Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Barometric Pressure Sensor

At sea level 760 mmHg
At 600m (1969 ft) 710 mmHg
At 1200m (3937 ft) 660 mmHg
At 1800m (5906 ft) 610 mmHg

NOTE: All readings are approximate depending on atmospheric pressure and elevation.