DW20S pressure switch from Bircher Reglomat, a trusted name in safety and automation systems:

Technical Specifications

• Model: DW20S
• Type: Pressure wave switch
• Switching Principle: Air wave activation
• Pressure Sensitivity: 3–30 mbar
• Contact Type: Normally open
• Connection: Red tube with 3 mm inner diameter
• Mounting: Clip-on or surface mount
• Weight: Approx. 1.29 lbs (0.59 kg)
• Application Category: Sensors & Switches
• Warranty: Typically 2 years when purchased through authorized distributors