Search query: gas detector (Smoke & CO Detectors)
Product: classic barograph
Product class: Weather Instruments
Category: Outdoor / Outdoor Décor / Outdoor Thermometers
Description: record barometric pressure with this mechanical german-made classic barograph that measures variation in air pressure and transfers the data through a system of mechanical levers to the writing arm . housed in a rich mahogany case with glass sides and a polished brass handle , this barograph is equipped with a battery-operated quartz movement with 4 diaphragms that rotate the solid brass drum once a week , requires no winding , and is more accurate than key wound movements . the barograph readings are marked on paper charts with a felt tip pen .
Features: overalldepth-fronttoback:5|primarymaterial : wood , brass|warrantylength : lifetime|overallwidth-sidetoside:7.75|overallproductweight:3|producttype : barograph|overallheight-toptobottom:5.25|countryoforigin : germany|outdooruse : no|certifications : no|digitaldisplay : no|clock : no|commercialorresidentialcertifications : no|productwarranty : yes|supplierintendedandapproveduse : residential use