Fluke 233 Getting Started Manual page 9

No. Symbol
4 Radio connection indicator.

C, F
5 degrees Celsius, degrees Fahrenheit
6 A amperes (amps)
volts, millivolts
V, mV
F, nF microfarad, nanofarad
DC AC Direct current or alternating current.
, M , k ohm, megohm, kilohm
hertz, kilohertz
Hz, kHz
7 remote  Battery low warning for the display module.
8 Manual Range Manual range set.
9 Auto Range Auto range set.
10 meter  Battery low warning for Meter base.
11 Diode test mode.

12 Continuity test.

13 Input is a negative value.

14 X Hazardous voltage. Measured input voltage 30 V, or voltage overload condition (OL). For

frequency measurements >1 kHz, the  symbol and high-voltage LED is unspecified.
True-rms Remote Display Digital Multimeter
Table 2. Display (cont.)
Indication
Features
7