1. Last 30 days status indicator
Alarm indication ( ▲high, ▼ low alarm)
Upper and lower preset alarms
30 days memory legend
Current temperature
Last 30 days status indicator
OK/ALARM
HISTORY mode button
OPERATION MODE
Current time

2. HISTORY MODE Maximum or minimum temperature reached
(in this example -2.3oC)
Duration of the violation above the set limit
(in this example 3 hrs 12 min below -0.5oC)
Blinking indicator for the corresponding DAY in HISTORY mode
(in this example, you are reading the information recorded on 2 days ago)
HISTORY MODE