... Programmable minimum/maximum temperature alarm Ї Indoor/outdoor temperature and humidity in up to 3 remote locations (additional sensors required) Ї Barometric pressure in imperial or metric units Ї Altitude adjustment for pressure compensation Ї 24 hour barometric pressure history chart Ї Comfort level indicators (Dry, Humid and Comfort) 5 FRONT L A H G F E B I D J K C REAR M N O 6 A. WEATHER FORECAST/ PRESSURE window B ... Then press MODE to move to the ALTITUDE unit selection mode...