Reviews Aquarium Salinity Checker

AMTAST Portable Dissolved Oxygen and Temperature Meter DO Sensor Dissolved Oxygen Levels Tester DO Range 0~20.00 mg/L 0~20.00 ppm

LCD Displays DO or Saturation O2 and Temperature simultaneously. Displays Maximum/Minimum value and data hold..
Ideal for measuring dissolved oxygen levels and temperature in wide range, aquarium, school teaching experiment, lab sterile environment, aquaculture, scientific research etc..
Automatic Temperature Compensation, Manual Salinity (MSC) and Altitude (MAC) Compensation, and degree ℃/℉ switchable. Icon DO O2 and unit mg/L, ppm, %, ℃, ℉ for recognition easy during select function mode. Easy to replace DO probe module by user..
Waterproof IP-57 standard and rugged design for field use conveniently. It can float on water..
Low battery and consumption indicator (Batteries NOT Included). Auto shut off after 10 minutes of non use. Note: The display could not auto shut off under MAX/MIN mode..

EZ Grow Systems 5in1 Water Multifunctional Tester can test PH, TDS,EC, salinity and temp of distilled water and drinking wate.
Water hardness test kit have been calibrated, It can be used normally for one year. Operation temp is 0.1-60 ℃ (32-140℉). the test error is....
Automatic temp compensation(ATC) Fast calculation, backlit LCD, Easy to read data, The water hardness test kit Small appearance, easy to carry.....
EZ Grow Systems 5 in 1 multifunctional water quality tester is suitable for drinking water, water osmotic system, hydroponic plants, aquarium water....
When LCD display is fuzzy, The battery needs to be replaced. The battery model is LR44, 1.5V*3,Pay attention to “+”&”-“..

Why limit yourself to just one digital test, when you can have FIVE? This multi-function all in one PoolMeter digitally checks your pool salt level instantly. No more waiting for results to ensure your pool has everything it needs to stay clean and balanced. Recommended salt levels are 2700-3400 ppm..
Braxlee Pool Meter also comes with the advanced feature to check your pool and spa PH levels. Pools and Spas should be between 7.2-7.8..
The 5 in 1 PoolMeter tests for Salinity, PH, TDS, EC, and Temperature and can also be used for many other applications including: measuring content of edible salt, seawater, koi fish pond, marine waters, and aquarium tank testing..
The large display feature with backlight will ensure easy reading of results. The automatic shutoff feature will help save battery and will store the memory of your last test. The small hydrometer is easy and light weight to carry around for any quick test..
We want this product to make your life easier and if you aren't satisfied or need an exchange for any reason we have a 30-day free return policy..

●Provide precise salinity reading. ●Easy in operation and salinity reading. ●Smooth water flow design prevents the attachment of fine bubbles to increase measurement accuracy..

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.

The thread checker is an accurate and easy-to-use thread verifier for both nuts and bolts.
Conveniently assembled onto a wire loop, it is especially well suited for distinguishing between similar inch and metric Threads.
Each size has a nut and bolt checker on the same gauge.
Bolt and nut thread checker, bolt length and screw size checker in both metric and standard sizes.
Pre-drilled for easy mounting (top and bottom).

Package contents: you will receive forty-eight wooden checker pieces in different colors, not only suitable for checker playing, also backgammon.
Wood material: these checker pieces are constructed in quality wood material, with smooth round edge, very safe to use and play, stable and serviceable enough to be applied multiple times.
Dimension: each checker piece measures approx. 1.06 inches in diameter, suitable for most checker board games, with stackable bridge design which ensures good organization and add more fun to your life.
Practical and convenient: there is a drawstring storage pouch for you to store these checker pieces, very convenient to carry to places you like, practical enough without much worries about missing.
Versatile checkers: we provide you with versatile checkers pieces which can be applied for a variety of board games, your social skills like verbal communication, patience, sharing will be enhanced, you can also have a good time with your friends.