Features: Compact flexible Design: This 70mm gauge combines atmospheric pressure, temperature, and moisture tracking in single small device, perfect for vehicles, boats, or tight spaces with its space efficient form. Mechanical Measurement Device: Uses mechanical components to monitor atmospheric conditions (960 1060 units), temperature ( 30°C to 50°C), and moisture content (0 %) without needing power sources for continuous operations. Versatile Mounting fixes: Features a 55 60mm rear diameter for seamless fitting into wood projects or direct attachment, complemented by an elegant metallic finish for enhanced appearance. Robust Metal Construction: Made with strong aluminum alloy casing and resilient clear cover, requiring minimal care after initial setup adjustments. Clear Readout & Easy Calibration: Highly visible display allows effortless reading despite compact size, while the rear adjustment wheel permits accurate pressure configuration for area specific readings. Specifications: Outer diameter: 70mm (2.75 Inches) Installation depth/back insertion diameter: about 55mm - 60mm (fits standard opening) substance: Aluminum alloy border, ABS plastic bottom case, acrylic glass Measuring extent: Air pressure: 960 - 1060 (28 - 31 inHg) Temperature: -30°C to 50°C Humidity: 0% to % Color: traditional Gold / brass color Package Includes: 1 x multifunctional analog anemometer note: Pay attention to the storage methods.