Best Working Principle

Solar Powered Welding Helmet Auto Darkening Hood with Adjustable Shade Range 4/9-13 for Mig Tig Arc Welder Mask

  • The light valve (LCLV) in this product can turn from light to dark at the moment of electricity arc appearing, with the principle of photoelectric. The darkness degree can be adjusted between DIN 9 and 13..
  • UV-IR filtering assembly consists of reflective coated glass, multi-layer light valve (LCLV) and polarizer. It can effectively block the ultraviolet radiation and infrared ray from get through, then effectively protect the eyes of the workers against the dama-ges ofultraviolet radiation and infrared ray..
  • Automatic darkening helmet has wider coverage than common helmet. It can be used to protect the face and neck against the damages of the electricity arc and improve the product quality and working efficiency..
  • Automatic darkening helmet is widely used in shipbuilding, petroleum, Architecture, steel, boiler-manufacture and so on. The working temperature range is 23℉ - 131℉. The limited working temperature range is 14℉ - 140℉. The limited storage temperature range is -4℉ - 158℉. The relative humidity range is 20% - 80%..
  • If there are any quality problems of the product in the conditions of within 18 months from date of delivery, the application of customer meeting to USER'S MANUAL'S requirements and correct using, we guarantee to give free ....
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Solar Powered Welding Helmet Auto Darkening Hood with Adjustable Shade Range 4/9-13 for Mig Tig Arc Welder Mask

  • The light valve (LCLV) in this product can turn from light to dark at the moment of electricity arc appearing, with the principle of photoelectric. The darkness degree can be adjusted between DIN 9 and 13..
  • UV-IR filtering assembly consists of reflective coated glass, multi-layer light valve (LCLV) and polarizer. It can effectively block the ultraviolet radiation and infrared ray from get through, then effectively protect the eyes of the workers against the dama-ges ofultraviolet radiation and infrared ray..
  • Automatic darkening helmet has wider coverage than common helmet. It can be used to protect the face and neck against the damages of the electricity arc and improve the product quality and working efficiency..
  • Automatic darkening helmet is widely used in shipbuilding, petroleum, Architecture, steel, boiler-manufacture and so on. The working temperature range is 23℉ - 131℉. The limited working temperature range is 14℉ - 140℉. The limited storage temperature range is -4℉ - 158℉. The relative humidity range is 20% - 80%..
  • If there are any quality problems of the product in the conditions of within 18 months from date of delivery, the application of customer meeting to USER'S MANUAL'S requirements and correct using, we guarantee to give free ....
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Dramamine Motion Sickness Non-Drowsy, 18 Count

  • Effective Against Vomiting- Sea Band, motion sickness wristbands, help nausea from morning sickness, chemotherapy, surgery, car sickness, etc. .
  • Working Principle- Press special acupuncture point with a special plastic ball, and put it on your wrist before going out or after, only takes 2 to 5 minutes to be effective..
  • Nature  Nausea  Choice- Inspired by traditional remedies, like herbs, aromatherapy, & acupressure.  Band help you feel better naturally, with no drug interactions..
  • Universal Size- Soft cotton material and strong elastic design, full of diversity to fits for children and adults. Band anti nausea wristbands are safe, reusable & washable..
  • Immediate relief! - No Drugs, No Side Effects - Simple, Safe & Natural Acupressure Technology Proven Effective..
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Salmue Tattoo Machine,Professional Rotary Tattoo Machine Kit Gun Beginners Tattoo kit with fine workmanship of the Tattoo Supplies for Tattoo Artist (Red)

  • High quality material: Rotary machine is made of aluminum material which means lighter than a traditional coil tattoo machine, better heat dissipation and lower operating temperature.
  • Quiet and fine workmanshipwork: This machine is practically silent when running, it produces low vibrations, Low noise, give the guest a quiet tattoo environment. With fine workmanship of the tattoo machine body part..
  • Powerful Motor: Built-in strong power motor, stable and durable. Heat dissipation quickly and high temperature resistance, reliable Performance. Work continuously for 4-5 hours without getting hot..
  • Working Principle: 3V startup, 6V-9V normal operation, frequency 25,000 RPM/min or 30000 RPM/min..
  • Well Working perform: The Appearance of Anodized Surface Makes It More Beautiful and Colorful, tattoo liner and shader are Performing very well.
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Breathable Mesh Design with Lumbar Pad, Waist Traction Belt Lumbar Spine Support Inflatable Waist Support Lumbar Spine Protector Waist Fixing Belt Back Brace Back Pain Lower Lumbar Support(Blue)

  • SCIENTIFIC PRINCIPLE: Spinal traction belt is designed according to principle of traction, and realized vertical traction successfully, and then achieve continue traction and supporting function. Manual air pump, you can adjust the traction force by pressing the inflation nozzle lightly..
  • LUMBER SUPPORT: The waist belt providing stable support and lifts the torso gently, while pushing downward against the hip bone during the inflation process. This action gently stretches the torso vertically and displaces stress away from the affected disc and nerve..
  • EASY TO USE: Strong adhesion, hook & loop adhesive and wear, stable and not easy to fall off. The inner fabric is soft, fit and skin-friendly, comfortable to wear. Vent designs, unobstructed air circulation, not stuffy when wearing it..
  • ENJOY IT EVERY WHERe: Can be used during activities, or while resting and relaxing, such as walking, watching TV, sitting, lying down, gardening, golfig, working, driving, etc.
  • IDEAL GIFT CHOICE: Great gift for the people who have the job that needs long time driving and sitting. Can be used for prevention and adjuvant therapy of lumbar vertebra diseases such as lumbar Intervertebral disc protrusion, disturbance of lumbar joint, hyperplasia of lumbar vertebra..
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CONVENIENT to use Microwave Radar Motion Sensor Body Intelligent Human Body Sensor Switch Motion Light Switch for home-use for family for hotel

  • SAFE AND RELIABLE: The microwave sensor is safe, reliable, high detection probability, low false alarm, high resistance to fog, wind, dust, snow and extreme temperature.
  • STABLE: The microwave sensor is based on Doppler principle and RADAR technology, the rod antenna and high performance microchip are used, and the working state is stable.
  • DETECT HUMAN MOTION: Microwave radar is used as a control signal source to detect human motion. When someone enters the detection area, the indicator lights up immediately.
  • ADJUSTABLE: It is an active motion detector, adjustable sensitivity, daylight detection and time setting.
  • ENERGY SAVING AND ENVIRONMENTAL PROTECTION: This sensor switch has a detection range of 360°, a working frequency of 5.8GHz, low power consumption, energy saving and environmental protection.
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Artist Unknown SE18GEN Mesh Screen Green

  • 【EASY TO USE】The new high-efficiency screening equipment has a screen moving trajectory that is approximately straight. This sieve machine has....
  • Dimensions: 117CM*56CM*56CM(46.06"*22.05"*22.05").
  • 【WORKING PRINCIPLE】The screen box relies on the vibrating motor to rotate in the opposite direction simultaneously so that the whole screen....
  • 【HIGH QUALITY】This sieve machine adopts high-performance, high-life vibration motor. Adjusting the vibration force of the vibration motor, the....
  • 【WIDE APPLICATION】It is widely used in mining, coal, electric power, metallurgy, building materials, fire resistance and other industries for....
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Interactive Whiteboard System Smart Teaching Whiteboard with Infrared Pen Only Support Windows System Computer and Long Focus Projector for Home Office, Classrooms, Meeting and Presentation

  • ❋ Working principle: The working principle of the interactive smart whiteboard is to connect the computer, the sensor and the data cable, the projector, and the interactive pen successfully. After inserting the U disk, copy the software installation package to the computer desktop and decompress the installation software. After successful installation, you can project it on any plane. It can draw or annotate teaching materials directly on the projection surface..
  • ❋ 360 degree no dead angle: This portable whiteboard can flexibly adjust the angle of 360 degrees (no dead angle), which solves the problems of inconvenient, time-consuming and labor-consuming positioning of the original short-distance portable IWB, and provides you with a more comfortable experience..
  • ❋ Lightweight and portable: The interactive whiteboard is suitable for all types of projectors. After downloading and installing the required software, connect the sensor to the computer to quickly calibrate. It is lightweight and can be carried at any time. It only takes a few minutes to complete the setup and discuss or demonstrate in the new environment. The infrared pen can be used as a computer cursor or drawing/writing tool..
  • ❋ Scope of application: The sensor of the smart portable ....
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Avantaway Ultrasonic Pest Repeller 6 Pack Upgraded Pest Repellent Electronic and Ultrasound Repeller for Insects Bugs Pest Control for Living Room Garage Warehouse Office Hotel

  • Working principle: The new ultrasonic chip technology, the ultrasonic machine stimulates the sensory system and nervous system of pests. Make them....
  • Safe and effective: This product is non-toxic, tasteless, and there is no need to worry about the harm to children and pets. Get rid of mosquitoes and....
  • Night light function: The product is equipped with a breathing light at night to provide soft lighting. Night lights will stimulate pests to leave....
  • Product effect: Low power operation, power saving, long-term operation. Ultrasonic insect repellent is a product that works through low-frequency....
  • Easy to use: Plug in the power it starts working, covering a large area. Ultrasonic insect repellent is silent and covers an area of ​​1800 square....
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PEMENOL Motor Speed Controller PWM DC 5V 12V 24V 150W Adjustable Speed Regulator with Stepless Variable Rotary Switch PWM Signal Generator Driver Module

  • ★Digital Rotary Encoder Button: The rotary encoder adopts the principle of digital pulse, the output will be as much as you rotate it, and the same value will be input when you rotate it next time. Good repeatability, high precision, can be quickly adjusted to the value you want.
  • ★Soft-start Protection: The motor controller has a soft-start protection function that can effectively reduce the inrush current, protect the motor and prolong the life of the motor.
  • ★Duty Cycle, Duty Cycle Upper and Lower Limits and Working Frequency Can Be Set: The 3 digits LED motor speed regulator can adjust the duty cycle, the upper and lower duty cycle limits and the operating frequency. Convenient for customers to use according to the working characteristics of their own motors. The adjustable electronic speed controller can automatically save the set parameters to prevent data loss after a power failure.
  • ★With the Start and Stop Button: The PWM DC motor governor with start and stop button, and can be controlled by an external switch, meet your multiple control needs. Maximum power: 150W. Working voltage: DC5V~30V, input with anti-reverse connection protection.
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