Bullet Proof Helmets
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Led Shoulder Traffic Lights
Auto range, AC output, Memory
Digital Sound Level meter
Model : SL-4012
Mangal Transparency tester is microcontroller based and easy to use that measures the light transmission through any type glasses of vehicles .It works by aligning the transmitter and receiver on opposite sides of the glasses by using sensors. It detects and display the percentage of light transmission that has passed through the the tinted glasses in digital display
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