Feature:Aneroid Barometer Model No.:B9193 Measure Range:950~1070hPa Accuracy:+/--5hPa(980~1040hPa) Unit Size:approxQ9 Front Diameter 70mm Back size:100mm Weight :0 Color: gold material: metal Package Contents:1* Barometer Only the above equipment content, different item are not included. Note: Light and various reveals may cause the colour of the article within the photograph a little diverse from the real thing. The length allowed error is +/- 1-3cm.