Shandong Nova Technology Co., Ltd. is a trusted manufacturer, supplier, and factory in China, specializing in developing high-quality equipment for coal mining safety. Our latest product, the Handheld Dust Concentration Detector for Coal Mines, is designed to help miners measure the concentration of dust, a common hazard in the mining industry. The Dust Concentration Detector is a portable, easy-to-use device that provides accurate and reliable readings of the concentration of dust in coal mines. It features a large LCD screen that displays real-time data, making it easy for miners to monitor the risk of dust exposure. The device also has a built-in alarm that alerts the user when the dust concentration reaches a dangerous level, ensuring that miners can take necessary precautions to protect their health. Our Handheld Dust Concentration Detector is a must-have for all coal mines and mining sites looking to improve their safety standards. If you're looking for a reliable and cost-effective solution for your coal mining safety needs, look no further than Shandong Nova Technology Co., Ltd. and our range of high-quality mining safety equipment.