gyro sensor with true north detection

{"cid":"91210401","title":"High Precision Fiber Optic North Finder for Accurate True North Determination","imgUrl":"https:\/\/img.chinax.com\/nimg\/e7\/cd\/422967c14e7496c7a2cab4616e65-200x200-1.jpg","attrs":{"Price":"5000$","Brand Name":"Firepower","Model Number":"NF701A","Minimum Order Quantity":"1","Delivery Time":"1 week for sample","Place of Origin":"China","Payment Terms":"L\/C,T\/T","Supply Ability":"500\/pcs","Packaging Details":"sponge+ carton","North Finding Accuracy":"\u2264 0.3\u00b0 (NF701A); \u2264 0.5\u00b0 (NF701B)","North Finder Dimension":"115 \u00d7 90 \u00d7 110mm","Output":"RS422","Horizontal Accuracy (1\u03c3)":"\u2264 0.05\u00b0","Azimuth Resolution":"\u2264 0.5\u00b0","Weight":"\u2264 2 kg"}}

{"cid":"91188394","title":"Land \/ Sea Dynamically Tuned Gyro , High Accuracy Gyroscope Wide Dynamic Range","imgUrl":"https:\/\/img.chinax.com\/nimg\/74\/fa\/cb2cfb10ba83c44044a6f93aa798-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"KACISE","Model Number":"KTG-58","Minimum Order Quantity":"1 Piece\/Pieces","Delivery Time":"5 working days after payment","Place of Origin":"Shaanxi, China (Mainland)","Payment Terms":"L\/C, D\/A, D\/P, Western Union, MoneyGram","Supply Ability":"1000 Piece\/Pieces per Week negotiable","Packaging Details":"carton or customers requests available","Random Drift":"\u22640.01\u00b0\/h","Power(1 Phase)":"7&8000 V & Hz","Drift stability":"\u22640.3\u00b0\/h","Non-linear":"\u22640.5%F","Max tracking Rate":"\u2265100\u00b0\/S","Band Width":"\u226570HZ"}}