Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

SGX Sensortech
Manufactured by SGX Sensortech, the VQ546MR is a thermal conductivity device utilizing a VQ500 head to measure helium, hydrogen, and methane across a 0-100% measuring range via diffusion gasflow. This sensor provides a Wheatstone bridge output in mV with a positive methane response and features flameproof ATEX certification for II 2G Ex d IIC Gb and I M2 Ex d I Mb operating in temperatures from -40 to +55 °C for portable and stationary deployment. Submit the exact part number, quantity, and application requirements to request a quote.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against SGX Sensortech VQ546MR. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.