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Teledyne DVT-4B Vacuum Gage HVAC / Refrigeration Transformer Oil Lab Untested
from a working environment, but I have no way of testing before sale.
Sold as is for parts not working. Last calibrated 2017. Please see
From the online product manual:
Hastings Instrument’s Digital VT, is a digital readout version of the
successful VT-Series “Hastings Gauge” which has generated loyal
customers for over 50 years. A reputation has been built on exceptional
stability, accuracy, and reliability under the most demanding
conditions. A precision A/D converter, with a microprocessor is used to
measure the gauge tube’s signal output; it converts the measurement to
a pressure reading using the gauge tube’s well defined output/pressure
function, and then display the result. The DV-4 range is 0-20 Torr. All
VTSeries Vacuum Gauges feature long life and minimal maintenance.
These instruments utilize Hastings rugged noble metal TC gauge tubes
that are designed specifically for each range. Tubes are matched and
interchangeable without calibration adjustments. They are compensated
for temperature, rate of temperature change and are corrosion