ReviewsDigital Aquarium Tester

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.

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Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.

✔ACCURATE AND RELIABLE: To achieve high accuracy, equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures..
✔MULTIFUNCTIONAL AND UPGRADED: Professional TDS, EC and Temperature Pen 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use..
✔EASY AND INSTANTLY: Just turn TDS meter on and stir water gently, then stabilized readings will be auto-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 2 minutes..
✔MULTIPURPOSE TDS TESTER: Test the purity of drinking water to ensure it's healthy, monitor if Reverse Osmosis (RO)/DI System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), pool and spa, etc..
✔3 YEARS WARRANTY. And we offer 90 days Money Back Guarantee if not totally happy with the digital TDS water tester meter..

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allsun EM480D Digital Earth Tester Insulation Resistance Tester Ground Resistance Meters Earth Ground Resistance Tester Measure AC Voltage to 200V with Backlight Display

【WIDELY USED】This digital earth tester can measure grounding resistance as well as AC voltage to 200V, and it also can be used in the grounding resistance measurements of power system, electrical device, lightning protection device, etc. What’s more, it is also equipped with dust proof and moisture proof structure, which make it can be used in field operation..
【ACCURATE & RELIABLE & EASY】This digital earth tester has improved the circuit, structure as well as process of the traditional grounding resistance tester so that its functions are more complete, the accuracy is much higher, and the operation is more convenient and reliable..
【OVERLOAD PROTECTION】This digital earth tester has a complete overload protection circuit that any two terminals can withstand AC 380V for a minute..
【EXCELLENT DESIGN】The appearance design of this digital earth tester is both beautiful and practical. The instrument panel function keys are clear and reasonable in layout..
【EASY READING】This digital earth tester has not only large and clear 3. 5 inch LCD display, but also backlight display..

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Vertlley Heavy Duty 3-48V Test Light Digital LCD Backlight Display Circuit Tester with 140 Inch Extended Spring Wire Car Truck Vehicles Automotive Low Voltage Backlit with Voltmeter Stainless Probe

... and circuits. This is also a test light with voltmeter..
【HIGH-QUALITY AND HEAVY DUTY】The automotive test light is made of cellulose acetate. It is tougher and not easily broken than ordinary materials. This automotive circuit tester is larger and heavier than ordinary test lights on the market..
【ACCURATE LCD DIGITAL DISPLAY】The 3-48 volt test light is equipped with a digital backlit LCD. The digital light tester can resolution to 0.1V voltage reading on blue/white back light LCD digital display, with high accuracy to 0.1V. This digital voltmeter is very convenient for checking or maintaining vehicles at night or in dark places. (Two back light colors are shipped randomly).
【MORE CONVENIENT TO USE & CARRY】The 3-48v test light uses high-quality 140-inch (3.6m) PU spring wire with a large alligator clip. It is convenient to operate this tester light with one hand. This car fuse tester light is small in size and easy to carry around..
【DURABLE INSULATION】This circuit tester is equipped with pure copper clips and insulating sleeves, which can better clamp the body and screws. Insulated operation can avoid electric shock..

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3-48V Digital LCD Display Circuit Tester with 140 Inch Extended Spring Wire Car Truck Vehicles Low Voltage Tester with Testing Stainless Probe and Ground Clamp

Digital LED automotive circuit tester widely used in checking various vehicles electrical circuits, such as automotive....
3-48V digital LCD display circuit tester, multifunctional household test pen, you can use it to test circuit（locating shorts grounds and open....
3-48V circuit tester made of high quality electronic materials, LED reading display is clear and accurate, 140 inch extension PU spring wire with....
Heavy duty 3-48V digital LCD circuit tester, low voltage circuit tester, 12 volt digital test light, 12 volt test light, 12 volt test lights, 12 volt....
100% satisfactory service, if you have any questions, please feel free to contact us by email!We will solve it for you in the first time..

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Sper Scientific 860040 Turbidity Meter

✅High Accuracy&One-Button Lock Reading Function - With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. High-accuracy algorithm chip and electrode of our digital water ph tester ensure accurate and fast response.One-button lock reading function helps lock reading even if the tester is taken out of the sample!.
✅Automatic Calibration - The digital ph meter for water uses a 3-point AUTOMATIC calibration method, calibrating the electrode to solutions of pH 4.00, pH 6.86, and pH 9.18 to ensure the accuracy of your measurements..
✅Automatic Temperature Compensation - No longer need to pay attention to the temperature of testing liquid, Allprettyall ph tester digital can accurately determine the pH value of the sample in the temperature range of 0 °C-60 °C (32 °F-140 °F), so as to solve the inaccurate problem caused by changing the liquid temperature..
✅Wide Application-Allprettyall water quality tester designed in pH and temperature can be measured simultaneously with high precision. Omni-directional measurement of water quality to ensure the health of water quality! The ph meter digital water tester is ideal for drinking water,daily household,hydroponics,sewage, lab teaching and ANY water sample..

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Alcohol Breathalyzer Portable Breath Tester LCD Display Digital Alcohol Test Detector Breath Alcohol Analyser Tester Breathalyser Lie Detector Blue Color ABS Material

>>>[Function]: Breathalyzer Keychain Digital Alcohol Tester Detector is used to measure the alcohol concentration in the human body. This portable breath tester uses a sensitive semiconductor sensor that can quickly give results to judge whether you can drive..
>>>[Fashionable Keychain Design]: Breath Analyzer saves space and is light in weight. It is easy to hold and carry. The pocket size allows you to carry it anytime, anywhere to ensure safe driving after drinking..
>>>【High precision and sensitivity】: This alcohol breath tester can be used to measure the alcohol concentration in the human body. Built-in sensitive semiconductor sensor, detection range: 0.00-0.19% BAC 0.0-1.9g/l (or 0.00-0.95mg/l BRAC). It can quickly give results within 3-5 seconds to judge whether you can drive, and provide you with high-precision test results. (The error is less than 0.01% BAC).
>>>[Large Digital LCD Screen]: Digital LCD Screen Alcohol Breath Tester uses a large LCD screen, which can clearly display....

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Aquarium Pharmaceuticals 30B pH Down Aquarium pH Adjuster 16 oz Model Number 17163020301

［✔Wide Use］Ideal for home or laboratory use, drinking water, swimming pools, aquarium, fish tank, RO system or hydroponics..
［✔High accuracy］pH meter has a sensitive electrode sensor, simply press "ON", It only takes a few seconds for your result to appear on....
［✔Automatic Temperature Compensation］The pH tester has ATC function, so it can be adjusted according to water temperature to give pH readings....
［✔Easy to Calibrate］Use "Calibration Buffer Powder" to calibrate the tester with one button. pH tester bright backlit LCD display, you can still....
［✔User Friendly］Comes with protective case, lightweight, handheld design for portability and convenience. What You Get: 1x PH meter, 1x user....

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Watris Veiyi Pool Salt Tester, 5 in 1 Salinity/Temp/EC/S.G/TDS Meter, Digital Pool Water Tester, High Accuracy Salinity Meter for Swimming Pool, Aquarium, Saltwater

【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..

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DIYmall HJ Digital RC Servo Tester ESC Consistency Tester Speed Controller for RC Helicopter Airplane Car Motor Throttle Display

1 X HJ Digital Servo Tester / ESC Consistency Tester.
4CH tester servo: It can control 4 servos at the same time.
50H analog servo signal cycle 20us frequency 50Hz,125H digital the steering gear a signal cycle 8us frequency 125Hz.
250H Digital Servo signal cycle 4us frequency 250Hz.

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YINMIK Water PH Meter, 3 in 1 PH TDS Temp Pen Type Tester for Home Brewing, PPM Water Tester with Backlight for Water Purifier, Home Wine Beer Making, Pool, Hot Tub, Aquarium, Hydroponics, RO System

...H, TDS (ppm) and Temp of the water quality at the same time, and know whether the water quality is healthy in seconds..
【Multipurpose PH Tester】Widely used in drinking water, home brewing, wine, beer, milk, kombucha, coffee, home tap water, RO/DI Water, alkaline water filtration system, swimming pools, hot tubs, aquarium, reef tank, koi ponds, fish tanks, water hydroponics, urine etc. It is very suitable for family use and is a good choice for the health of family and friends..
【Extra Value PH Tester】Including 1x PH tester, 1x English manual, 3x 1.5V (LR44) button batteries, and 6x PH calibration powders(4.00x2+7.00x2+10.01x2)..

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