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5x7FT Abstract Brown Studio Vinyl Floor Backdrop Photography Background

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Get 5x7FT Abstract Brown Studio Vinyl Floor Backdrop Photography Background  Features: Lightweight, easy storage and carry For photography, parties, bars, etc Color fidelity, waterproof, art effect Stereo sense is strong Material: cloth Size: 2.1 x 1.5m Note: In order to facilitate transport and packaging, will be folded cloth background shipments, resulting in creased Do not worry, do not affect to use, recovery method as follows: Cloth material, can use the iron, pressing the back Roll it up tightly with a cylinder, and waiting for 3-4 days Package Included: 1 x Photography Background  5x7FT Abstract Brown Studio Vinyl Floor Backdrop Photography Background See detail
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IN-12 Glow Tube Clock 4-bit IN12 Glow Tube Clock Seven-color RGB LED DS3231 Nixie Clock IN-12B

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Get IN-12 Glow Tube Clock 4-bit IN12 Glow Tube Clock Seven-color RGB LED DS3231 Nixie Clock IN-12B Description: Glow tube models are IN-12B, and other glow tubes are not supported. Power Specification: Voltage DC 5V, current 1A or more. Power can be supplied by using mobile phone charger  and the interface is MicroUSB. There are two versions to choose from: the one with Glow Tube( Type 2 ) and the one without Glow Tube ( Type 1 ). Package included: 1 x IN-12 Glow Tube Clock IN-12 Glow Tube Clock 4-bit IN12 Glow Tube Clock Seven-color RGB LED DS3231 Nixie Clock IN-12B See detail
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TS-300B Turbidity Sensor Detection Module Water Quality Test Washing Machine Turbidity Transducer for Arduino

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Get TS-300B Turbidity Sensor Detection Module Water Quality Test Washing Machine Turbidity Transducer for Arduino Principle:   Turbidity sensor TS-300B measures the turbidity (counter of suspended matter) in the wash water. Based on the optical principle, the sensor uses the light-emitting diode and phototransistor to receive the specific wavelength to measure the opacity or other substances of dirty water. concentration. By using phototransistors and light-emitting diodes, the light emitted by the sensor through the light-emitting diode source is reflected by the sewage, part of the light is transmitted to the phototransistor, and the turbidity of the water is calculated according to the amount of light received.   Features:   1. The working principle the turbidity sensor: When light passes through a certain amount of water, the amount of light penetration depends on the amount of dirt in the water. When the amount of dirt increases, the ...
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