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4 in 1 multi environment tester lux wind sound temp rh
DT8820 Multi Environment Tester LUX Wind Sound Temp RH
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 80 relative humidity
Auto Power Off: Meter automatically shuts down after approx.10 minutes of inactivity.
Power: One standard 9V, NEDA1604 or 6F22 battery.
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
Typical instrument frequency range: 30Hz-10KHz
Frequency Weighting: A, C weighting
Accuracy: 3.5 dB at 94 dB sound level, 1KHZ sine wave.
Measuring Range: 20, 200, 2000, 20,000lux
Temperature -20.0 C~ 50.0 C -4 F~ 122 F
(K-type) -20.0 C~ 200.0 C -20 C~ 750 C;
Resolution: 0.1 RH, 0.1 C, 1 C/0.1 F, 1 F.
Humidity: 5 RH (at 25 C, 35 95 RH)
Response time of the humidity sensor: approx. 6min.
3%rdg 2 C(at-20.0 C +200.0 C)
3.5%rdg 2 C(at-20.0 C +750 C)
3%rdg 2 F(at-4.0 F +200.0 F)
Input Protection: 60V dc or 24V ac rms.
