Greisinger GIR 2000 Pt Digital Thermometer -50 To +200 Deg

LED - Light Emitting Diode - a small light source

Digital - A system that uses only 0s and 1s to transmit data

Alarm - A device which emits a sound at a pre-set time/event

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

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