The Det-Tronics part number 226365-127 refers to the STB2A2MW, a model from the STB Series Sensor Termination Boxes / Separation Kits. Here's a detailed overview:

 Product Overview: STB2A2MW

• Type: Sensor Termination Box / Separation Kit
• Function: Facilitates remote installation of gas sensors by separating the sensor from its transmitter or control device
• Material: Typically available in aluminum or stainless steel
• Compatibility:
  • CGS combustible gas sensors
  • C706X electrochemical sensors
  • NTMOS sensors
  • GT3000 gas sensors
  • Components of the Eagle Quantum Premier System