LSZH Sensing Cable

Low Smoke Zero Halogen Leak Detection

RLE’s low smoke zero halogen (LSZH) sensing cable reliably detects the presence of water leaks and other conductive fluids. The cable is constructed from non-conductive polymers to help eliminate false alarms, and this cable’s composition is specially formulated to receive a low smoke zero halogen (LSZH) materials classification. In the event of a fire, this cable produces a smaller quantity of smoke, and the smoke that is produced is less dense and less toxic smoke than a non-LSZH sensing cable

RLE’s conductive fluid sensing cable is:

    • Durable – manufactured with an abrasion-resistant polymer core, which increases strength and durability. Definitely stands up to foot traffic!
    • Flexible – easily bends around corners and wraps around pipes, while resisting bends and kinks.
    • Resists False Alarms – engineered specifically to resist contamination and constructed from non-conductive polymers to help eliminate false alarms!
    • Quick to Install – each end of the cable contains mating connectors – this makes it easy to install new systems and to add lengths of cable to existing systems.
    • Easy to Clean – when it’s visibly dirty, clean it quickly with Dawn dish soap or rubbing alcohol. No special cleaners or cleaning systems required.
    • Fast Drying – gently wipe the cable dry, and it’s ready to detect the next leak.

Plus – all of our sensing cables are manufactured and assembled in the USA.

Sensing cables are available in a variety of standard and custom lengths:

  • 3ft (0.91m) – SC-ZH-3
  • 10ft (3.05m) – SC-ZH-10
  • 17ft (5.18m) – SC-ZH-17
  • 25ft (7.62m) – SC-ZH-25
  • 50ft (15.24m) – SC-ZH-50
  • 100ft (30.48m) – SC-ZH-100
  • Custom Lengths (available upon request) – SC-ZH-CL-xx

With over 14 million feet of leak detection sensing cable installed in systems around the globe, you can’t beat the durability or reliability of our leak detection sensing cables.

How much cable do I need?

Ready to purchase a SeaHawk system? Download and use our SeaHawk Sensing Cable Length Calculator to make sure you order the right amount of cable.

Key Features

  • Durable
  • Easy to clean
  • Fast drying
  • Helps eliminate false alarms
  • In the event of combustion, LSZH formulation produces smoke with a reduced quantity, density, and toxicity
  • Able to resist damage from most contaminants
  • Highly flexible – resists bends and kinks
  • Quick, simple installation and easy system expansion
  • Lies flat after installation
  • Non-conductive polymer construction
  • Thermally bonded polymer-coated carrier
  • LSZH and RoHS compliant
  • Available in standard and custom lengths with pre-installed end connectors

Rating: LDZH

Sheer Strength: >180 lbs. (>81kg)

Cut Through Resistance: >40 lbs. (>18kg) with .005in (0.127mm) blade

Abrasion Resistance: 60 cycles per UL 719

Connector: 4 pin, 0.96in (24.38mm) diameter

Resistance per Foot: 2.8 ohms

Operating Environment

  • Temperature: -13° to 194°F (-25° to 90°C)
  • Humidity: 5% to 95% RH, non-condensing
  • Altitude: 15,000ft (4,572m) max.

Storage Environment: -22° to 194°F (-30° to 90°C)

Dimensions: Diameter of cable not to exceed 0.25in (6.35mm)

  • SC-ZH-3 : 3ft (0.91m)
  • SC-ZH-10 : 10ft (3.05m)
  • SC-ZH-17 : 17ft (5.18m)
  • SC-ZH-25 : 25ft (7.62m)
  • SC-ZH-50 : 50ft (15.24m)
  • SC-ZH-100 : 100ft (30.48m)
  • SC-ZH-CL-xx : Custom Lengths (available upon request)

Weight: .02 lbs./ft (29.74g/m)

Certifications: CE; RoHS Compliant; LSZH IEC 60754-2 (Halogen Free), IEC 61034-1 (Low Smoke); Patent No. 6,144,209

Product Documentation Links

Technical Resources

Technical Notes

Application Guidelines
Our conductive fluid sensing cable is designed to detect conductive fluids, like water and glycol.

If you are trying to detect non-conductive fluids, like pure de-ionized water, gasoline, diesel fuel, or hydraulic oil, this cable will not work.

Annual Maintenance
Has your cable been installed for a while?  You may need to test your system.   Depending on your environment, systems should be tested at least once a year.  The more hazardous or dirty the environment, the more frequently it should be tested.  Refer to our Sensing Cable Care and Maintenance Guidelines and learn how to clean your cables and test your system.