Mastercool Digital Vacuum Gauge with Thermocouple - 98061
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Mastercool 98061 digital vacuum gauge – thermocouple accuracy in your hand
Need a reliable and accurate way to confirm your system has reached deep vacuum? The Mastercool 98061 handheld vacuum gauge combines lab-level precision with rugged field-ready performance—no more bulky tabletop setups or fragile sensors.
What you'll find on this page
- ✅ Why thermocouple sensor technology?
- ✅ Smart design for busy HVAC techs
- ✅ Key specifications
- ✅ Optional accessories
Why thermocouple sensor technology?
Thermocouple sensors are known for being more accurate and durable than thermistor types, especially in real-world field conditions. This means fewer false readings, longer tool life, and less frustration on the job.
- ✅ Accurate across a wide range of vacuum levels
- ✅ Resistant to oil mist contamination
- ✅ Self-calibrating to maintain accuracy in field conditions
Smart design for busy HVAC techs
This handheld unit allows you to program your target vacuum range. A built-in light sensor alerts you when your desired vacuum is reached—so you can keep working while the system pulls down.
- ✅ Spiral sensor cable extends up to 6.5 feet (2.6m)
- ✅ 1/4" flare female adapter fitting
- ✅ Large digital display with multiple vacuum units
- ✅ Micron, Torr, mTorr, mmHg, mBar, and Pascal readouts
- ✅ Low battery icon and hold/target indicators
Key specifications
This unit delivers fast, accurate readings across a broad vacuum range—ready for deep vacuum pull-downs in residential, commercial, and automotive HVAC work.
- ✅ Response time: 250 milliseconds
- ✅ Operating temperature: 0–45°C (32–120°F)
- ✅ Accuracy range: up to ±5% of reading below 100 microns
- ✅ Power: 9V battery (36 hours runtime)
- ✅ Packaged in a blow-moulded case
Optional accessories
Need replacements or extras? We’ve got you covered with official Mastercool accessories designed for this unit.
- ✅ 98061-SENSOR – Replacement thermocouple sensor
- ✅ 99334-110 – 110V AC/DC power adapter
- ✅ 99333 – 1/4" FL-M x 1/4" FL-M x 1/4" FL-F tee
Take the guesswork out of deep vacuum testing. The Mastercool 98061 digital vacuum gauge is your reliable companion on every job.
