ECOWITT WS3900 - Page 53

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Model
WS3910
Name
Weather Station (receiver)
Dimensions
209×28.5×142.5(mm)
Screen Size
169×94.5(mm)
Weight
366(g)
Material of Plastic Casing
ABS
Material of Screen
VA-LCD
Temperature Metering Range
-9.9°C to 60°C(14°F to 140°F)
Temperature Metering Accuracy
±0.2°C(±0.4℉)
Temperature Metering Resolution
0.1°C(0.2℉)
Humidity Metering Range
1% to 99%
Humidity Metering Accuracy
±2%
Humidity Metering Resolution
1%
Barometric Pressure Metering
range
300 to 1100 hPa (8.85 to 32.5 inHg)
Barometric Pressure Metering
accuracy
±1.5hpa(absolute pressure );
±2hpa(relative pressure)
Barometric Pressure Metering
resolution
0.1 hPa (0.01 inHg)
Photoacoustic NDIR CO₂
Metering range
0 to 40000 ppm
Photoacoustic NDIR CO₂
Metering accuracy
±(50ppm + 5% of reading) when 400
to 2000 ppm
Photoacoustic NDIR CO₂
Metering resolution
1ppm
Photoacoustic NDIR CO₂
Accuracy drift per year
± (5ppm + 5% of reading)
Reading Update Interval
About 1 minute
RF Connection Frequency
920/915/868/433MHz (depending on
local regulations)
RF Wireless Range
Over 100 meters (in open areas)
WLAN
802.11 b/g/n 2.4 GHz
(802.11n, Max 150 Mbps)
Power Supply
DC 5V 1A or 3 AA
Alkaline or Lithium
Battery (not
included)
Battery Life
1 Day
Table 10: Specifications