Details
DESCRIPTION
WS3900- 7.5" LCD display & 8 physical buttons.
- Support DC powered and 3 x AA alkaline or lithium batteries powered (3 fresh AA batteries (not included) can run for 15-25 days. Only used as a short-term backup power).
- Supports monitoring indoor and outdoor conditions, it has built-in temperature, humidity, and barometric pressure sensors, and can connect almost all Ecowitt transmitters with the same RF frequency to use together, to get accurate weather data including wind speed, wind direction, rainfall, UV, solar radiation, outdoor temperature, outdoor humidity, dew point, feels like, CO2, PM1.0, PM2.5, PM10 and more.
- Sensor: Piezoelectric rain gauge; Ultrasonic wind speed, gust speed, and wind direction; Temperature; Humidity; Solar light intensity and UV index; Waterproof IPX5;
- The supply voltage range can only be 5~20V, more than that will be very dangerous and will cause damage to the WS90.
TECHNICAL DATA
|
Model |
WS3900 |
|
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) |
|
Reading Update Interval |
About 1 minute |
|
RF Connection Frequency |
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 |
|
WLAN Range |
Over 30 meters (in open areas) |
|
Console Operating Temperature |
-10°C to 50°C(14℉ to 122℉) |
|
Power Supply |
DC 5V 1A or 3 AA Alkaline or Lithium Battery (not included) |
|
Battery Life |
15-25 days (Back-up only) |
| Model | WS90 | ||
| Measurement | Range | Accuracy | Resolution |
| Wind speed | 0m/s to 40m/s | <10m/s, ±0.5m/s; ≥10m/s, ±5% | 0.1m/s |
| Wind direction | 0° to 359° | <2m/s, ±10°; ≥2m/s, ±7° | 1° |
| Temperature | -40°C to 60°C | ±1°C (± 1.8°F) | 0.1°C (± 0.2°F) |
| Humidity | 1% to 99% | ±3.5% | 1% |
| Light | 0Klux to 200Klux | ±15% | 0.1Klux |
| UVI | 1 to 15 | ±2 | 1 |
| Rain | 0 to 9999 | Varies by rainfall type and environmental conditions | 0.1mm |
- Sensor solar panel (built-in): 6.5V/4mA
- Sensor (backup): 2 x AA 1.5V battery (not included)
- Transmission distance in open field: 150 m (500 ft.) depend on environment
- RF frequency: 433/868/915/920 MHz depending on location
- Sensor reporting interval: 8.8 seconds
View more about WS3901 Electronic 7-in-1 Wi-Fi Weather Station on main site