The SGAS701 is a solid-state chemiresistor sensor designed to detect hydrogen in air. The sensor uses an integrated heater with highly sensitive MOx material tailored for detection of hydrogen.


  • High sensitivity to low hydrogen concentrations (10 to 1000 ppm)
  • Fast response time (15 seconds at 100 ppm)
  • Environmental temperature range of -20°C to 50°C
  • Environmental humidity range of 0% to 90% RH, non‑condensing
  • Low dependence on flow rate




Type Title Date
Datasheet PDF 823 KB
End Of Life Notice PDF 1.07 MB
Application Note PDF 132 KB
Overview PDF 235 KB
Application Note PDF 429 KB
Application Note PDF 581 KB
6 items

Design & Development

Boards & Kits

Boards & Kits


Introduction to IDT Gas Sensor Solutions

A brief introduction and overview of IDT's gas sensor solutions and capabilities. The SGAS line targets industrial controls and leak detection, while the ZMOD line targets high-volume consumer and industrial applications. Our industry-leading sensors are based upon a highly reliable ceramic substrate, coupled with advanced nanostructured materials tailored for individual applications. IDT’s gas sensors are capable of accurate detection of a range of gases, including hydrogen, flammable gases (methane, propane, natural gas) and Volatile Organic Compounds, such as formaldehyde.

For more information about IDT's innovative, high performance gas sensor portfolio, visit https://www.idt.com/gas.