{"product_id":"firduo-ip68-waterproof-box-used-for-pwm-uart-receiver","title":"Firduo IP68 Waterproof Receiver Enclosure | PWM \u0026 UART for eFoil SUP","description":"\u003ch2\u003e💧 Keep Your Receiver Dry. Every Ride.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFirduo IP68 Waterproof Receiver Box\u003c\/strong\u003e is a compact, fully sealed enclosure designed to protect PWM and UART RC receivers in wet and submersion-prone environments. Combining a \u003cstrong\u003ePC V0 flame-retardant housing\u003c\/strong\u003e, silicone sealing ring, stainless steel screws, and a pre-installed \u003cstrong\u003eFD05-5A IP68 waterproof connector\u003c\/strong\u003e, it provides a complete waterproof solution for eFoil remote receivers, ROV control modules, and marine RC applications.\u003c\/p\u003e\n\u003cp\u003eAvailable in two variants: \u003cstrong\u003ePWM\u003c\/strong\u003e (3-pin + Dupont 2.54-3P pigtail) and \u003cstrong\u003eUART\u003c\/strong\u003e (4-pin + PH2.0-8P-4P pigtail) — pre-wired to match your receiver protocol.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚡ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eIP68 Waterproof Rating\u003c\/strong\u003e — fully sealed for continuous underwater submersion\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTwo Variants:\u003c\/strong\u003e PWM (3-core, Dupont 2.54-3P) and UART (4-core, PH2.0-8P-4P)\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePC V0 Flame-Retardant Body\u003c\/strong\u003e — UL94 V0 rated, impact-resistant polycarbonate\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFD05-5A IP68 Connector Pre-Installed\u003c\/strong\u003e — gold-plated T2J copper, 380V, 500-cycle life\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSilicone Sealing Ring\u003c\/strong\u003e — compression seal on lid\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eStainless Steel Screws\u003c\/strong\u003e — corrosion-resistant for salt water use\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact:\u003c\/strong\u003e 93×52.8×41mm external; fits most standard RC receivers\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTemperature Range: -10–80°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/321d99d242d674c09cf3495dce8c016d.jpg?v=1782573331\" alt=\"Firduo IP68 waterproof receiver box PWM UART overview\" style=\"max-width: 100%;\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003e📋 Full Specifications\u003c\/h2\u003e\n\u003ch4\u003eWaterproof Box\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0f0f0;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eExternal Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e93×52.8×41mm (excl. connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInternal Dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e64.2×33×33mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBody Material\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePC (Polycarbonate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFlame Retardant\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUL94 V0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSeal\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSilicone sealing ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFasteners\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStainless steel screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~50g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 style=\"margin-top: 16px;\"\u003eFD05-5A Connector (pre-installed)\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0f0f0;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003ePWM\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eUART\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCores\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3-core\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4-core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInternal Pigtail\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDupont 2.54-3P\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePH2.0-8P-4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRated Current\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5A\/pin\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5A\/pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e380V DC\/AC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e380V DC\/AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eContact Material\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eT2J copper, gold-plated\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eT2J copper, gold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eTemp Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-10–80°C\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-10–80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCable OD\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4–6.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4–6.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fafafa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMating Cycles\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e500\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIP68\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/5A-3C.jpg?v=1782573331\" alt=\"Firduo IP68 receiver box FD05-5A connector pin layout PWM UART wiring\" style=\"max-width: 100%;\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003e📦 What's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eUsed for \u003c\/span\u003ePWM:\u003c\/strong\u003e 1× IP68 box + 1× 3-core connector + 1× Dupont 2.54-3P pigtail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eUsed for \u003c\/span\u003eUART:\u003c\/strong\u003e 1× IP68 box + 1× 4-core connector + 1× PH2.0-8P-4P pigtail\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eRC receiver and external signal cable not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/JXT.jpg?v=1782578159\" alt=\"\"\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔗 Compatible Builds \u0026amp; Recommended Pairings\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eeFoil — PWM:\u003c\/strong\u003e protects PPM\/PWM receiver inside board; Dupont 3P pigtail connects to receiver PPM output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eeFoil — UART:\u003c\/strong\u003e protects UART receiver; PH2.0-4P pigtail connects to VESC UART for full VX3 telemetry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROV \/ AUV:\u003c\/strong\u003e IP68 enclosure for control receiver in continuous submersion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine \/ Boat:\u003c\/strong\u003e waterproof receiver housing for RC boat and USV systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePair with:\u003c\/strong\u003e \u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca href=\"https:\/\/firduo.com\/collections\/firduo-remote\/products\/firduo-vx3-waterproof-remote-efoil-electric-surfboard\" title=\"Firduo VX3 Waterproof Remote UART \u0026amp; PWM for Efoil \u0026amp; Electric Surfboard\" style=\"color: rgb(0, 0, 255);\" rel=\"noopener\" target=\"_blank\"\u003eFirduo VX3 IP67 Remote\u003c\/a\u003e\u003c\/span\u003e — VX3 receiver fits inside; use UART for full telemetry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePair with:\u003c\/strong\u003e \u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(0, 0, 255);\" title=\"Firduo 5A IP68 Waterproof Signal Connector 3-Core \/ 4-Core for eFoil, ROV \u0026amp; Marine Wiring\" href=\"https:\/\/firduo.com\/collections\/other\/products\/firduo-ip68-waterproof-connector-5a-for-efoil-rov-marine-wiring\" target=\"_blank\"\u003eFirduo FD05-5A Connector (standalone)\u003c\/a\u003e\u003c\/span\u003e\u003ca rel=\"noopener\" title=\"Firduo IP68 Waterproof Connector 10A\/24A for eFoil, ROV \u0026amp; Marine Wiring\" href=\"https:\/\/firduo.com\/collections\/other\/products\/firduo-24a-waterproof-plug-socket-for-electric-hydrofoil-surfboard\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e \u003c\/span\u003e\u003c\/a\u003e— for additional signal penetrations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePair with:\u003c\/strong\u003e \u003ca rel=\"noopener\" title=\"Firduo IP68 Waterproof Connector 10A\/24A for eFoil, ROV \u0026amp; Marine Wiring\" href=\"https:\/\/firduo.com\/collections\/other\/products\/firduo-24a-waterproof-plug-socket-for-electric-hydrofoil-surfboard?variant=47615445172402\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003eFirduo FD05 24A Connector\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/firduo.com\/products\/firduo-24a-waterproof-plug-socket-for-electric-hydrofoil-surfboard\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e — for \u003cspan\u003ephase\/\u003c\/span\u003epower connections in the same build\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e🛠️ Setup Guide\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect variant\u003c\/strong\u003e — PWM for PPM\/PWM ESCs (3-wire: GND+VCC+signal); UART for VESC-based ESCs (enables VX3 telemetry). Check your ESC manual if unsure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall receiver\u003c\/strong\u003e — Remove screws, open box. Place receiver in cavity (64.2×33×33mm). Connect Dupont 2.54-3P (PWM) or PH2.0-4P (UART) pigtail. Ensure no wires pinch the lid seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoute external cable\u003c\/strong\u003e — Connect ESC signal cable to the external FD05-5A plug. Cable OD must be 4–6.5mm for seal to grip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal the box\u003c\/strong\u003e — Verify silicone ring sits flat in lid groove. Close lid, tighten screws in cross pattern. Do not over-tighten.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMate connector\u003c\/strong\u003e — Align plug and socket, push together, rotate nut clockwise until firm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount box\u003c\/strong\u003e — Secure inside board away from ESC\/motor heat. Ensure connector is accessible for disconnection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest before sealing board\u003c\/strong\u003e — Verify receiver binding and throttle response. For eFoil\/ROV, submerge sealed box 30 min to confirm IP68 integrity.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003e❓ FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: PWM vs UART — which to choose?\u003c\/strong\u003e\u003cbr\u003ePWM (3-core, Dupont 2.54-3P) for standard PPM\/PWM receivers — basic throttle control. UART (4-core, PH2.0-8P-4P) for VESC ESCs — enables VX3 telemetry (voltage, current, temperature). Use UART with FD75200 VESC + VX3 remote for best experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Will my receiver fit?\u003c\/strong\u003e\u003cbr\u003eInternal cavity is 64.2×33×33mm. Most compact RC receivers fit. Measure before ordering — receiver must fit without forcing the lid.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does IP68 hold after repeated opening?\u003c\/strong\u003e\u003cbr\u003eYes, if the silicone ring is undamaged and correctly seated each time. Inspect ring before each re-seal. Replace if worn or if box no longer seals flush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Salt water \/ marine use?\u003c\/strong\u003e\u003cbr\u003eYes. PC body, stainless screws, and gold-plated contacts are corrosion-resistant. Rinse with fresh water after salt water use and inspect periodically.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: Sealed box but losing signal?\u003c\/strong\u003e\u003cbr\u003ePC is RF-transparent and should not block 2.4GHz. Check: (1) antenna not coiled against metal; (2) route antenna along box wall; (3) if inside carbon fiber\/metal board, reposition box closer to surface or use antenna extension.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"Firduo VX3 Remote Receiver Wiring Diagram UART PPM Connection\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/VX3_6801c026-f0e4-476d-a808-c588388bf916.jpg?v=1697095708\"\u003e\u003c\/div\u003e","brand":"FIRDUO","offers":[{"title":"Used for PWM","offer_id":47631472754866,"sku":"WB+3C+3P","price":6.8,"currency_code":"USD","in_stock":true},{"title":"Used for UART","offer_id":47631472787634,"sku":"WB+4C+4P","price":6.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/JSH2.jpg?v=1782572514","url":"https:\/\/firduo.com\/products\/firduo-ip68-waterproof-box-used-for-pwm-uart-receiver","provider":"Firduo","version":"1.0","type":"link"}