Iso-Tech IDM 98-III Instruction Manual page 5

Measuring Continuity / Diode
Rotate the switch and press the Function button to select the
measuring function.
See "Using the Function Buttons"
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IDM 98III / 99III English IDM 98III / 99III English
Measuring Temperature °C / °F (for IDM99-III only)
Rotate the switch and press the Function button to select the measuring
function.
See "Using the Function Buttons" (°C / °F)
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