Specifications

Our HMP 45D relative humidity probe is designed for
use with a solar radiation shield in outdoor condi-
tions of -40 to +140°F (-40 to +60°C). For quick and
easy calibration, the probe head containing the
sensor and electronics can be removed from the
probe body, a replacement installed and the mea-
surement continued while the original sensor head is
calibrated in a laboratory.
The HMD60UO/YO probes offer economical solu-
tions for measuring outdoor RH and T as part of
HVAC and building automation systems.
Vaisalas wind instruments are approved by the
FAA for use in their Automated Surface Weather
Observation (AWOS) at airports, and are available
in flexible configurations, along with displays, to
meet most industrial applications.
Reliable Meteorological Measurement Instruments and Systems
Vaisala is the largest worldwide manufacturer of
meteorological instruments and systems, all of
which are described in other publications available
upon request. Here we are featuring a small
selection of meteorological RH instruments and
wind instruments and systems ideal for industrial
applications such as power plants, paper mills, and
refineries.
NEW: The PTU 200 combines barometric pressure,
humidity and temperature measurement in a
digital transmitter.
NEW: The PTB 220TS Barometric Pressure
Transfer Standard offers a total output accuracy of
±0.2 hPa (mbar), and comes in a handsome, solid
oak carrying case.
Vaisala barometers offer excellent performance in
a variety of applications including: weather
stations, data buoys, environmental data logging,
and pressure sensitive industrial equipment such
as laser interferometers and lithography systems.
The PTB 100 series are analog barometers which
offer excellent room temperature characteristics
and very low power consumption.
The PTB 220 series, provide serial output and total
accuracy of ± 0.2 hPa (mbar) over wide meteoro-
logical pressure and temperature ranges. The PTB
220 also offers the ability to incorporate up to three
independent BAROCAP sensors for double or triple
redundancy.
Barometers for Industrial and Meteorological Applications
Vaisalas barometers utilize our patented BAROCAP
®
micromachined silicon capacitive sensor. BAROCAP
offers unmatched accuracy and outstanding tempera-
ture and long-term stability. Choose from three series,
all NIST traceable.
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