Continous Multipoint Gas Detection Systems

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Portable Gas Detectors
Confined Space 4 Gas Monitors
Single Gas
Limited life instruments (Disposable Gas Detectors)
Single gas (plus PID)
Multi gas
Multi gas (plus PID)
Photo ionisation detectors (PID)
Leak detectors (PPB)
Leak detectors (PPM)
Benzene detectors
Refrigerant leak detectors
Carbon dioxide CO2 (infrared)
Hydrogen monitor
Hydrocarbon HC (infra red)
Carbon monoxide CO detectors
Indoor air quality instruments
Portable Methane Detector
UltraSonic Leak Detection
Fixed Gas Detection
Honeywell Fixed Gas Detection
Riken Keiki Fixed Gas Detection
GDS Technologies Fixed Gas Detection
Ribble GD Fixed Gas Detection
Bacharach Fixed Gas Detection
Crowcon Fixed Gas Detection
Interscan Fixed Gas Detection
Fixed Gas Detection Systems
Single Point
1-4 channel
1-10 channel
Addressable sytems up to 32
Addressable systems up to 64
Sampling Systems
PID fixed
Drager Fixed Gas Detection Monitoring
Refrigerant Fixed Gas Detection
Honeywell Fixed Gas Detection Systems
Area Monitoring Devices
Area Monitoring
Landfill Gas Analyser
Landfill Gas Analysers
Wireless Gas Detection Systems
Gas Detection Tubes
Detection Tubes
Sub Slab Monitoring
The Vapor Pin System
RAE Systems Spares & Accesories
MiniRAE 2000 PID Spares
MiniRAE 3000 PID Spares
QRAE II spares
EntryRAE Spares
UltraRAE 3000 Spares
Replacement RAE Sensors
Replacement Gas Monitors Sensors
Replacement Drager Spares & Sensors
Replacement Crowcon Spares & Sensors
Replacement BW Spares & Sensors
Gas Detection Badges
TDI/MDI Badges
Gas Detection Badges
Calibration Systems
Calibration Systems and Kits
Fumigation Products
Fumigation Monitor
Calibration Gas
Calibration Gas Regulator
Water Quality Meter
YSI Pro Plus Quattro
Temperature and Pressure Calibrators
Temperature Calibrators
Digital Pressure Calibrator
Pressure Calibrator
Marine Test Case
Pressure Pumps
Digital Pressure Meter
Smoke Emissions
Oil Mist Detector
Oxygen Analysers
NOx Emissions
Water Monitoring
Personal Protection Equipment
MSA Gallet F1 XF Safety Helmet
Dust Monitoring Devices
Dust Monitoring

Special Offer

On All Orders over £100 and £500

● Spend over £100.00 and receive a FREE Single person 1st Aid Kit and ERGO Safety Glasses

● Spend over £500.00 and receive 2 x FREE 1st Aid Kits & 2 pairs of Safety Glasses

Continous Multipoint Gas Detection Systems

Our multipoint continuous gas monitoring system product line is the talk of the industry, and has spawned many imitators.  Interscan’s is the original and still the best.

Standard Features:

  • Dedicated sensor, sample pump, and digital flow switch for each point
  • All control and display functions at easy-to-use operator interface
  • User adjustable low and high alarm set points, activating dedicated relays for each monitoring channel
  • Stackable tower lights for low, high, and fault alarms, and piezoelectric horn for high alarm, common to all channels
  • Alarm event and time of occurrence tracking, plus last time calibrated tracking, specific for each sensor
  • Vacuum fault detection and fault display, for all sample pumps
  • 4-20 mA analog output, for each channel

Quick Specs:

  • Weight:
    • 2-point system 70 lb (31.8 kg)
    • 3-point system 142 lb (64.4 kg)
    • 4-point system 148 lb (67.1 kg)
    • 5-point system 155 lb (70.3 kg)
  • Dimensions:
    • 2-point system:
      22″ H x 18″ W x 8.5″ D
      (610 x 508 x 203 mm)
    • 3, 4, and 5-point systems:
      36″ H x 30″ W x 8″ D
      (914 x 762 x 203 mm)

Dimensions given are exclusive of alarm signals and enclosure mounting feet.


Now, you can specify a system with the exact operation you need, with no compromise. Our design makes this possible.

Built around a programmable logic controller (PLC), sensors, and an operator interface (or PC), the features are limited only by your imagination.

Naturally, we can supply a system for any of the gases detected by our own sensors – but that’s only the beginning. Since any sensor with an analog, digital, or discrete output connects to the PLC, you can mix and match toxic, combustible and process sensors – yours, ours, theirs – without worrying about anybody’s proprietary controller.

Will you have hundreds of sensors? Do you need an elaborate control scheme, or data acquisition with live and historical trending? Not a problem.

If you can describe it, we can do it.

Additional Specs

LD Series Addtl Specs



Additional information


-Alternative packaging, including Type X or Type Z purged enclosures and RFI resistant enclosures
-Enclosure heating and cooling
-Triple alarm set points
-Loss of power alarm
-Aspirator (in lieu of pump)
-Auto zero
-Sensor protection circuit


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