4 Pcs Boat Barometer Clock Thermometer Hygrometer Weather Station Set Wall Mounting Type Brass for Case for Shell Lightw Hygrometer with Probe App<br> <br> 4 Inches 4 PCS/set Thermometer Hygrometer Barometer Watches Clock Copper For Shell Marine For Weather Station<br> Features:<br> 1.Precision temperature sensing hairspring; Precision wet hairspring; Precision gear transmission structure barometer movement; 1 second precision clock movement; Metal pointer.<br> 2.Readings Comparison: The contrast pin on the lens is used to compare readings to see if atmospheric pressure rises or falls over a certain period of for time.<br> 3.Wide Applicability: Generally applicable to ships, factories, laboratories, families.<br> 4.Easy to Install is lightweight and easy to install, suitable for hanging or placed on a .<br> Parameter:<br> Material: brass for shell, plastic bottom for shell, acrylic plastic lens<br> Size(about):<br> thermometer: diameter: 98mm/3.86in, thickness: 33mm/1.30in;<br> hygrometer: diameter: 98mm/3.86in, thickness: 33mm/1.30in;<br> barometer: diameter: 98mm/3.86in, thickness: 36mm/1.42in;<br> timepiece: diameter: 98mm/3.86in, thickness: 32mm/1.26in<br> Dial: 0.3mm aluminum sheet printed black on white.<br> Measurement function parameters:<br> thermometer: -30 ~ 50C, accuracy: +/- ;<br> hygrometer: 0 ~ RH,<br> accuracy: +/- 5% RH (40 ~ 70% RH);<br> barometer: 950 ~ 1070hPa,<br> accuracy: +/-5hpa (980~1040hPa);<br> timepiece: travel for time error is not more than +/-1 second / day<br> Note:<br> 1.Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid<br> 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.<br> Package List:<br> 1 *Air pressure gauge<br> 1*Thermometer<br> 1*Moisture meter<br> 1*Timepiece<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia