• Next generation high performance sensor “F Sensor Series” is installed, greatly improving both functions and performance.
  • Complies with different global standards (including planned certifications).
  • Wide range of output options.
  • Rugged housing construction allows use even in harsh environments.
  • Wide range of types to suit a variety of uses and installation environments.

 Model list

  • SD-3EC, SD-3DEC, SD-3ECB (Diffusion type)
  • SD-3DEC, SD-3DECS, SD-3DECB (Suction type)
  • SD-3SC+GD-3EC/ECS/ECB (Remote type)

Sampling method Suction and Diffusion
Principle of detection Potentiostatic Electrolysis Method
Explosion protected construction Flameproof enclosures, Flameproof enclosures + Intrinsic safety
Explosion-proof class IECEx : Ex db ⅡC T4 Gb
ATEX : Ⅱ2G Ex db ⅡC T4 Gb
*for SD-3ECB, please refer to the catalog.
Ingress proof rating IP66/67
Approvals Japan Ex, ATEX, IECEx, SIL
CE marking EMC / LVD / ATEX / RoHS
Power source 24 VDC (18 to 30 VDC)
Dimensions Approx. 171(W) ×277(H) ×127(D) mm (Diffusion type) Approx. 171(W)× 289(H) ×127(D) mm (Suction type)(excluding projections)
Weight Approx. 6.7 kg (Diffusion type) Approx. 7.0 kg (Suction type)
Target gas H2S, NO2
Target Gas

H2S (Hydrogen Sulfide), O2, Toxic Gas


Oil and Gas

Product Type