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||Multi-Function Probe Measures Air Speed, Temperature, Humidity, and Light Level
||Surface Temperature and Sound Level (Optional)
||Large Easy-to-Read Green Backlit LCD
||Max and Min Readings with Hold Function
||Automatically Logs Time Settable From 1 Sec to 1 Hr
||Supports Manual Data Logging and Changing of SD Card Storage Location
||Auto Power Off Function
The HHEM-SD1 meter comes with
a multi-function probe that is used
to make air speed, humidity and
light measurements. Surface
temperature and sound level are
made using optional accessories.
Several features and capabilities
enhance the meter’s versatility,
among them are automatic
temperature compensation for
measurements made by the
anemometer, a Type K or J
thermocouple input, the ability to
hold readings and display maximum
or minimum readings, and an
automatic power off function that
extends battery life.
Because it is microprocessor-based,
the HHEM-SD1 can make full use of
being portable. Reliability and large
storage capacities are enhanced by
an SD memory card.
Measurements can be made
automatically at any sampling rate
between one second and one hour.
After time-stamping and storing the
measurements on an SD card
plugged into the instrument, the user
can remove the SD card and plug it
into to a laptop or desktop computer
either directly or via a USB card
reader. The data is stored on the
card as files with the .xls extension,
which can be opened by Microsoft’s
The HHEM-SD1 has a backlit 2½"
diagonal display and is powered by
6 “AA” Alkaline batteries (included)
or an optional 9 Vdc AC adaptor.
Display: 52 L x 38 mm H (2.05 x 1.5") LCD
Air Speed: 0.4 to 25 m/sec, 1.4 to 90 km/hr, 0.9 to 55.9 mph, 0.8 to 48.6 knots, 80 to 4930 ft/min
Humidity: 0 to 85% RH
Temperature: 0 to 50°C (32 to 122°F); for RH, 10 to 95%
Light Level: 0 to 20,000 lux, 0 to 1860 ft-cd
Air Speed: ±(2% + 0.2 m/sec), ±(2% + 0.8 km/hr), ±(2% + 0.4 mph), ±(2% + 0.4 knots), ±(2% + 40 ft/min) (%’s are of full scale)
Temperature: 1.5°F (±0.8°C)
Humidity: ±(3% of rdg + 1% FS) for RH values >70% ±3% of rdg for RH values <70%
Light Level: ±(5% of rdg ±8 digits)
Data Logging Sampling Time: 1 second to 1 hr.
Settable Parameters: Date, time, auto power off, beep sound, sampling time, decimal point or comma decimal division, temperature unit, air speed unit, light level unit
Thermocouple Type: K or J (optional)
Storable/Recallable Readings: Max/min
Operating Temperature: 0 to 50°C (32 to 122°F)
Operating Relative Humidity: 0 to 85%
Power: 6 “AA” Alkaline batteries (included) or an optional 9 Vdc AC adaptor
Meter Dimensions: 135 H x 60 W x 33 mm D (5.31 x 2.36 x 1.30")
Weight of Meter: 515 g (1.13 lb)
Package Dimensions: 286 H x 251 W x 76 mm D (11.25 x 9.88 x 3")
Package Weight: 35 oz (2.16 lb)