Four piece analog weather station set with brass case and acrylic lens. The contrast pin on the dial lets you quickly compare readings and detect pressure trends over time. Gear driven barometer movement with a metal pointer provides reliable, easy to read results. Specifications: - Temperature: -30 to 50 C, accuracy ±2 C. - Hygrometer: 0–100% RH, accuracy ±5% RH (best within 40–70% RH). - Barometer: 950–1070 hPa, accuracy ±5 hPa (typical 980–1040 hPa). - Movement: gear driven, updates every second. - Materials: brass case, base plate, acrylic lens. - Set contents: 4 units. Key benefits: - All in one climate monitor: measures temperature, humidity and pressure. - Quick trend detection: compare readings at a glance to anticipate weather shifts. - Durable construction with clear display for reliable use in ships, factories, laboratories or homes. Applications: - On ships or in harbors for weather and pressure tracking. - In factories or laboratories to observe environmental conditions and support processes. - At home or in offices to maintain comfortable indoor climate and anticipate weather changes.