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NTI Stainless Steel Float Switch for Liquid Monitoring

An uncontrolled liquid level in tanks can endanger production processes or cause costly damage — the NTI Stainless Steel Float Switch ENVIROMUX-LLS-SF-10CM offers unmatched precision and durability.

This vertically mounted liquid level sensor, made from high-quality stainless steel (SUS304 and SUS316L), is designed for reliable monitoring of fluid levels in tanks, rain barrels, or industrial containers. With a rod length of 10 cm and a float diameter of 28 mm, it is compact and ideal for tight spaces.

The IP68 rating ensures complete protection against water and dust, while the sensor withstands pressures up to 1.5 MPa, making it perfect for demanding environments such as chemical plants or server rooms. Magnets inside the float activate a hermetically sealed reed switch that responds with exceptional reliability and repeatability to liquid movements.

The sensor can be configured as normally open or normally closed by simply flipping the float — an adjustment made in seconds. Equipped with a 38 cm Teflon cable (26 AWG) that can be extended up to 305 m using gel-filled connectors, it provides flexible installation options. Compatible with ENVIROMUX systems (MICRO-TRH, MINI-LXO, 2D, 5D, 16D) and PWR-RMT-RBT-C13, it integrates seamlessly into networked monitoring systems.

The strength of the ENVIROMUX-LLS-SF-10CM lies in its durability and versatility. Imagine a food production facility where water levels in a tank are continuously monitored: when the sensor installed at the bottom detects a low level, it closes the circuit and triggers a refill alert through the ENVIROMUX system before pumps run dry. In a data center where a cooling tank regulates server operation, the sensor mounted at the tank’s top prevents overflow by opening the circuit and stopping the inflow before water damage occurs.

The stainless steel construction (SUS304/SUS316L) and NBR sealing ring make it corrosion-resistant and ideal for aggressive fluids such as acids or chemicals. Operating between -20 °C and 90 °C, it performs reliably in extreme conditions, from cold storage rooms to hot production halls. The M10x1.5 threaded mount allows for simple installation, and the included gel connectors for cable extensions save both time and cost. With an electrical rating of AC 220V/1A or DC 24V/0.5A and a float density of 0.7, it provides accurate responses, while RoHS certification confirms environmental sustainability.

Why choose the NTI Stainless Steel Float Switch?

Because it combines unmatched durability with ease of use, protecting your systems from costly liquid-related incidents. Example: In a chemical facility, the sensor monitors an acid tank and prevents overfilling by alerting the ENVIROMUX system before safety thresholds are exceeded. In a brewery, it protects pumps against dry running by detecting low liquid levels and triggering a refill. Its configurable design (normally open/closed) adapts to any application, while compatibility with ENVIROMUX systems allows for comprehensive monitoring of liquid levels, temperature, and more. Robust stainless steel construction withstands harsh environments, and the easy plug-and-play installation — simply screw it into the tank and connect the cable — makes it ideal for professionals and DIY users alike. Whether in small water barrels or large industrial tanks, this sensor ensures reliable protection and long-term safety.

  • Unmatched durability: Stainless steel (SUS304/SUS316L) with IP68 protection for corrosion-resistant and waterproof performance.
  • Flexible configuration: Quick switch between normally open and normally closed modes by flipping the float.
  • Accurate detection: Hermetically sealed reed switch ensures reliable fluid level detection.
  • Versatile installation: Vertical mounting on the top or bottom of tanks, with cable extension up to 305 m.
  • System integration: Compatible with ENVIROMUX systems and PWR-RMT-RBT-C13 for networked monitoring.

Applications and Practical Examples

The NTI Stainless Steel Float Switch ENVIROMUX-LLS-SF-10CM is ideal for scenarios where precise liquid level control is critical. It safeguards equipment, saves operating costs, and enhances safety. Some examples include:

  • Industrial and production facilities: In tanks containing chemicals or cooling water. Example: In a chemical plant, the sensor prevents acid-tank overflows by stopping inflow and alerting the ENVIROMUX system.
  • Server rooms and data centers: In cooling system tanks for water level monitoring. Scenario: The sensor detects a low water level, triggers a refill, and prevents server overheating.
  • Building management: For HVAC or heating system tanks. Example: In office buildings, the sensor prevents cooling tank dry running, ensuring uninterrupted operation.
  • Agriculture and horticulture: In irrigation or rainwater tanks. Example: In a greenhouse, the sensor monitors water levels and triggers timely refilling to prevent plant dehydration.
  • Laboratories and research: For chemical or biological fluid tanks. Example: In a pharmaceutical lab, the sensor prevents overflow, protects samples, and maintains regulatory compliance.

These examples demonstrate how the sensor provides precise monitoring and proactive protection. Its compatibility with ENVIROMUX systems (MICRO-TRH, MINI-LXO, 2D, 5D, 16D) and PWR-RMT-RBT-C13 enables networked monitoring. Easy installation — screw in using the M10x1.5 thread and connect the cable — along with the option to extend the cable makes it highly versatile.

Key Advantages

  • Maximum strength: Stainless steel construction and IP68 protection for longevity in harsh environments.
  • Configurable settings: Normally open/closed design suitable for any use case.
  • Easy integration: Compatible with ENVIROMUX systems for comprehensive monitoring with cable extension up to 305 m.
  • High precision: Hermetically sealed reed switch for reliable liquid level sensing.

The NTI Stainless Steel Float Switch ENVIROMUX-LLS-SF-10CM is the smart choice for precise liquid level monitoring in demanding environments.

Compatible with:

  • ENVIROMUX-MICRO-TRH and ENVIROMUX-MICRO-TRHP
  • ENVIROMUX-MINI-LXO
  • ENVIROMUX-2D, ENVIROMUX-5D, and ENVIROMUX-16D

Note: Not compatible with E-1W(P).

Compatible with the following Remote Power Reboot Switches / IP-LAN Power Outlets:

  • PWR-RMT-RBT-C13
Datasheets
Datasheet 1

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Datasheet 1 (466.71 KB)

Technical Specifications

  • Models:
    • E-LLS-SF-10CM
    • E-LLS-SF-25CM – Stainless Steel Vertical Liquid Level Float Switch (25 cm)
  • Type: Vertically mounted float switch – installation at the top or bottom of the tank (inside the tank)
  • Operating principle: Built-in magnets in the float activate a hermetically sealed, high-reliability reed switch as the float rises or falls with the liquid level
  • Circuit: Single-pole single-throw (SPST) switch
  • Switch configuration:
    • Standard: Normally closed (NC) – opens when the liquid level reaches the upper limit (top-mounted)
    • Alternative: Normally open (NO) – closes when the liquid level drops below the lower limit (bottom-mounted)
    • To change factory setting: remove the clip, invert the float, and reattach the clip
  • Protection rating: IP68 (waterproof and dustproof)
  • Maximum pressure: 217.5 psi (1.5 MPa)
  • Float specific gravity: 0.7
  • Materials:
    • Float and rod: Stainless steel SUS304 / SUS316L
    • Seal: NBR
  • Cable length: 381 mm (15 in)
  • Wire gauge: 26 AWG
  • Cable type: Teflon
  • Cable extension: Two gel-filled connectors included (extendable up to 300 m / 1,000 ft)
  • Compatibility: E-MINI-LXO, E-MICRO, PWR-RMT-RBT-C13 (Digital Input)
  • Float diameter: 28 mm (1.1 in)
  • Rod length:
    • E-LLS-SF-10CM: 100 mm (3.93 in)
    • E-LLS-SF-25CM: 250 mm (9.84 in)
  • Operating temperature: -20 to +90 °C (-4 to +194 °F)
  • Electrical rating: AC 220 V / 1 A; DC 24 V / 0.5 A
  • Mounting thread: M10 × 1.5
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Manufacturer Information:

Network Technologies Inc

1275 Danner Dr.

Aurora, OH 44202
USA

Phone: 330-562-7070

Email: sales@ntigo.com


Responsible person:

Didactum® Security GmbH

Marsweg 17

48163 Münster
Deutschland

Fon: +49 - 2501 - 9 78 58 80

Email: info@didactum-security.de

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