. Not only used in refrigerants, but also in air and liquid. Multi-touch conversion function. Commonly uses the "single pole double throw" electric shock mechanical structure design. Novel micro switch structure ensures reliable conversion. Manual control; no tools required to perform an electric shock function test. Smart mounting plate for various installation options. Suitable for controlling pneumatic machinery and managing the on/off or switching of gas paths. Attention: Adjust the pressure setting by turning the adjustment screw located in the center of the hex. This listing is for a Pressure Switch only; other accessories shown in images are not included. Specifications: Item Type: Pressure Switch Material: Metal, Plastic Size: Diameter: 32mm / 1.2in, Height: 85mm / 3.3in Color: Black Optional Types: QPM11-NC, QPM11-NO Use Medium: Air Working Form: Pressure Adjustable Installation Connection: External Thread Pressure Range: 0.1–1.0 MPa Operating Temperature Range: -5°C to 60°C (23°F to 140°F) Connection: 1/4 inch Rated Voltage: 220V AC, 48V AC/DC Current: 500mA Maximum Power: 24VA, 100VA Insulation Voltage: 500V, 1500V Maximum Working Current: 500mA Max Operating Frequency: 200 cycles per minute Service Life: 100 million cycles Protection Class: IP54 Quantity: 1 Piece Note: No retail packaging included. Measurement tolerance: 1–3mm due to manual measurement. Please consider this before purchasing. Due to monitor display differences, actual item color may vary slightly from images. Package Includes: 1 x Pressure Switch