ReviewsSemiconductor Compounds

BRWISSEN A18 Air Quality Monitor Indoor Pollution Tester for Co2 Dust Meter PM1.0 PM2.5 PM10 Particulate Matter Analyzer HCHO Formaldehyde TVOC Detector Data Record Storage Particle Counter

  • ...ood sleeping environment, saving energy and electricity. Can turn off this function in settings page.
  • 003cb003eCO2 / HCHO / TVOC SENSOR003c/b003e -- NDIR Non-Spectral Infrared CO2 Carbon Dioxide Sensor, Absorption chamber Optical Coating.
  • Electrochemical formaldehyde HCHO sensor, double platinum catalytic electrode.
  • semiconductor TVOC sensor, indoor air quality meter can accurately measure a variety of volatile organic compounds TVOC / VOCs, such as benzene, nitrogen oxides, hydrogen sulfide etc.
  • 003cb003eAIR QUALITY ALARM003c/b003e -- Desktop air quality detector with touch button and 3000 mAh rechargeable battery, automatic detection at start-up, drawing 24hrs air quality change curve.
  • Comprehensive assessment of ambient air quality, AQI air quality alarms base on US standards, automatic TVOC HCHO sensor calibration.
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CatXQ Semiconductor Cooler for ipad/Tablet/Phone/Switch Gaming Cooling Case

  • CatXQ Semiconductor Cooler Fan Compatible with All Smart Phone (for iPhone / for Samsung), Tablet (for iPad / for Amazon Fire HD / for Surface / for....
  • Semiconductor Refrigeration Technology:The refrigeration principle of refrigerator is adopted to cool the mobile phone quickly,when playing Fortnite,....
  • RGB Atmosphere Lamp,High brightness lamp beads form RGB ring lamp belt, with high-speed fan rotation, a variety of light effect random change, give....
  • Powerful heat sink: The cooling fan prevents the phone from overheating while playing the game console, extending the life of the phone and battery..
  • Package Include: CatXQ Phone Cooler, 1M USB to TYPE-C Cable, 3 pairs of telescopic clamps(1 pairs black,2 pairs blue).Customer Service Team is....
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High Purity Silicon Metal Element 14 Semiconductor Monocrystalline Si Block(50g)

  • HIGH QUALITY: 100% brand new and high quality. 99.99% high purity monocrystalline silicon block..
  • GOOD FEATURE: Monocrystalline silicon has a diamond lattice, the crystal is hard and brittle, has a metallic luster, can conduct electricity, but has a conductivity lower than that of metal, and increases with temperature, and has semiconductor properties..
  • ENERGY CONVERSING: It can also be used to make solar cell, conversing solar to electricity..
  • USAGE: It is the raw material for manufacturing semiconductor silicon devices, used to manufacture high power rectifiers, high power transistors, diodes, switching devices, etc..
  • SATISFACTION GUARANTEE: We care for every customers feeling.If this product does not meet or exceed your expectations,please send it back for a 100% refund no questions asked..
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12V 240W Thermoelectric Cooler Peltier Semiconductor Refrigeration Cooling System Cold Plate Cooler with Fan

  • WIDE APPLICATION: It can be used for small space refrigeration, for example,test bench cooling，flat product cooling, pet bed cooling, etc Also suit for small space cooling, semiconductor refrigeration learning theory, research solutions developed cooling equipment planning..
  • STABLE: This thermoelectric peltier has 4 chips and 4 fans, can provide a stable performance, and has a long service life..
  • NO REFRIGERANT REQUIRED: This thermoelectric peltier do not refrigerant , very convenient to use..
  • SIMPLE OPERATION: This kit has been assemble well，you only need to connect the lines before use..
  • COMPACT DESIGN: This semiconductor refrigeration adopted a compact design(23.5 * 20 cm) , can be used on many project..
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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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Swpeet 8Pcs Polishing Compound Kit Including 2Pcs White Diamond 1Pcs Red Rouge 1Pcs Black Emery 2Pcs Brown Tripoli All Purpose 1Pcs Blue with 1Pcs General Green Compounds for Buffing Polishing

  • ★ With 8Pcs Different Colors Polishing Compounds ------ The Compounds are designed to be applied on buffing wheels by simply spinning a buffing wheel on a motor/drill and gently pressing the compound against the wheel while the heat/friction will transfer the compound onto the polishing wheel..
  • ★ GOOD WORKING AND HIGH QUALITY ------- All compounds (Black, Brown, White, Green, Red & Blue) are the same size - Length: 4-3/4” – Width: 1” - Height: 3/4”. Long service life and good polishing effect..
  • ★ EASY TO IDENTIFICATION ------- These Compounds are color coded for easy identification in a scale from coarse to fine – The compounds will bring out the maximum luster and mirror like finish on jewelry and soft metals and can also be used to finish harder metals to a mirror like finish..
  • ★ SHINING YOUR FADED WHEELS ------- Swpeet 2Pcs Buffing/Polishing Compounds Kit will help you get a smooth and burr-free mirror finish on a wide variety of surfaces helping you handle all kinds of projects..
  • ★ WHAT YOU GET ------- In this kit, You will get 8 Pcs White Polishing Compounds. Including 2Pcs White Diamond, 2Pcs Red Rouge, 1Pcs Black Emery, 1Pcs Brown Tripoli, All Purpose 1Pcs Blue with 1Pcs General Green Compounds for Buffing Polishing and Cut....
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LEDMALL Bluetooth Motion Full Spectrum 7 Color with White Star Effects Laser Christmas and Decorative Lights with Remote Control

  • Party and decoration like never before with the new LEDMALL 7 color White laser lights with bluetooth speakers.
  • High quality bluetooth speaker is integrated in this newly designed laser garden lights, you can play any music you like which the lights projects....
  • using patented advanced optics to achieve high crispy semiconductor white color with two step optics using semiconductor blue, red, and green laser....
  • RF remote control With Timer setting 2, 4, 6 and 8 hours durations, and with flashing mode capability, please reset remote and light periodically when....
  • Bulb uses < 5mW and has a Class 3R Classification or lower, Waterproof IP 65: IP65, PLUG and Play with long power cord with good range flexibility,....
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Dual-core Thermoelectric Peltier Cooling System Semiconductor Refrigeration Cooler Kit with Power for Plate Cooling Pet Bed Cooling etc

  • 【Bingo Choice】: Our dual-core thermoelectric peltier cooling system is suitable for small space cooling,semiconductor refrigeration learning theory, research solutions developed cooling equipment planning.
  • 【Wonderful Characters】: This semiconductor refrigeration cooler kit with power has stable working status and low noise, it doesn’t need refrigerant.
  • 【Wide Range of Applications】: This thermoelectric cooler can used for plate cooling, pet bed cooling, test bench, small space cooling.
  • 【Note】: Refrigeration effect depends on the size of the cooling space, ambient temperature, heat insulation, seal ability, etc.
  • 【Extra Usage】: This dual-core cooling system kit can be used as dual-core cooling, air cooling device, cooling equipment.
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JEWELERS ROUGE POLISH GOLD SILVER JEWELRY DIALUX ROUGE GREEN WHITE & RED -3 BARS

  • Dialux Brand polishing compounds originally formulated in France has been a popular polishing compound for over 50 years.These are original compounds not similar ones from CHINA..
  • The Dialux polishing compounds are a high grade premium polishing line of compounds specifically formulated for Precious Metals in Jewelry Polishing..
  • Red (Rouge), White (Blanc), Green (Vert)..
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Drixet 4 Piece Polishing Buffing & Cutting Compound Kit - Set Includes Black Emery Brown Tripoli White Diamond & Red Rouge 4 Oz Compounds

  • ✓ The Drixet 4 Piece Buffing/Polishing Compounds Kit will help you get a smooth and burr-free mirror finish on a wide variety of surfaces helping....
  • ✓ SPECS: All compounds (Black, Brown, White & Red) are the same size - Length: 4-3/4” – Width: 1” - Height: 3/4” and 4 oz..
  • ✓ QUALITY: These Compounds are color coded for easy identification in a scale from coarse to fine – The compounds will bring out the maximum....
  • ✓ DESIGN: The Compounds are designed to be applied on buffing wheels by simply spinning a buffing wheel on a motor/drill and gently pressing the....
  • ✓ USES: Used for Polishing, Cutting, Waxing, Cleaning, Repairing, Restoring, Reviving etc. on any material like: Aluminum, Stainless, Steel, Brass,....
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MATIHUNO Neck air conditioner 26H ultra-long life, 9600mAh portable neck fan, semiconductor cooling neck fan, ultra-quiet triple-core cooling intelligent digital display cooling and heating dual-use

  • 【Large air volume】Wearable triple-core cooling neck fan, equipped with a true triple-core semiconductor ice, high-performance brushless motor wind power, in the same wind volume, the noise is as low as 30 decibels. Hidden air inlet design, refuse to wisp hair, safety first. Fashionable and energetic neck air conditioner, is the best choice for you and your family to cool down..
  • 【True trinuclear semiconductor ice】 Portable neck fan with the latest top 71 pairs of particles semiconductor cooling chip, strong cooling, power saving, super 7200m ㎡ of cooling area, wrap-around fit, ergonomic design, suitable for neck wear fit, more effective heat dissipation..
  • [Quiet enough, durable enough] neck air conditioner with permanent magnetic frictionless engine core, reasonable air duct design with quiet permanent magnetic frictionless engine core noise effectively controlled at 30dB or less. 9600mAh new energy dual-core lithium battery, 26 hours of battery life is guaranteed. Low noise, strong wind hanging neck fan is a good partner for your summer portable..
  • 【Adjustable neck arc design】 cooling neck fan with dual-channel....
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