portable sounder

{"cid":"91217338","title":"Ultrasonic Echo Sounder Underwater Measurement Depth Echo Sounder Instrument For Underwater Mapping","imgUrl":"https:\/\/img.ismap.com\/nimg\/e0\/70\/ccee7d9fddc0a9d6d0e93608c0c8-200x200-1.jpg","attrs":{"Price":"Negotiated","Brand Name":"GOLD","Model Number":"HD37","Minimum Order Quantity":"1 set","Delivery Time":"5-8 work days","Certification":"CE, ISO","Place of Origin":"chongqing,China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union","Supply Ability":"1 set per 5 days","Packaging Details":"carton","Depth range":"10m,50m,100m,150m,200m,300m,500m,600m","Resolution":"1mm","Language":"English","Output data":"USB","Storage":"8G SD card","Product name":"Hand Held Ultrasonic Echo Sounder","Warranty":"1year"}}

{"cid":"91197283","title":"High Resolution HD-380 Digital Dual Frequency Dustproof Single Beam Echo Sounder Portable","imgUrl":"https:\/\/img.ismap.com\/nimg\/ea\/41\/35cd76f57c580170a3973e155588-200x200-1.jpg","attrs":{"Brand Name":"THUNDSEA","Model Number":"HD-380 Digital Dual Frequency Ecosounder","Minimum Order Quantity":"one set","Delivery Time":"15 Days","Certification":"CCS","Place of Origin":"Qingdao","Payment Terms":"L\/C, T\/T","Supply Ability":"30 set per month","Packaging Details":"carton box","Working frequency":"100~750KHz(high frequency adjustable) @10~50KHz(low frequency adjustable)","Maximum transmit power":"500W(200KHz High Frequency Channel) @1000W(20KHz Low Frequency Channel)","Range":"0.3m~600m(high frequency)@ 0.3m~2000m(low frequency)","Accuracy":"\u00b110mm\uff0b0.1%h,resolution\uff1b1 cm","Draft adjustment range":"0.0m~15m","Soung Speed Adjustment":"1370~1700m\/s,resolution 1m\/s","Maximum rate of water depth sampling":"30Hz","CPU main frequency":"1.6GHz","DDR2 Memory":"1G","Maximum sampling rate of water depth":"30 times per second","Storage":"Built-in 4G CF card memory(customizable)","Transmit Data":"Various simulated formats and adjustable baud rate","Display":"High brightness 12 inches LCD display with 1024*768, 600cd\/m\u00b2 resolution(Candelaper square meter)","External port":"2*RS-232 serial port,3*USB,1*DC\/AC power inter- face,1*transducer interface","Power supply":"DC 12V orAC 220V","Power consumption":"20W","Environment":"Working temperature \uff0d30\u2103~60\u2103,waterproof and shock-proof","Size":"440mm\u00d7341mm\u00d7164mm","Weight":"9kg"}}

{"cid":"91188394","title":"Handheld Ultrasonic Sensor Using RS485 Interface And Modbus Protocol For Underwater Ranging And Depth Measurement","imgUrl":"https:\/\/img.ismap.com\/nimg\/73\/96\/f53365e968807ae5f0cbf962b1f5-200x200-1.jpg","attrs":{"Price":"$100-$2000","Brand Name":"Kacise","Model Number":"KWD-100","Minimum Order Quantity":"10-1000","Delivery Time":"10-15 days","Certification":"CE,FDA","Place of Origin":"China (Mainland)","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"2000pcs\/day","Packaging Details":"Common package or custom package","Protocol":"Modbus","interface":"RS485","powered by":"18650 battery","Working temperature range(\u2103)":"-20~60","External power supply voltage (V)":"12~25.6","External power supply current (mA)":"100","Protection level":"IP68"}}

{"cid":"91188875","title":"57mm Mylar Speakers 8\u03a9 0.5W","imgUrl":"https:\/\/img.ismap.com\/nimg\/2b\/27\/d50b9cf800f29cd9d573fd80a25e-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"ANYO","Model Number":"57M","Minimum Order Quantity":"1000pcs","Delivery Time":"8-10 work days","Place of Origin":"CHINA","Payment Terms":"L\/C, T\/T","Supply Ability":"50000PCS per day","Packaging Details":"1000pcs\/carton, 16.5kg, 56*34*35cm","Other name":"Mylar speaker","Diameter":"57mm","Total height":"8.4mm","Rated Imp.":"8ohm\u00b115%","Resonance Freq":"200Hz\u00b120%","Output S.P.L.":"84\u00b13dB"}}