eg 10 iv seismic geophone

{"cid":"91190354","title":"10Hz Seismic Geophone Element GS 20DX Geophone 11g Moving Mass","imgUrl":"https:\/\/img.ismap.com\/nimg\/21\/f2\/9bc5b19ba1fb9798ea6fc5e5279a-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"EGL","Model Number":"EG-10-IV","Minimum Order Quantity":"1 pcs","Delivery Time":"5-8 work days","Place of Origin":"CHINA","Payment Terms":"Western Union, T\/T,PayPal","Supply Ability":"10000pcs\/month","Packaging Details":"Carton","Natural Frequency ( Hz )":"10Hz \u00b1 5%","Voltage Sensitivity ( v\/m\/s )":"28 v\/m\/s \u00b1 5%","Coil resistance":"395 \u03a9 \u00b1 5%","Moving Mass":"11g","Harmonic distortion ( % )":"\uff1c0.2%","Typical Spurious Frequency (Hz )":"\u2267200Hz"}}