User guide

• With roll over
• Finally press ALERT to confirm and exit
• When ambient RH reach the preset level, the
relevant arrow icon and the Humidity digit will
flash. Press any key to stop alarm and flashing.
• Alarm beeps for 60 seconds and rests for
55 minutes, it repeats beeping when within the
range. Press any key to stop beeping.
5. TEMPERATURE TREND:
- 3 arrows each for indoor and outdoor temp, total 6
arrows
- Up, Steady, Down
- Power-up display STEADY
- If temp goes up for 1.0 degree higher, the icon
immediately indicates UP
- If temp stays within 1.0 degree for 450 samplings
(1 hr), icon indicates STEADY
- If temp goes down for 1.0 degree or more, the icon
immediately indicates DOWN
- When MAX or MIN temp is on screen, a press on
the CLEAR button will immediately clear the UP or
DOWN icon to STEADY
DTH850 Manual -FIN3-100907 10/9/07 12:06