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Diamond Tester Pen,High Accuracy Jewelry Diamond Tester＋60X Mini LED Magnifying Jeweler Tool Kit,Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter- 9V Battery Included

  • ■【Intuitive Design】Hqdz-td Diamond Tester Pen comes with LED lights and audio indication. During a test, if the stone tested is a diamond, the LED lights will light up as the stone passes each test conducted by the Diamond detector. Once our Diamond Tester Pen has completed all of its tests, the pen will make a beep sound as well as show a row of fully lite LED lights..
  • ■【Simple to Use】Hqdz-td Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen detector.
  • place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient) and If the stone is fake, crystal or cubic zirconia, the tester will not beep..
  • ■【Fast Results】Hqdz-td's Diamond Tester Pen is design to deliver fast, accurate results. You will be able to know if something is fake in a matter of seconds..
  • ■【Portable】Hqdz-td Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit into any purse or backpack.Diamond Tester Pen and 60X LED Lighted Loupe combo is a must have tool kit wh....
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Best Sellers Diamond Tester Pen＋60X Mini LED Magnifying,High Accuracy Jewelry Diamond Tester Tool,Environmental Protection 9V Battery,Professional Diamond Selector for Novice and Expert

  • ✔【Intuitive Design】Hqdz Diamond Tester Pen comes with LED lights and audio indication. During a test, if the stone tested is a diamond, the LED lights will light up as the stone passes each test conducted by the Diamond detector. Once our Diamond Tester Pen has completed all of its tests, the pen will make a beep sound as well as show a row of fully lite LED lights..
  • ✔【Simple to Use】Hqdz Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester Pen detector.
  • place the tip of the Diamond Tester on the gem stone (lightly pressed is sufficient) and If the stone is fake, crystal or cubic zirconia, the tester will not beep. To determine the clarity of a diamond use 60X LED lighted Loupe, magnifying glasses..
  • ✔【Fast Results】Hqdz’s Diamond Tester Pen is design to deliver fast, accurate results. You will be able to know if something is fake in a matter of seconds..
  • ✔【Portable】Hqdz Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit into any purse or backpack. Hqdz’s Diamond Tester Pen and 60X LED Lighted Loupe combo is a must have tool kit when you are going to a garage sale, flea market, swap....
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Ammonia Gas Detector,0~100PPM NH3 Concentration Tester, Air Quality Humidity Temp Reader with Alarm for Home Decoration,Poultry Farm,Industry (AIOMEST AI-5800G)

  • ✅【High Accuracy】-Measuring ammonia gas range 0~100PPM, with resolution of 0.1PPM and high accuracy +/- 2%, this air quality meter works well in continuous monitoring NH3 in real time..
  • ✅【Double Alarm】-Installed with light/sound alert, when the ammonia intensity reaches the alarm value (AL1, AL2) you set, AI-5800G will remind you to take necessary action, with both red light indicator and buzzer..
  • ✅【Wide Applications】-Combing temperature and humidity function in one, this particle tester shows ambient humidity and temperature -4~122℉(-10 ~ 50℃) on the large color LCD screen simultaneously, great for home decoration, mining, poultry pig farms..
  • ✅【Long Service-Life】-Built-in 1600mAh large capacity rechargeable battery, this ammonia tester provides longer service time. Recharge the instrument with USB cable (included), when low battery indicator appears..
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Diamond Tester and 60X LED Magnifying Glasses Jeweler Tool Kit Combo，for Novice and Expert - Diamond Selector II 9V Battery Included Diamond Tester

  • ■【Intuitive Design】Yhkj Diamond Tester Pen comes with LED lights and audio indication. During a test, if the stone tested is a diamond, the LED....
  • ■【Simple to Use】Yhkj Diamond Tester Pen is simple to operate to get results, professional(s) are not required. Simply turn on our Diamond Tester....
  • ■【Fast Results】Yhkj’s Diamond Tester Pen is design to deliver fast, accurate results. You will be able to know if something is fake in a....
  • ■【Portable】Yhkj Diamond Tester Pen and 60X LED Lighted Loupe each comes with its own convenient carrying cases. Both items are small and can fit....
  • ■【Application Range】Diamond,Stamp, Jewelry, Appraisal, Education, Geography, Home And Office..
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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)

  • SPECIAL EDITION: Our water tester comes in a modern and improved edition to give you accurate results. The pool lab Photometer 13 in 1 gives you a modern solution for professional water analysis in whirlpools and pools. It has 6 quick access buttons for personal measuring methods..
  • 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 ho....
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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

  • SPECIAL EDITION: Our water tester comes in a modern and improved edition to give you accurate results. The pool lab Photometer 13 in 1 gives you a modern solution for professional water analysis in whirlpools and pools. It has 6 quick access buttons for personal measuring methods..
  • 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 ....
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CHEINAUTO Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges Engine Compression Leakdown Detector Leakage Test Set for Gasoline Engine

  • 【UNIVERSAL FITMENT】Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. check the....
  • 【FEATURE】Designed to detect a variety of common engine faults such as worn piston rings, cylinder head cracks, worn valves and blown head gaskets.....
  • 【WORKING PRINCIPLE OF LEAKDOWN DETECTOR】 Once the leakage tester has been connected to one of the cylinders, compressed air (45-100psi) is fed....
  • 【PROFESSIONAL LEAKAGE DETECT FUNCTION】: This cylinder leak tester checks the amount of leakage in an engine cylinder and helps determine the....
  • 【EASY TO USE】Remove the Schrader valve and turn the regulator off before applying shop air. Install the hose to the cylinder, the unit to an air....
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OTC Water Pump Holding Tool

  • Coolant pressure tester kit includes 3 tools set, radiator leakage detector, coolant refill tool and thermometer. 17PCS specific adapters and 1 universal cone rubber adapter, to connect almost all types of radiator openings on the domestic and imported vehicles, help to check the leak of water tank and fill the coolant under vacuum environment. There are also 3PCS radiator cap adapters and 2PCS connectors for testing the leakage of the radiator caps..
  • Manual vacuum pump pressure checker uses high quality aluminium cylinder, much harder than regular plastic one. 21" long rubber hose, brass parts, anti-corrosion and durability. 3" large dials with color coded small scale range 0-35PSI, very easy to observe. Use the hand pump tester to pressurize the radiator/cap and observe whether the pointer drops over time to confirm a system leak..
  • Cooling system coolant filling manifold tool adopts superior brass manifold body with plastic cover, and 18" long rubber hose, brass parts for anti-corrosion and durability. The pneumatic vacuum refiller firstly uses the workshop air to pump the cooling system and form a vacuum, and then pumps the coolant into the system. Add coolant under vacuum environment, there is no large cavitation, avoid engine warping and other dam....
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VCT Diesel Engine Compression Cylinder Pressure Tester Gauge Set 0-1000 psi

  • Check compression on most domestic and foreign diesel engines, this compression tester reads pressure from 0-1000 PSI..
  • Featuring a quick-connect adapter, gauge and a thumb button air release, this compression tester comes with adapters for GM, Ford, Lincoln, Isuzu,....
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