Electronic Specialties 182 Fundamental Electrical Troubleshooting Book

  • Complete 200-page guide to every aspect of electrical troubleshooting explained in a way that makes it useful in the shop.
  • Written by a mechanic for real-world, hands-on testing including voltage drop explanations and corrosion causes.
  • Batteries and testing fully explained including information on relays, potentiometers, resistors, solenoids, and more.
  • Voltmeters fully explained including workarounds such as finding shorts, battery draws, and how-to-read schematics.
  • Applications of knowledge to automotive, heavy-duty, equipment, machinery, and marine electrical system.
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Alesuc Diamond Tester II V2 Selector Gemstone Jewelry Gems Tool with Case for Testing Novice and Zircon or Glass Diamond Selector II

  • Alesuc Diamond Tester is designed for quick, precise, and safe diamond testing.
  • This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake,....
  • If stone is Fake crystal, a simulant such as cubic zirconium ( CZ ), will be no reaction.
  • Diamand tester is powered by DC 9V battery x 1 (Not Included).
  • Package Included: 1 * Diamond Tester(no battery included).
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Battery Tester EBC-A40L 5V40A Battery Tester Lithium Polymer Power Battery Capacity Tester 110V

  • ...wer is 200W, stable operation, large accuracy of measured voltage and current, small error. Equipped with high-current high-precision current clamp, on-site measurement of capacitors without removing the connecting wires simplifies the testing process, effectively improves efficiency and avoids damage to electrical equipment..
  • 【Volume Measurement】Within 10Ah, the resolution is 0.001 Ah.
  • 【Excellent Quality】This battery capacity tester is made of high quality metal, which is sturdy and durable, and the surface is polished and painted with great care, so that it is not easy to oxidize and rust. The internal design has a fan cooling system to ensure effective heat dissipation, guaranteeing product performance and safety in use..
  • 【Wide Range of Applications】This lithium polymer power battery capacity tester has superior performance and is very suitable for mechanical industry, automotive industry, construction industry, electronic industry and power plants. It is small in size, light in weight, and easy to carry around, making it ideal for use when working outside..
  • Current Range: 0.1- 40A ( Max charging current is....
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Exell Battery L28PX Fits Yashica Electro 35 Rangefinder Canon AE-1 Nikon EL2

  • COMMONLY USED IN: vintage camera equipment to sophisticated testing equipment Boehringer-mannheim TRACER, Bronica SQ, Super Power Infra Red Aiming....
  • REPLACES: 1406LC, 2CR1/3N, 2CR11108, CR28L, K28L, L544, L544BP, PX28L, V28PXL.
  • REPLACEMENT BATTERIES: This battery pack is great for many different household applications. Add it to your electronic supplies today so you can....
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Digital Resistance Ground Earth Tester UT501A 1000V Insulation Resistance Tester Earth Ground Resistance Earth Ground Resistance Meter Multimeter Voltmeter Earth Resistance Tester

  • MULTI-FUNCTIONAL MULTI-METER INSULATION TESTER--This insulation resistance tester can measure insulation resistance, AC voltage, etc.
  • HIGH ACCURACY AND STABLE PERFORMANCE DIGITAL EARTH RESISTANCE TESTER--High degree of accuracy, stable performance, easy operation and reliability.
  • MULTI-FUNCTIONAL AND ECONOMICAL SUPPORTS EASIER OPERATION--Support automatic measurement, low battery indication, LCD backlight, alarm light display, alarm buzzer.
  • WIDELY APPLICATIONS FOR DAILY USE--Widely used for insulation resistance measurement for insulation materials and various kinds of electric equipments such as transformer, electric machines, cables, switches, electrical appliances.
  • IDEAL TOOL FOR ELECTRICAL EQUIPMENT TESTING AND INSPECTING--It is a ideal tool for electric equipment maintenance, testing and inspection.
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Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool

  • This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes..
  • * If the number of lights equals or exceeds 9, and it beeps, it means the diamond is true. * If the lights is about 9 and it beeps, it means the sapphire is true. * If the number is 6.5-7, it means the agate is true. * If the number is 7-8 , it means the crystal is true. * If the number is 6-7, it means the jade is true..
  • Before Test: 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If test diamond, you then need to turn on the lights number corresponding to the indoor temperature and diamond weight.). 7. (If test other gems, you'd better calibrate the probe, method: by placing the probe vertically on a glass, then adjusting the light to 5, then test the gems.).
  • ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the test....
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Upgraded Diamond Tester Pen, Environmental Protection 9V Battery, High Accuracy Jewelry Diamond Tester, Professional Diamond Selector for Novice and Expert, Accuracy Jewelry-Tester Pen

  • ✔◇✔This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes..
  • ✔◇✔SIMPLE TO USE : Diamond Tester Pen is simple to operate to get results. 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light lights up on the scale. 5. Make sure the " ready lamp" light is on. 6. (If test diamond, you then need to turn on the number of the light.
  • ✔◇✔Before Test: 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If test diamond, you then need to turn on the lights number corresponding to the indoor temperature and diamond weight.).7. (If test other gems, you'd better calibrate the probe, method: by placing the probe vertically on a glass, then adjusting the light to 5, then test the gems.).
  • ✔◇✔NOTICE: * When testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the t....
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Diamond Tester Pen, High Accuracy Jewelry Diamond Tester,Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter,Accuracy Jewelry-Diamond Tester Pen

  • This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes..
  • Simple to Use 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..
  • Professional Diamond Selector II will indicate genuine diamond or fake,Uses large / small switches for testing diamonds,Emits audible sounds to easily differentiate the readings,Batteries: 1 x 9v Battery ( included),Package Contents: 1 x Diamond Tester.
  • Popular among professionals, hobbyists, coin enthusiasts, and business owners alike. Excellent tools. Excellent Value. Great gift idea..
  • Application Range:Industrial Purpose, Circuit Board And Printing , Industry, Medicine, Gardening, Coin, Diamond,Stamp, Jewelry, Appraisal, Education, Geography, Home And Office.fast and safe This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds. If you have any question....
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GP 27A Alkaline Battery 12V (Pack of 2)

  • Safe and durable: KaPonsec 23a battery 12v has ultra-long-lasting battery performance, mainly used for garage door opener remote control, car alarm remote control, doorbell, anti-theft alarm remote control, lighter and other electronic equipment.
  • High quality: KaPonsec battery has passed strict quality control standard testing and CE certification, Class A 12v a23 battery has longer battery life, and is equivalent to the following brand models: Energizer A23 12V Duracel MN21, MN21, GP23AE , A23S, 23A, 21/23, GP23A ,MS21 ,23AE, MN21B2PK, L1028, 8F10R, E23A, K23A, 23GA.
  • Rest assured to use:KaPonsec alkaline battery 23a 12v is professionally leak-proof,does not contain mercury,cadmium and lead,and is completely safe for the environment and daily use.
  • Three-years shelf life:KaPonsec 23a batteries is full of 12V power,it will maintain the fullest power within one year after purchase,and can maintain the best power for up to 3 years under appropriate storage conditions.
  • You will get: precise blister packaging, fully charged 12V 5PCS 23A battery and peace of mind service.
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Diamond Tester,High Accuracy Diamond Tester Pen,Professional Diamond Detector for Novice and Expert Black,Battery Included

  • [Easy to Use]: Real Diamond will Emits sounds and lights >=9..
  • [Intuitive Design]: Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and lights .
  • [fast and safe ]: This diamond selector tester designed for quick, precise, and safe diamond testing. No harm to diamonds..
  • [Battery included]: Our diamond tester is powered by DC 9V battery and the battery is included..
  • [Service]: If you have any questions about use, please contact us. We will explain in detail. Professional equipment, the use method needs to learn....
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Synergy Digital Remote Control Battery,Compatible with Logitech Harmony Touch Remote Control, (li-ion, 3.7V, 1100 mAh) Ultra High Capacity Battery

  • ...istency of voltage, internal resistance(20mΩ) and capacity to ensure the super stability and durability of the product, longer discharge time and more cycles. After 1000 cycles of normal charge and discharge, it can maintain more than 70% capacity..
  • 【KNOW BEFORE USE】3.7V li-ion battery is suitable for 3.7V~4.2V equipment. For example, Bluetooth speakers, solar outdoor lights, solar cameras, dental lights, etc. After receiving the battery, check whether the position of the red (+) and black (-) wires of the plug is consistent with the old battery. In different positions, you need to adjust the position. If the plug size is different, you can replace the connector by yourself..
  • 【SIZE & DURABILITY】Size: 2.68*1.46*0.75 Inch(68*37*19mm). Please Check the battery size and connector type. 3.7V 4400mAh rechargeable high capacity li-ion battery pack. Compared with NIMH, it can maintain 70% of the capacity for 1000 cycles of charging and extend the cycle life by 50%..
  • 【REAL CAPACITY】3.7V 4400mAh rechargeable li-ion battery has undergone rigorous capacity testing (±3%), which absolutely guarantees that the capacity is real and not false, and supports capacity testing. Allows you to enjoy longer use time, experience longer working time, and make your ....
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Schumacher BAF-C50 50-Amp Clamps for Charging and Testing Batteries

  • CHARGE AND TEST: Clamps work with any battery chargers and testing equipment .
  • COLOR-CODED: Red and black clamps provide clear polarity insight.
  • INSTRUCTIONS INCLUDED: Find clear instructions on the package .
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Olmlmo Emf Meter,Ghost Hunting Equipment,Radiation Detector,Digital Electromagnetic Field Radiation Detector Digital LCD Emf Detector,Tester for Home Emf Inspections, Office,Outdoor and Ghost Hunting

  • Accurate Measurement: The emf meter equipped with 3 built-in electromagnetic radiation sensors, displaying the radiation value on the ghost hunting equipment’s clear LCD digital display.Our radiation detector can detect 360 degrees EMF meter tests magnetic field, instead of just one sensor compared with others emf meters. The ghost detector’s testing magnetic field radiation with optional units mG/µT, the electric field with unit V/m.EMF meters couldn’t test the RF value and temperature.
  • Sound &Light Alarm : When you use the emf meter ,the emf testing result exceeds the value less than (0.4µT (4mG) or 40V/m), the emf reader top light color is green.
  • the emf meter’s screen will turn yellow and the indicator will be flashing when it’s detecting between 4-40 mG, red if it’s reading more then 40 mG.A sound alarm will give you the same data in higher sound frequencies, which you can also disable.
  • Multi-function & Power Saving: Our emf detector ghost hunting testing average or peak value(Maximum) reading, and one bottom hold the data for a view. This ghost hunting equipment has large -light LCD is clear for viewing. Olmlmo EMF meter will power off af....
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