Water Detection Sensor

Water detection sensor for use with E-2D, E-5D, and E-16D environment monitoring sensors.


  • For detecting water presence and warning of flooding.
  • 100% waterproof electronics.
  • Detects any conductive liquid or moisture.
  • Minimum puddle: 0.6" (15 mm) diameter.
  • Detects liquid depth >0.1" (2.5 mm).
  • Features a non-conductive polymer mesh that prevents false alarms caused by dirt/dust buildup, metal contact, or pressure on the rope.
  • Voltage and current:
    • Open Circuit: 5VDC max @ 1µA.
    • Closed circuit: <300mV @ 10.7mA.
  • Available water sensor cable (x) lengths: 1/10/50/100/200/400/600/800/1000 feet.
    • Plenum rating: CL2P (UL)
    • Diameter: 0.25 in (6.35mm)
    • Bend radius: 0.375 in (9.53 mm)
    • Operating temperature: 32 to 167°F (0 to 75°C).
  • Available 2-wire plenum cable (y) lengths: 5/10/20/50/100 feet.
    • Insulation and Outer Jacket Material: Plenum Grade PVC
    • Diameter: 0.111 in (2.82 mm)
    • Contact an NTI product consultant for cable lengths over 100 feet (30 meters) - supports up to 1,000 feet (305 meters).
  • Regulatory approvals: CE, RoHS
  • MTBF: 10,869,188 hrs
  • Use self-adhesive clips (E-CLPxx-LD) to prevent sensor rope cable from shifting after installation