instrument used to measure earthquake

{"title":"Earthquake Strong Motion Accelerometer Seismograph With Triaxial Sensor","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/e3\/1a\/8fafcac2c4b31dd9fedec26c58c7-200x200-1.jpg","attrs":{"Price":"Negotiated","Brand Name":"Gold","Model Number":"GD","Minimum Order Quantity":"1 set","Delivery Time":"5-8 working days","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":"Seismograph","Channels":"9 Channels","Trigger threshold":"Software can be set up","Input range":"\u00b110V","Input signal\tAnalog Voltage":"Analog Voltage","ADS ampling accuracy":"24bit","Dynamic range":"\u2265120dB","Input noise":"\u22645\u03bcVrms"}}

{"title":"Acceleration sensor KSJB6 is used for inclination measurement and vibration isolation test of precision instruments","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/96\/94\/cb3c824372509aca12a414d771c1-200x200-1.jpg","attrs":{"Brand Name":"Kacise","Model Number":"KSJB6","Minimum Order Quantity":"1pcs","Certification":"certificate of explosion-proof, CE","Place of Origin":"China (Mainland)","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"1000 Pieces per Week","Packaging Details":"each unit has individual box and all boxes are packed in standard packages or customers requests available","Scope":"\u00b130g","Threshold value":"30\u03bcg","deviation value K0\/K1":"\u2264(\u00b120 mg)","scale factor K1":"1.9\uff5e2.1mA\/g"}}