1. INTRODUCTION
The 4 in 1 digital multi-function Environment Meter has been
designed to combine the functions of a Sound Level Meter, Light
Meter, Humidity Meter and Temperature Meter. It is an ideal
multi-functional test instrument with scores of practical
applications for professional and home use.
The sound level function can be used to measure noise in
factories, schools, offices, airports, home, etc., checking the
acoustics in studios, theatres and hi-fi installations.
The light function is used to measure the Lux level. It is fully
cosine corrected for the angular incidence of light. The light
sensitive component used in the meter is a very stable, long life
silicon diode.
There is a semiconductor sensor for Humidity measurements
and a K-type thermocouple for temperature measurement. This
user’s manual contains general information and specifications.
2. FEATURES
4 measuring functions: sound level, light, humidity and
temperature.
3½” large LCD display with units of Lux, °C, ºF, ˁRH and C
& dB, A & dB indication.
Easy to use
Light measuring levers ranging from 0.01 lux to 20,000 lux.
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Sound level range:
A LO (low) – Weighting: 35-100 dB
A HI (High)- Weighting: 65-130 dB
C LO (low) – Weighting: 35-100 dB
C HI (High)- Weighting: 65-130 dB
Resolution: 0.1 dB
Humidity measurement from 25ˁRH to 95ˁRH with 0.1ˁ
RH resolution and fast time response.
Temperature measuring levers ranging from – 20.0°Cˇ
750°C /-4°Fˇ1400°F
3. SPECIFICATIONS
Display: Large 1999 counts LCD display with function of Lux ,
x10 Lux, °C, °F, %RH and dB, A & dB ,C & dB, Lo & dB, Hi & dB,
MAX HOLD, DATA HOLD indication.
Polarity: Automatic, (-) negative polarity indication.
Over-range: "OL" mark indication.
Low battery indication: The "BAT" is displayed when the
battery voltage drops below the operating level.
Measurement rate: 1.5 times per second, nominal.
Storage temperature: -10°C to 60°C (14°F to 140°F) at˘80ˁ
relative humidity
Auto Power Off: Meter automatically shuts down after approx.
10 minutes of inactivity.
Power: One standard 9V, NEDA1604 or 6F22 battery.
Dimensions/Wt.: 251.0 (H) x 63.8 (W) x 40 (D) mm/250g
Photo Detector Dimensions: 115X60X27mm
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