Iso-Tech IDM99II Instruction Manual page 20

(9) Temperature (℃)
Temperature
-20°C ~ 0°C
1°C ~ 100°C
101°C ~ 500°C
501°C ~ 800°C
Accuracy
±(2% reading + 4°C)
±(1% reading + 3°C)
±(2% reading + 3°C)
±(3% reading + 2°C)
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Overload Protection
600V rms