ALL-IN-ONE WEATHER MONITORING: This comprehensive set includes a Barometer (950-1070hPa), a Thermometer (-30~50°C / -22~122°F), and a Hygrometer (0-100%RH). Perfect for tracking atmospheric pressure, temperature, and humidity, ensuring you and your equipment are always prepared for the weather. The barometer features a special adjusting knob and a set needle for tracking pressure changes. HIGH PRECISION & RELIABLE MEASUREMENTS: Crafted for professional use, the barometer is built with a specialized movement, while the thermometer and hygrometer utilize imported precision hairspring mechanisms. Enjoy reliable readings with an accuracy of ±2°C for temperature and ±5%RH (in 40~70%RH range) for humidity, making it ideal for scientific, maritime, or hobbyist applications. PREMIUM DURABLE CONSTRUCTION: The gauges feature a 72mm diameter face framed by a solid aluminum alloy bezel, offering a timeless, classic aesthetic that looks great on any wall. The front lenses are made of durable, arched plastic for clear visibility, and the unit includes a rubber mounting gasket to ensure a snug, secure fit when installed into panels. EASY FLUSH MOUNT INSTALLATION: Designed for seamless integration, these 72mm round instruments fit into standard cutouts. With a compact casing depth of approx. 34mm (for thermometer/hygrometer) and 37mm (for barometer), they are perfect for recessed installation in RVs, boats, yachts, dashboards, or cabin walls. The black plastic back allows for quick panel mounting. VERSATILE USE FOR BOATS, RVs & HOMES: This elegant weather station combo is the perfect upgrade for your marine vessel, camper, motorhome, or workshop. Not only do they act as a practical weather monitoring tool, but the sleek brass-toned aluminum rims also add a touch of vintage sophistication to office desks, living rooms, or indoor decor.