Overheight detectors

Overheight detectors HISIC450

  • Overheight detection for vehicles
  • Measured values: Overheight
  • Measurement principles: Double photoelectric switch
  • Measuring distance: ≤ 100 m, For outdoor measurement
  • Built-in lens heaters to prevent condensation or icing
  • Weather protection against snow, rain and dust clouds
  • Accessories (weather hood and mounting bracket) made of stainless steel
  • Enclosure rating: IP67

  • Early and reliable fire detection in tunnels
  • Measurement principles: Scattered light forward
  • Perfect addition to temperature cables thanks to earlier and faster detection
  • No need for protective measures during tunnel cleaning
  • Immune to gantry fog
  • Visibility (K value) measured according to the scattered light measurement principle
  • IP 6K9K enclosure rating thanks to a rugged stainless-steel housing

  • For the control of ventilation and for filter monitoring in road tunnels
  • Measured values: Visibility (K-value), NO, NO2, NOx, CO, temperature
  • Measurement principles: Differential optical absorption spectroscopy (DOAS), transmittance measurement, electrochemical cell, Resistance thermometer
  • Measuring distance: 10 m
  • Low maintenance requirements due to long maintenance interval (approx. 1 year)

  • The tunnel flow velocity measuring device for long-term operation
  • Measurement principle: Ultrasonic transit time difference measurement
  • Representative measurement across total tunnel width
  • Very reliable measurement, compared with punctual measurement methods
  • Accurate measurement even of very low flow velocities
  • Extremely rugged components made of titanium, stainless steel, or die cast

Visual range measuring devices

Visual range measuring devices VISIC620

  • Measurement of visual range for roads, tunnels, sea routes and in weather stations
  • Measured values: Standard visual range, K-value
  • Measurement principles: Scattered light forward
  • Spectral range: 640 nm ... 660 nm; Laser, protection class 2, power < 1 mW
  • Measuring ranges: 10 ... 500 m / 10 ... 16,000 m (Standard visual range)
  • Reliable measured values