Weems & Plath Dampened Deluxe Quartz Barograph - 287MQ

This barograph is designed for precise atmospheric pressure recording with a durable aneroid mechanism. It features a mahogany wooden case and a quartz clockwork that supports multiple recording periods for versatile indoor use.

Features:

• Durable aneroid capsules made from copper-beryllium alloy for stable pressure measurement
• Temperature-compensated mechanism suitable for -30°C to 40°C (-22°F to 104°F) environments
• Low-friction design with jewel-supported axles for accurate and smooth operation
• Polished brass components enhance durability and aesthetic appeal
• Adjustable quartz clockwork allows daily, weekly, or monthly recording cycles
• Includes a fiber pen for clear and consistent pressure charting
• Compact wooden case with a classic mahogany finish for indoor display
• Multiple recording periods support 25.6 h, 176 h, and 783 h chart rotations

Specifications:

• Measuring Range: 955 to 1055 hPa
• Accuracy: ±0.7 hPa
• Diagram Graduation: 1 hPa
• Aneroid Capsule Diameter: 2.44" (62 mm)
• Case Dimensions (W x H x D): 13.58" x 6.69" x 7.09" (345 x 170 x 180 mm)
• Operating Temperature Range: -30°C to 40°C (-22°F to 104°F)
• Clockwork Periods: 25.6 h / 176 h / 783 h
• Case Material: Wood
• Color: Mahogany

Included:

• (1) x Fiber pen
• (60) x Diagram papers for weekly use