{"product_id":"echologger-etf-400s-echo-sounder-all-externally-exposed-parts-including-the-cable-are-made-from-ptfe-teflon-which-is-fully-compatible-with-low-ph-conditions-around-ph-2-and-even-more-aggressive-acids-under-normal-temperature","title":"EchoLogger ETF 400S PTFE Echo Sounder for Acidic \u0026 Aggressive Water Environments","description":"\u003ch2\u003eBathymetric Surveys Where Standard Sensors Can't Survive.\u003c\/h2\u003e\n\u003cp\u003eThe EchoLogger ETF 400S is a professional-grade 450 kHz echo sounder engineered for hydrographic surveying in chemically aggressive water environments. All externally exposed parts — including the transducer, housing, and cable — are constructed from PTFE (Teflon), providing full compatibility with low-pH conditions down to approximately pH 2 and resistance to even more aggressive acids under normal temperature conditions. Where standard echo sounders corrode and fail, the ETF 400S performs.\u003c\/p\u003e\n\u003ch3\u003eFull PTFE Construction — Acid \u0026amp; Chemical Resistance\u003c\/h3\u003e\n\u003cp\u003eEvery externally exposed component of the ETF 400S is manufactured from PTFE (Teflon) — one of the most chemically inert materials available. This construction enables reliable, continuous operation in acidic mine drainage, industrial effluent, geothermal water bodies, acid rain-affected reservoirs, and other chemically aggressive environments where standard plastic or metal-exposed sensors would rapidly degrade or fail.\u003c\/p\u003e\n\u003ch3\u003e450 kHz — High-Resolution Shallow Water Performance\u003c\/h3\u003e\n\u003cp\u003eOperating at 450 kHz with a tight 5° beam angle, the ETF 400S delivers high-resolution bottom detection from as shallow as 0.15 meters down to 100 meters — providing complete bathymetric coverage across the full shallow-water survey envelope, even in the most chemically hostile conditions.\u003c\/p\u003e\n\u003ch3\u003eSkyHub RS232 Integration\u003c\/h3\u003e\n\u003cp\u003eThe ETF 400S connects directly to the SkyHub onboard computer via RS232 interface, enabling seamless data acquisition, GNSS timestamping, and georeferenced bathymetric dataset generation from DJI Matrice platforms. The PTFE-jacketed cable is protected by a sleeve that also supports the echo sounder and housing weight during flight.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSensor: EchoLogger ETF 400S | Type: Single-frequency\u003c\/li\u003e\n\u003cli\u003eAcoustic frequency: 450 kHz\u003c\/li\u003e\n\u003cli\u003eMeasurement range: 0.15–100m\u003c\/li\u003e\n\u003cli\u003eBeam width (-3dB conical): 5°\u003c\/li\u003e\n\u003cli\u003eConstruction: Full PTFE (Teflon) — all externally exposed parts including cable\u003c\/li\u003e\n\u003cli\u003eChemical resistance: pH ≈2 and more aggressive acids at normal temperature\u003c\/li\u003e\n\u003cli\u003eInterface: RS232 with SkyHub connector\u003c\/li\u003e\n\u003cli\u003eCompatible drones: DJI M350 RTK, M300 RTK, M600 Pro\u003c\/li\u003e\n\u003cli\u003eHS Code: 90158040 (hydrographic instruments)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Additional components and software must be purchased to use this sensor with drones. A full set of required items will be proposed when you request a quote.\u003c\/p\u003e","brand":"EchoLogger","offers":[{"title":"Default Title","offer_id":42496894271534,"sku":"IS-EL-ETF-400S","price":8121.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2361\/files\/ECT400_800x600_3816432a-b0cf-4200-a1b5-f17ba57e8dd0.webp?v=1734550190","url":"https:\/\/www.maverickdrone.com\/es\/products\/echologger-etf-400s-echo-sounder-all-externally-exposed-parts-including-the-cable-are-made-from-ptfe-teflon-which-is-fully-compatible-with-low-ph-conditions-around-ph-2-and-even-more-aggressive-acids-under-normal-temperature","provider":"Maverick","version":"1.0","type":"link"}