Mini Hidden Camera HD 800TVL Color CCTV Screw Pinhole 3.7mm Lens Video Audio DIY ...

Description: Mini Home 400W Leafless Heater Fan Desktop Anti-scalding Electric Warmer Bladeless Air Heating Winter Warmer Device- High Technology Leafless Heater Convection cooling, circulation heating. Increase the contact area between the heating element & the air-Passing Warmth In Multiple Directions Built-in fan system, convection forms a new wind, long-distance air supply, multi-directional heat transfer, rapid heating-High Quality Thread Heating Wire High-efficiency & energy-saving high-quality threaded heating wire, which not only has a long life, but also can quickly enter a constant temperature within 1-2 seconds.- Comprehensive Security Built-In Temperature Detection Sensor, When The Temperature Inside The body is detected to exceed 75 degrees Celsius, the heater will automatically cut off the power supply.- Overall Anti-Scald Design The machine guarantees the heating effect, & can also control the temperature of the heating element of the machine to about 50 degrees Celsius, & will not burn the h&. Specification: Material ABSColor White / Black Weight 400g Size 10.5 x 26 cm Power 400 W Voltage 220 V Cable Length 1.4m Heater Speed Tow Grade Suitable 10㎡ Maximum Heating Area 20m^2 Or Less Heating Method Heating Wire Time Set Function NOT SUPPORTPackage

Includes:: :1 x Leafless Heater Fan

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Stirling engines are unique heat engines because of their theoretical efficiency is almost equal to the theoretical maximum efficiency, Called the Carnot cycle efficiency. The Stirling engine is heated by gas expansion, cold contraction generate power. Description: Name: Stirling Engine Hot Air Model
Material:metal, glass
Colour:gold
Size:165x 87x 95mm

Features:-This is an external combustion engine in which the fuel is burned continuously, & the piston is moved by the expansion of air (or helium or hyd rogen) as a medium, & the expansion gas is cooled in the cold chamber, & the cycle is repeated. Only a small alcohol lamp, you can make it fast rotation & strong power.-As the external combustion engine to avoid the traditional internal combustion engine of the explosion to do work, in order to achieve a high efficiency, low noise, low pollution & low operating costs.-The biggest advantage of the external combustion engine output & efficiency from the influence of altitude, very suitable for high altitude areas.- Aerodynamics are rich in knowledge of physics, single cylinder combustion engine. Engine principle is intuitive, educational toys, teaching experimental equipment can effectively cultivate childrens interest in learning can also be used for classroom teaching, more intuitive & easy to underst&. Instructions:-The engine model on the horizontal position by hand toggle the flywheel to see if smooth, if there is a strong sense of raw astringent, check the connection ro




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Mini Hot Air Stirling Engine Motor Model Educational Toy Kits A Stirling engine is a heat engine that operates by cyclic compression & expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work. The engine is like a steam engine in that all of the engines heat flows in & out through the engine wall. Description: Speed:1300 to 1500 RPM
Size: 100X45X50MM
Material: Steel, copper & Aluminium, Weight:200g
Features: Using mold steel manufacturing, solid & firm; Flywheel, fine milling, texture & beauty double combination; Rod made ​​of stainless steel manufacturing; Dynamic link sets of aluminum alloy cylinder, power cylinder & the power piston is SUJ2 material fine grinding surface of special treatment, high hardness. Do not wear high-speed ultra-long-running Heating cylinder of quartz glass Package included:1 x Stirling engine model 1 x Alcohol lamp (No alcohol included)1 x spare parts piston


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Mini Hot Air Stirling Engine Motor Spare Parts Little Test Tube Description:

Material: Glass Diameter: 11mm

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Description: Mini Household Healthy Hot Air Oil-free Popcorn Maker Home Kitchen Machine Tools Easy to clean
- simply wipe with
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Descripiton: Mini Household Healthy Hot Air Oil-free Round Popcorn Maker Home Kitchen Eletric Machine- Easy to clean
- simply wipe
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Description: Mini Household Mute Desktop USB (Universal Serial Bus) Three-in-one Ultrasonic Air Humidifier Fan LED Light Humidifier Specification: Material ABS PP Silicone Color Green White Weight 217 G Size 98*137*111mm Working Voltage DC-5 V Working Current 400m A Power 2WWater Tank Capacity 350ml Spray Output 4010ml Package

Includes:: :1 x Humidifier

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Description Item: Medical Spine Lumbar Model
Height: App 15cm Base
Colour: White
Material:PVC




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Mini Hygrometer Portable Soil Moisture Meter 145mm Garden Plant Humidity Tester Red Green Blue Zones Indoor Potted Plant Analyzer ...