should have a YINMIK wa....
Check Stock

AERO-GRO 5-in-1 TDS/pH Meter - IP67 Waterproof 5 Functions pH TDS EC Salinity Temperature 0.01 Resolution High-Accuracy Pen-Type Tester for Hydroponics Water Wine Spas Aquariums White

  • [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....
Check Stock

Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

  • Measure salt water or salinity of water, ideal for aquariums and marine monitoring..
  • Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand..
  • Features automatic temperature compensation..
  • Comes with hard case, dropper, screwdriver, user manual and cleaning cloth..
  • The main part is made of chromium, it's very durable..
Check Stock

Apera Instruments PC60-E Replacement Probe for PC60 Multi-Parameter Tester

  • Measures ph, conductivity and temperature simultaneously.
  • Unique brush-resistant platinum black sensor ensures accurate conductivity measurement in a wide range (0.1 s - 20.00 ms).
  • Suitable for common aqueous solution, pure water and waste water's conductivity testing.
Check Stock