acoustic emission preamplifier 28v dc

{"cid":"91201424","title":"PPS \tAcoustic Emission Preamplifier 28V DC Power Supply Signal Separator","imgUrl":"https:\/\/img.chinax.com\/nimg\/12\/05\/7feb142be56c58bfc1957c3dfb31-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"QingCheng AE","Model Number":"PPS50\/PPS2K","Minimum Order Quantity":"1 Piece","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","Model Number:":"PPS50\/PPS2K","Output Type:":"Other","Output Voltage:":"28V DC","Input impedance:":"50\u03a9","Connector type:":"BNC","Color:":"Grey"}}

{"cid":"91198955","title":"30mA Waterproof Ultrasonic Module 40khz 4m Distance Measuring Sensor","imgUrl":"https:\/\/img.chinax.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"}}