doppler sonar jrc speed log

{"cid":"91197283","title":"Model JLN-205 Pulse Doppler Sensing Dual Beam 2MHz Speed Log Power consumption High Accuracy Cost-effective","imgUrl":"https:\/\/img.chinax.com\/nimg\/e3\/5f\/e668ef756b5ab1d7210cd80ca0ab-200x200-1.jpg","attrs":{"Brand Name":"JRC","Model Number":"JLN-205","Minimum Order Quantity":"one set","Delivery Time":"15 Days","Certification":"CCS","Place of Origin":"Japan","Payment Terms":"L\/C, T\/T","Supply Ability":"30 set per month","Packaging Details":"carton box","Operating Method":"Dual beam, pulse Doppler sensing.","Frequency":"2MHz","Speed range":"-10.0 to +40.0 knot","Distance run range":"0 to 99999.99nm *Note: NWW-7 optional indicator allows the range from 0 to 9999.99 nm","Depth range":"3m or more (below hull bottom)","Indiction":"Digital indicator. Analog indicator (where using option unit of NWW-24\/25\/26)","IEC61162-1 input":"RMC, RMA or VTG (for SOG indication from GPS receiver)","IEC61162-1 Output":"8 port\/$VDVBW, $VDVLW sentence","Power supply":"100 \/ 110 \/ 115 \/ 220 \/ 230 Vac +\/- 10%, 50\/60Hz, 1-phase","Power consumption":"100VA or less","Accuracy":"+\/-1% or +\/-0.1 knot whichever is greater +\/-1% or +\/-0.1 nm whichever is greater","Operating temperature":"-15 to +55 deg. C"}}

{"cid":"91223334","title":"DP500 Doppler Velocity Log DVL High-Accuracy 3D Speed & Altitude | AUV ROV Underwater Navigation","imgUrl":"https:\/\/img.chinax.com\/nimg\/f8\/1a\/9599b16f675e2b7890c9e49bd9ba-200x200-1.jpg","attrs":{"Model Number":"DP500","Minimum Order Quantity":"1","Place of Origin":"Wuhan Hubei","Payment Terms":"T\/T"}}