ATEX Hydrogen Detector

TRACE 101 is a tracer gas leak detector for any kind of environment, and especially for hazardous areas. It is ATEX certified to be used in zone 0 - ATEX classification Ex ia, IIC T4.
The recommended tracer gas is a cheap standard mixture of 5% Hydrogen (H2) and 95% Nitrogen (N2). This mixture is non-flammable, non-toxic and eco-friendly. TRACE 101 can pinpoint with accuracy a leak rate up to 1x10-6


  • ATEX certified
  • Quick, easy, and accurate leak detection
  • High sensitivity: 1x10-6
  • Rugged instrument
  • User friendly and easy to maintain
  • Compact and light portable powered by battery
  • Easy to transport to remote locations



  • Refrigeration unit
  • Chemical and petrochemical reactors
  • Valve
  • Welded assembly
  • Heat exchanger
  • Alternator cooling circuit
  • Buried pipe
  • Bladder


Technical specifications

Model TRACE 101
Lowest detectable hydrogen concentration 1ppm (parts per million)
Lowest detectable leak rate
With standard gas mixture of 5%H2 and 95%N2
Response time 1 second
Warm up time including self-check 1 minute (approx.)
Battery unit Sealed, rechargeable
Battery runtime 4 hours
Battery charger
110-230 Vac | 50-60 Hz | 12 Vcc
Temperature 0°C to +50°C | 32°F to 122°F
Relative humidity 90% maximum
Weight (with battery) 600 g | 1.32 lbs
Size 235x118x45 mm | 9.2’’x4.6’’x1.8’’


ATEX Certification

Manufacturer: SUNAERO

INERIS 08 ATEX 0039 
II 1 G
Ex ia IIC T4 Ga
Tamb: 0°C to + 50°C
Zone 0 Category 1
According NF EN 60079-0 (2009) and NF EN 60079-11 (2012)


Ordering information

P/N: Equipment
TRACE 101: Portable ATEX Hydrogen Leak Detector
     - 1 x Detector
     - 1 x Local probe 
     - 1 x ATEX certified Safe probe 
     - 1 x Battery
     - 1 x Battery charger
     - 1 x Carrying case
     - 1 x Instruction manual

P/N: Probes and accessories
PH101: Hydrogen probe
FB50-100: Kit of 50 bronze filter mouthpiece (protection from dust and oily matter)
NS4-100: Kit of 4 ATEX probe heads
EXT-5MA: 5 meters ATEX extension stick


Technical document available for download

Datasheet TRACE 101 DataSheet