DT-8820 4 IN 1 Multi-Function Environment Meter
I. Specifications:
Display
|
Large 1999 counts LCD display with function of Lux , x10 Lux, ºC, ºF, %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
|
-10ºC to 60ºC(14ºF to 140ºF) at< 80% relative humidity
|
Auto Power Off
|
Meter automatically shuts down after approx.10 minutes of inactivity
|
Power
|
One standard 9V, NEDA1604 or 6F22 battery.
|
Sound Level
|
Measurement range
|
A LO (low) – Weighting
|
35-100 dB
|
A HI (High)- Weighting
|
65-130 dB
|
LO (low) – Weighting
|
35-100 dB
|
C HI (High)- Weighting
|
65-130 dB
|
Resolution
|
0.1 dB
|
Typical instrument frequency range
|
30Hz-10KHz
|
Accuracy
|
±3.5 dB at 94 dB sound level, 1KHZ sine wave
|
Light
|
Measuring Range
|
20, 200, 2000, 20,000lux(20,000lux range reading x10)
|
Accuracy
|
±5% rdg +10 dgts
|
Repeatability
|
±2%.
|
Humidity/Temperature
|
Humidity
|
25%~95%RH
|
Temperature
|
-20.0ºC~+50.0ºC -4ºF~+122ºF
(K-type) -20.0ºC~+200.0ºC -20ºC~+750ºC;
-4.0ºF~+200ºF, -4ºF~+1400ºF
|
Input Protection
|
60V dc or 24V ac rms
|
Size(HxWxD)
|
251x63.8X40mm
|
Weight
|
250g
|