Weather Stations:

The Weather Station is completely weatherproof and feature 12-bit resolution for higher accuracy.
The stations can be accessed at different times by multiple users because the data is not cleared from memory following a download. The weather stations can communicate via direct-wire, radio or telephone connections.
Current weather conditions, historical data, and computed parameters are easily viewed on the station’s LCD screen.
The station LCD can also be programmed to display a variety of plant disease infection potentials. The arrow keys can be used to program the station’s logging interval and assign sensors to the external sensor ports. You can also scroll through the sensor readings, Degree Day/Chill Hour calculations and set your temperature ranges.
Although a rain collector can be added as an optional external sensor.

Specifications:

Data capacity
8800 data intervals. For example, for a 30-min interval,
meter will run for 183 days before wrapping data.
Height
12 inches (30 cm) with rain collector
10 inches (26 cm) without rain collector
Width
8.5 inches (21.5 cm)
Depth
12 inches (30 cm) with rain collector
3.5 inches (8.5 cm) without rain collector
Weight (with rain collector and anemometer)
6.4 lbs (2.9 kg)
Power Source
4 AA batteries
Battery Life
12 months
External Sensor ports
6 (5 on model 2900ET, 9 on model 2800)
Internal Sensors
The following table lists the specifications for sensors that are included with the different models of weather station