ls 5vdc acoustic emission sensor

{"cid":"91201424","title":"LS 5VDC Type A Acoustic Emission Sensor Intrinsically Safe AE Sensor","imgUrl":"https:\/\/img.chinax.com\/nimg\/72\/7c\/1b109604ba6411c11945b060317d-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"QingCheng AE","Model Number":"LS 5VDC","Minimum Order Quantity":"1 pc","Delivery Time":"10-30 work days","Certification":"CE","Place of Origin":"CHINA","Payment Terms":"T\/T","Supply Ability":"100 pcs per month","Packaging Details":"carton box","Frequency range":"15KHz-70KHz","Using temperateure:":"-20-50\u2103","Resonant frequency:":"35KHz","Connector position:":"side","Built-in Pre-amplifier:":"26dB5V","Connector type:":"SMA"}}

{"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"}}