{"product_id":"2940013209725","title":"Seismic Detection of Trapped Miners Using In-Mine Geophones","description":"A seismic system which utilizes in-mine geophones to detect trapped miners has been developed. Tests at the Bureau of Mines safety research mine at Bruceton, Pennsylvania, and at two operating mines indicate such a system has a maximum detection range in excess of 1,000 feet. The system is fieldworthy and portable and requires less than 30 minutes to set up and check. Real-time detection is possible.","brand":"1001 Property Solutions LLC","offers":[{"title":"Default Title","offer_id":47082349166832,"sku":"2940013209725","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013209725_p0.jpg?v=1763578223","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013209725","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}