DT-859A/859B

The digital Multifunction Environment Meter has been designed to combine the functions of Sound Level Meter, Light Meter, Humidity Meter Temperature Meter and CFM/CMM Thermo-Anemometer (859B 5in1). It is an ideal Multifunction Environment Meter Instrument with scores of practical applications for professional and home use.

●The Sound level function can be used to measure noise in factories, schools, offi ces, home, etc, checking acoustics of studios, auditoriums and hi-fi installations.

●The Light function is used to measure luminance in the fi eld. It is fully cosine corrected for the angularincidence of light. The light sensitive component used in the meter is a very stable, long, life silicon diode.

●The Humidity/Temperature uses a humidity/semiconductor sensor and K type thermocouple.

●CFM/CMM Thermo-Anemometer is suitable for use in a wide variety of applications, including plant maintenance operations, environmental analysis, fume hood testing, and HVAC system assessment

Features

Larger LCD display with backlight.

Relative time clock on MAX MIN and AVG provides a time reference for measurement.

Display Sound, Light, Type K Temperature plus Humidity & Temperature simultaneously.

USB interface, USB to UART Bridge Controller..

Low battery indication, and Auto Power Off mode (Sleep mode) increases.


Size(HxWxD): 248mm x 65mm x 45mm

Weight: 365g



Specifications

Function

Range:

Resolution

Accuracy

DT-859A

DT-859B

Type K Temp

-200°C to 1372°C
(-328°F to 2501°F)

0.1°

Above -100°C (-148°F)
±[0.15%rgd+1°C(1.8°F)]
Blow -100°C (-148°F)
±[0.5%rgd+2°C(3.6°F)]

*

*

Air Temp

-30°C~100°C
(-22°F~199°F)

0.1°

±1°C/1.8°F

*

*

Humidity

0~100%RH

0.1%RH

±3.5%RH

*

*

Sound Level

30dB~130dB

0.1dB

±3.5dB

*

*

Light

20,200,2000,
20000Lux

0.01,0.1,1,10Lux

±5% ±10d

Anemo

0.40-30.00 m/s
80-5900 ft/min
1.4-108.0 km/h
0.9-67.0 MPH
0.8-58.0 Knots

0.01 m/s
1 ft/min
0.1 km/h
0.1 MPH
0.1 knots

±3% ±0.20 m/s
±3% ±40 ft/min
±3% ±0.8 km/h
±3% ±0.4 MPH
±3% ±0.4 knots

*

Air Flow

0-999,900 CFM
0-999,900 CMM

0.001 to 100 CFM
0.001 to 100 CMM

Accuracy is function of
velocity and area

*

Accessories :

9V battery, K-type temperature probe, %RH probe, dB probe, Anemo probe, photo detector

and gift box with carrying case.

DT-859A/859B
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