Detection, Protection, Innovation


Package includes:

  • Leaksurveyor Instrument (44512L or 44512LR)
  • 4mm Hex Driver (12451)
  • 30mm Harness Assembly (12370)
  • 1.5M Tygon Tubing (12712)
  • User Handbook (42207)
  • Shipping List (42652)
  • LR20 Alkaline Battery x 4 (10278)
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The Leaksurveyor uses a fast response semiconductor sensor reducing the time taken for gas leak surveys on gas distribution networks. The Leaksurveyor detects flammable gas from PPM through LEL to 100 % Vol

For more info, call our sales team on +44 (0)141 302 8302.

Key Features

  • Integral Semiconductor Sensor (Range 0 – 10,000 ppm), providing fast response leak detection
  • PPM , LEL and volume flammable gas ranges for leak detection, general safety monitoring and barholing
  • Audible and visual ‘Geiger’ alarm indication on ppm range
  • Integral pump with pressure sensor for flow fail detection with sample path protected by hydrophobic filter
  • Rugged polypropylene case, sealed to IP54 rating, suitable for outdoor use


  • Leak Detection
  • Bar Hole Survey
  • Gas Escape detection

Technical Specification

Measuring Ranges

PPM  0 – 499ppm
PPM 500 – 10000ppm
LEL 0 – 10%
LEL 10 – 100%
VOL 0 – 100%

ppm – Semiconductor Sensor
LEL – Catalytic Sensor
Volume Gas – Thermal Conductivity Sensor


Ex CertifiedUL_Logo_50x50 CE Certified

IEC Ex d ia IIB T3
ATEX II 2G Eex ia d IIB T3
UL913 Class 1 Div 1 Groups CD

Physical Properties

Dimensions :
180 (H) x 95 (W) x 105 (D) mm
7.1 (H) x3.7 (W) x 4.1 (D) in

1.7 kg


0 to 95% R.H. non-condensing

-20oC to +50oC (-4oF to +122oF)

Sampling System

Integral pump with semiconductor
pressure sensorfor flow fail detection. Sample path is protected by hydrophobic filter.

Power Supply

Approx. 21 hours’ run-time
Approx. 18 hours’ run-time


High impact rubberized polycarbonate case

IP Rating

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