two wheel magnetic crawler for pipelines

{"cid":"91150510","title":"TG-M70 Two-Wheel Magnetic Crawler for Pipeline & Vessel Corrosion Detection","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/2f\/9bd5e86f328be42a249f9f95db5c-200x200-1.jpg","attrs":{"Price":"USD72082\/set - USD81485\/set","Brand Name":"HUATEC","Model Number":"TG-M70","Minimum Order Quantity":"1 pc","Delivery Time":"10-15 working days after receipt of your payment","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T,Paypal","Supply Ability":"5sets\/Month","Packaging Details":"Carton packing box","Detection control cable":"25m","Thickness Measurement":"Accuracy 0.04mm, Range 2~120 mm (Steel)","Work clearance \/ lift off":"\u22644mm","Measurement non-perpendicularity":"\u00b125\u00b0","Excitation frequency":"3.0~5.0MHz,measuring speed:16~1 times\/s","Sound speed range":"1000~9999 m\/s, adjustment increment: 1 m\/s","Gate function":"automatic gate, manual single gate, manual double gate","Working temperature":"-10~+50\u2103"}}