Best Digital Hardness Tester

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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Hot Tub and Pool Test Set 13 in 1 - Professional Pool and Spa Water Testing for Home Easy to Use

  • MULTI-FUNCTIONAL: With our 13 in 1 water tester, you can test up to 13 water parameters such as pH value Chlorine(free/combined/total), Alkalinity (Acid Capacity), Cyanuric Acid (Stabilizer), Active Oxygen (MPS), Bromine, Chlorine Dioxide, Ozone, Hydrogen Peroxide LR, Hydrogen Peroxide HR, Total Hardness, Calcium Hardness, Urea. You only need our water tester to test the 13 water parameters..
  • FREE SOFTWARE: Our electronic water tester comes with free software that you can use in your PC and MAC. You can also use the free app for iOS and Android. You also get a free cloud service to help you synchronize data between your smartphone and computer. The cloud service also helps you store the data and make it easily accessible when you need it..
  • POWER EFFICIENT: The electronic photometer doesn’t need a lot of battery power to work. It comes with 3 x AAA batteries that can run the water tester for a long time before replacing them. Our water tester is just what you need in your home or even in your pool business..
  • EASY TO USE: You don’t need to hire a professional to help you use our water tester. Our water tester comes with a user manual that is easy to read and understand. The user guide is written in five languages English, German, F....
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Hofun TDS Meter, 3 in 1 TDS, EC & Temperature Meter, Accurate & Reliable PPM Meter, Digital Water Testing kits for Drinking Water Quality, Tap, Well, Swimming Pool, Aquarium, RO/DI System, Hydroponics

  • ... updated technology. Three different measurement needs can be fulfilled by one water tester meter. Not only been convenient for you, but also saves your time and money, absolutely a helpful water test kit for your water safety at home..
  • ✔[ EASY READING BIG BACKLIT LCD DISPLAY & QUALIFIED WATER TELLER ] Hofun water hardness test meter with Big Backlit LCD is far superior than most digital water quality tester display, which allows wider angles of data reading and night reading. Besides, Red backlight ( ppm figure over 40 ) means non-drinking water. Green backlight ( ppm figure below 40 ) indicates TDS figure qualified for direct drinking water (Notes: International standard adopted TDS figure 40 as a dividing line.).
  • ✔[ EASY OPERATION & ENERGY SAVING ] Hofun ppm meter allows one button operation, just turn it on and put tds meter into water, you can get stable and accurate data in seconds. Besides, there is a reference chart at the back of this test meter for tds figure explanation..
  • ✔[ YOUR PURCHASE IS WELL-PROTECTED ] Hofun water hardness test meter is manufactured under extra high standards and of super good quality. Thus we have absolute confidence of our water test meter and will always stand by our products..
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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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Hot Tub and Pool Test Set 13 in 1 - Professional Pool and Spa Water Testing for Home Easy to Use, Bluetooth, App, Support (PoolLab 1.0+Replacement Cuvette)

  • MULTI-FUNCTIONAL: With our 13 in 1 water tester, you can test up to 13 water parameters such as pH value Chlorine(free/combined/total), Alkalinity (Acid Capacity), Cyanuric Acid (Stabilizer), Active Oxygen (MPS), Bromine, Chlorine Dioxide, Ozone, Hydrogen Peroxide LR, Hydrogen Peroxide HR, Total Hardness, Calcium Hardness, Urea. You only need our water tester to test the 13 water parameters..
  • FREE SOFTWARE: Our electronic water tester comes with free software that you can use in your PC and MAC. You can also use the free app for iOS and Android. You also get a free cloud service to help you synchronize data between your smartphone and computer. The cloud service also helps you store the data and make it easily accessible when you need it..
  • POWER EFFICIENT: The electronic photometer doesn’t need a lot of battery power to work. It comes with 3 x AAA batteries that can run the water tester for a long time before replacing them. Our water tester is just what you need in your home or even in your pool business..
  • EASY TO USE: You don’t need to hire a professional to help you use our water tester. Our water tester comes with a user manual that is easy to read and understand. The user guide is written in five languages English, German, F....
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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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Pool and Spa Water Test Kit 13 in 1 - Professional Pool and Spa Water Testing for Home Easy to Use, Bluetooth, App, Support -Works with Solid or Liquid reagents

  • ... MULTI-FUNCTIONAL: With our 13 in 1 water tester, you can test up to 13 water parameters such as pH value Chlorine(free/combined/total), Alkalinity (Acid Capacity), Cyanuric Acid (Stabilizer), Active Oxygen (MPS), Bromine, Chlorine Dioxide, Ozone, Hydrogen Peroxide LR, Hydrogen Peroxide HR, Total Hardness, Calcium Hardness, Urea. You only need our water tester to test the 13 water parameters..
  • FREE SOFTWARE: Our electronic water tester comes with free software that you can use in your PC and MAC. You can also use the free app for iOS and Android. You also get a free cloud service to help you synchronize data between your smartphone and computer. The cloud service also helps you store the data and make it easily accessible when you need it..
  • POWER EFFICIENT: The electronic photometer doesn’t need a lot of battery power to work. It comes with 3 x AAA batteries that can run the water tester for a long time before replacing them. Our water tester is just what you need in your home or even in your pool business..
  • EASY TO USE: You don’t need to hire a professional to help you use our water tester. Our water....
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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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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 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

  • [7 in 1 Digital pH TDS EC Meter] YINMIK YK-7 water quality tester can measure pH, TDS, EC, ORP, S.G, 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 mor....
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Isoflex Topas L32 1 X 370g Cartridge

  • Hardness Tester: Determine material hardness with this hardness testing file set by sliding the file across the object's surface.
  • Color-Coded: The file toolset, with six color-coded files, indicates hardness from 40 to 65 HRC.
  • included chart also shows the appropriate Vickers Hardness (HV).
  • Easy to Store: The hardness test kit comes conveniently packaged in a leath­er-like case with a Velcro-lined flap.
  • the files are approximately 0.157" in diameter and 7" in length.
  • Set Includes: Six color-coded files indicate hardness from 40 to 65 HRC and a vinyl case.
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Diode Check

  • ... has a built-in 10 amp circuit breaker, the input current can be reversed to form a loop power supply, and it automatically trips when the current exceeds 20A, protecting the equipment and extending its life..
  • 【Injector Tester & Injector Cleaner】CODIAG GT 101 Power Digital Tester has a DIY injector cleaning adapter kit, which supports DIY cleaning of injectors. When the fuel injector is driven to open and close, and the current shows a normal value, it means that the fuel injector is normal. If it does not move or the current display is abnormal, it means that the injector is damaged. When checking the injector for clogging, it can be cleaned by cleaning the pressurized tank with the injector..
  • 【20ft Test Cord & Color Display & Torch】Car circuit tester with 20ft extension cord, powered by car battery or cigarette lighter, extension cable port extension provides excellent accessibility for testing along the vehicle. With a digital color display, you can clearly read the voltage and current data. Built-in flashlight and LED bi-color light make it easy to work even in dark or low light conditions..
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