{"product_id":"100tech-fuel-gauge-sending-unit-5ft-sus316-high-resolution-sender","title":"100TECH Fuel Gauge Sending Unit 5ft SUS316 - High Resolution Sender","description":"\u003cp\u003eIn this review the 100TECH Fuel Gauge Sending Unit is examined as a practical replacement sender for boats, trucks, RVs and other small tanks. The unit's single biggest selling point is its finer 10mm resolution for short tanks, delivering steadier, more continuous readings in applications where tall-tank senders with 21mm steps tend to jump. Reviewers will appreciate the rugged 316 stainless steel construction and the nonarm reed switch design which reduces slosh and moving-part failures.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh resolution:\u003c\/strong\u003e The 10mm step resolution provides smoother, more continuous fuel level feedback on short tanks and helps avoid large jumps in the gauge reading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-arm reed switch:\u003c\/strong\u003e Magnetic reed switch and fixed resistors eliminate an exposed swing arm, reducing slosh-induced needle movement and mechanical failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e316 stainless steel body:\u003c\/strong\u003e Corrosion resistant construction improves longevity in marine environments compared with lower-grade materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible output:\u003c\/strong\u003e Standard non-linear signal of 240-33 ohms allows direct replacement with compatible non-linear gauges used on boats and vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete mounting kit:\u003c\/strong\u003e Includes gasket, SUS316 M5 screws and wiring terminals plus clear instructions to make installation straightforward and fast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge matching:\u003c\/strong\u003e Works with 52mm install diameter gauges and supports 9-32V systems with IP67 protection for wet environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis sender is aimed at sailors, boater DIYers, RV owners and light truck users who need a reliable replacement for short tanks where a finer sensing resolution matters. It is especially useful when slosh from waves or road movement has caused erratic readings from swing-arm senders.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users who require a linear-output sender for a specific gauge model incompatible with the 240-33 ohm non-linear curve, or anyone with a tank depth that requires a sender length equal to the tank depth (the unit should be about 1' shorter than tank depth).\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExcellent build quality from 316 stainless steel for long life in marine conditions.\u003c\/li\u003e\n\u003cli\u003eSmooth, stable readings due to reed switch design with no swing arm to catch or break.\u003c\/li\u003e\n\u003cli\u003eHigh sensitivity 10mm resolution gives continuous level indication in short tanks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNon-linear 240-33 ohm output limits use to gauges designed for that signal curve, so check compatibility first.\u003c\/li\u003e\n\u003cli\u003eFloat diameter and sender length require planning; the sender should be about 1' shorter than tank depth and a 1-1\/2' hole may be needed for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal output\u003c\/td\u003e\n\u003ctd\u003e240-33 ohms (240 empty, 33 full)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e10mm step resolution for shorter tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSUS316 stainless steel body and bezel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstall diameter\u003c\/td\u003e\n\u003ctd\u003e52mm (2-1\/16 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage\u003c\/td\u003e\n\u003ctd\u003e9-32V DC (fits 12V-24V systems)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress protection\u003c\/td\u003e\n\u003ctd\u003eIP67 waterproof and dustproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting kit\u003c\/td\u003e\n\u003ctd\u003eNBR gasket, 5 x SUS316 M5 screws, 4 wiring terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 100TECH 5' stainless fuel sending unit is a durable, well-engineered replacement for users who need reliable, steady readings in small tanks and marine environments. Its 316 stainless construction and reed-switch design reduce maintenance and slosh, making it good value for boaters and RV owners with compatible non-linear gauges.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this sender work with my existing gauge?\u003c\/strong\u003e\u003cbr\u003eIt requires a gauge that accepts a non-linear 240-33 ohm signal; confirm your gauge is compatible with that curve before purchasing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat tank hole size is needed?\u003c\/strong\u003e\u003cbr\u003eIf you need to drill, a 1-1\/2 in (38mm) hole fits the float; the install flange fits a 52mm bezel pattern.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long should the sender be relative to tank depth?\u003c\/strong\u003e\u003cbr\u003eTo avoid the sender contacting the tank bottom, choose a length approximately 1 in shorter than the tank depth.\u003c\/p\u003e","brand":"100TECH","offers":[{"title":"Default Title","offer_id":48187079590107,"sku":"B0BQ3RCM6M","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61bqiCtrHNL._AC_SL1500_0cfee131-5771-4c08-ba51-6e94334ea47b.jpg?v=1769697451","url":"https:\/\/gearmusthave.com\/products\/100tech-fuel-gauge-sending-unit-5ft-sus316-high-resolution-sender","provider":"GearMustHave","version":"1.0","type":"link"}