borehole seismic receiver seismic survey equipment

{"cid":"91217338","title":"Diameter Steel Material Borehole Seismic Receiver Engineering Seismograph for Multi-wave Seismic Surveys","imgUrl":"https:\/\/img.chinax.com\/nimg\/fd\/1d\/7ad1aca15235f4e9da3f5ef0e567-200x200-1.jpg","attrs":{"Price":"Negotiated","Brand Name":"Gold","Model Number":"WZG-24C","Minimum Order Quantity":"1 set","Delivery Time":"5-8 working days","Certification":"ISO9001 CCC CE","Place of Origin":"Chongqing, China","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram","Supply Ability":"1 set per 5 days","Packaging Details":"Carton","Product Name":"Engineering Seismograph","Application":"borehole seismic receiver","Channels":"24","OEM\/ODM":"Acceptable","Depth":"50m to 100m","Frequency":"38hz","Diameter":"50\/40mm","Arm":"Arm open geophone","Material":"Steel"}}

{"cid":"91190354","title":"Spike 75mm 3 Component Geophone Seismic Survey Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/6b\/ed\/f51dba6e084ca76de4e68e40a51c-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"EGL","Model Number":"3 C Geophone 4.5Hz","Minimum Order Quantity":"1 sets","Delivery Time":"5-8 work days","Certification":"ISO9001","Place of Origin":"China","Payment Terms":"T\/T, Western Union,PayPal","Supply Ability":"100sets\/month","Packaging Details":"Carton","Natural Frequency":"geophone 4.5 hz","Geophone Case":"Waterproof Land Case","Damping":"0.6\u00b15%","sensitivity ( v\/m\/s )":"28.8 v\/m\/s \u00b15%","Coil resistance(\u03a9)":"375\u00b15%","Connector Type":"Split Spring Clips connector"}}