20db acoustic emission sensor preamplifie

{"cid":"91201424","title":"28V PAS Acoustic Emission Sensor Preamplifier With Optional Gain Of 20\/40\/60 DB","imgUrl":"https:\/\/img.ismap.com\/nimg\/42\/98\/7b7a9b2d3a9cf2bc9e65696e3528-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"AE","Model Number":"PAS","Minimum Order Quantity":"1Piece","Delivery Time":"10 days","Place of Origin":"GUANGDONG,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","Gain block selection":"Three gear selection","Output range:":"\u00b110V(Vpp)","Rated load:":"50\u03a9","Maximum current:":"100 mA","Interface Type:":"BNC (Q9) interface 2","Quiescent current:":"31 mA","Working voltage:":"28V DC(24V-32V)","size":"110mm\u00d765mm\u00d737mm"}}

{"cid":"91198955","title":"30mA Waterproof Ultrasonic Module 40khz 4m Distance Measuring Sensor","imgUrl":"https:\/\/img.ismap.com\/nimg\/1e\/be\/d6aed841392ed78eee67ccdfa6cf-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"TAIMI","Model Number":"TM-AT1640H12T\/R Ultrasonic sensor","Minimum Order Quantity":"1000PCS","Delivery Time":"10~20days","Certification":"ISO,RoHS CE","Place of Origin":"CHINA","Payment Terms":"T\/T","Supply Ability":"100000\/month","Packaging Details":"safe packaging","Type":"open type Ultrasonic Transducer","Application Humidification":"distance measurement sensor","Output":"Sensor","Frequency":"40khz Ultrasonic Transducer","Usage":"Ultrasonic Distance Measuring Transducer Sensor","Color":"black","Warranty":"3 years","Measurement":"0.2~4m","Theory":"Ultrasonic Sensor","Quiescent current":"5mA","Total current work":"30mA","Blind":"25cm"}}