Versatile Refrigerant Compatibility:Compatible with a variety of refrigerants, including R22, R32, R407C, R134a, R507, R404A, R410A, R600a, and R1234yf. Multifunctional with Timed Shutdown:Offers timed shutdown and overpressure alarm functions, enhancing operational safety and efficiency. Vacuum Gauge For Ac|Vacuum Gauge For Air Conditioner|High Accuracy Pressure Sensor:Equipped with a high-precision pressure sensor for reliable and accurate readings in your AC system. Easy-to-Use Interface:User-friendly interface with clear zero and auto shutdown features for simplified workflow in AC servicing. Ergonomic Hand Wheel Design:Features an ergonomic hand wheel for comfortable operation during extended use in AC maintenance tasks. Color: As Shown Material: plastic Package Contents: 1 x Pressure Gauge(The words on the product due to different batches, but it not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.