Chauvin Arnoux C.A 1860 Notice De Fonctionnement page 17

Indication off locking of the temperature measurement.
Activation of the LASER.
HI LO
High/Low alarm indicator.
Battery Low indicator.
SCAN
Measurement in progress.
HOLD
Value frozen (last value measured).
°F °C
Indication of the temperature unit.
Main display of temperature measured.
MAX MIN
AVG DIF
Indication of the active mode on the secondary display.
ε
=
Value of the secondary display.
Emissivity.
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