Resolution: 5mm, 7mm, 10mm, 21mm, 35mm
Mounting: BSP 1 1/4", BSP 1 1/2" thread in, SAE-5 hole flange, 6-hole flange, etc.
Application: fuel, water, or other liquid tank
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When engineering fluid management systems for complex machinery or specialized vehicles, standard vertical monitoring tools often fail to accommodate severe spatial constraints. The S5L-300 90 Degree Side Mount Stainless Steel Resistance Output Level Sensor is deliberately engineered to resolve these exact architectural limitations. By shifting the entry point to the lateral wall of the reservoir, this instrument provides exceptionally accurate fluid tracking without demanding overhead clearance. The level-sensor could output the level signal in the form of resistive, voltage, or current for different field applications of the users. The heavy-duty metallic construction delivers a reassuringly solid tactile feel, indicative of its industrial-grade craftsmanship. Every welded joint undergoes rigorous inspection to ensure a completely hermetic seal, safeguarding your critical control systems from vapor ingress or fluid leakage. Whether you are outfitting a newly designed generator enclosure or retrofitting an existing marine vessel, this sensor translates physical liquid dynamics into highly reliable electronic data, empowering operators to maintain optimal fluid capacities without manual intervention.

The foundation of reliable fluid measurement lies in the integrity of the materials exposed to the harsh internal environment of a storage tank. Constructed primarily from premium stainless steel 304, with an available upgrade to 316 stainless steel for extreme environments, the sensor body exhibits remarkable resistance to oxidative degradation and aggressive chemical attacks. The exterior surface is machined to a smooth, non-porous finish, which actively repels residue accumulation. This meticulous surface treatment makes the unit exceptionally appropriate for food-grade applications, ensuring that sensitive consumables like drinking water or raw milk remain completely uncontaminated. When handling the unit, the substantial weight of the metal conveys immediate confidence in its longevity. The internal float mechanism, available in either dense NBR or matching stainless steel, is balanced to glide effortlessly along the central shaft. This frictionless movement guarantees that the sensor responds instantly to microscopic shifts in fluid volume, eliminating the mechanical binding often experienced with lesser materials.

Adapting to diverse tank geometries requires a flexible approach to both physical mounting and electronic communication. Besides the most-common top-mounting design, we have special product variants with the design of side-mounting, bottom-upward mounting, and lock-nut mounting to work with different tank designs and limitations of mounting space. The 90-degree side-mounting orientation is a critical problem-solver for tanks installed in cramped compartments, providing architectural freedom where vertical clearance is virtually zero.

To ensure absolute clarity for engineering and procurement teams, the exact operational parameters and physical specifications of the S5L-300 series are detailed below. Every value represents the precise capabilities of the instrument under rigorous field conditions.
| Product | fuel/water/liquid level sensor with integrated gauge/meter/display |
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| Material | stainless steel 304 |
| Mounting | SAE-5 bolt |
| Length range | 120~2500mm, can be customized |
| Resolution | 4mm, 5mm, 10mm, 21mm |
| Working temperature | -40~85ºC |
| Standard accessories | 2mm NBR gasket *1pc, M5*16 screw *5pcs |
| Working voltage | 12VDC, 24VDC |
| Unit of displayed data | --0-100% in percentage (default) --# of liters --# of gallons |
| Optional output | --voltage: 0-5VDC, 0.5-4..5VDC --current : 4-20mA --CANBUS (J1939) --or customize |
| Mounting Variations | SAE-5 hole flange mount from top SAE-5 hole flange mount from side of tank BSP 1 1/2" thread in from top plain flange mounted from bottom of tank |

Industrial environments subject monitoring equipment to relentless physical punishment, from the deep rhythmic vibrations of heavy-duty gensets to the unpredictable multi-axis motion of commercial marine vessels and recreational vehicles (RVs). This sensor is fortified against such dynamic stresses. The inclusion of a highly compressible 2mm NBR gasket and five precisely threaded M5*16 screws ensures a flush, impenetrable connection against the tank wall, effectively neutralizing mechanical vibrations that might otherwise compromise the seal and lead to hazardous leaks.
Operating flawlessly across a drastic temperature span of -40 to 85ºC, the sensor maintains absolute dimensional stability, preventing the thermal expansion or contraction that frequently leads to data drift in inferior plastics. By delivering a measurement resolution as refined as 4mm, 5mm, 10mm, or 21mm depending on your configuration, the instrument provides fleet managers and facility operators with the granular data necessary to optimize fuel consumption, monitor chemical usage, and prevent catastrophic dry-running scenarios. It is a definitive solution engineered for long-term, maintenance-free operation across the most demanding fluid management sectors.