The HPM 4/5/6 is a hand-held, battery-operated digital Thermocouple vacuum gauge. The HPM 4/5/6 features a precision A/D converter along with a microprocessor to measure the thermocouple vacuum gauge tube’s signal output. The HPM 4/5/6 is compatible with three of the most popular gauge tube families: DV4, DV-5 and DV-6. These tubes utilize rugged but sensitive noble metal thermocouples that are designed specifically for each range.
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