four channels acoustic emission detector board

{"cid":"91201424","title":"4-Channel Acoustic Emission Detector with Aluminum Alloy Shell and Cascadable System SAEU3H","imgUrl":"https:\/\/img.chinax.com\/nimg\/41\/fa\/10cc1f177584b5109bc284247cea-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"QingCheng AE","Model Number":"SAEU3H","Minimum Order Quantity":"1Piece","Delivery Time":"10 days","Place of Origin":"CHINA","Payment Terms":"L\/C,D\/A,D\/P,T\/T","Supply Ability":"30 Piece\/pieces per month","Packaging Details":"Outside packing Size(L*W*H mm):270*230*70 G.W.(KG): 1.2kg Packing way: 1pcs\/plastic bag per unit,carton for outside packing","Certification":"CE","Warranty:":"1 year","Model Number:":"SAEU3H"}}

{"cid":"91150510","title":"Dual-Channel Acoustic Emission Valve Leakage Detector","imgUrl":"https:\/\/img.chinax.com\/nimg\/b2\/e6\/7d435ebf8aaf8b2734a165c4f065-200x200-1.jpg","attrs":{"Brand Name":"HUATEC","Model Number":"HAL-3000","Minimum Order Quantity":"1set","Delivery Time":"3~7 days after payment","Certification":"ISO\uff0cCE","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"100 sets per month","Packaging Details":"in carton","Product name":"Acoustic Emission Valve Leakage Detector","Hardware bandwidth":"10kHz ~ 400kHz","Number of channels":"Dual-channel synchronous acquisition","Power supply":"Built-in lithium battery"}}

{"cid":"90021558","title":"FFT Spectrum RMS ASL Dual Channel Wave Acoustic Emission Valve Leakage Detector","imgUrl":"https:\/\/img.chinax.com\/nimg\/8b\/aa\/927f438abe39e520d9a480a7cacf-200x200-1.jpg","attrs":{"Brand Name":"HUATEC","Model Number":"HAL-3000","Minimum Order Quantity":"1","Certification":"CE ISO GOST","Place of Origin":"China","Supply Ability":"50 per months","Packaging Details":"export standard carton package","Material":"ABS","Hardware bandwidth":"10kHz ~ 400kHz","Number of channels":"Dual-channel synchronous acquisition","Optional gain":"20dB 40dB 60dB","Optional sampling rate":"2KB 4KB 8KB 32KB","Dual-channel synchronization":"Below 0.5\u03bcs","Filter range":"10kHz ~ 400kHz","Power supply":"Built-in lithium battery, the regular continuous working time is about 8 hours","Host normal operating temperature range":"-10~+50\u2103","Host weight":"0.8kg","Host size":"194mm\u00d7129.5mm\u00d745mm","Power adapter":"DC 5V\/4A charging Cable","Data cable":"miniUSB data cable"}}