J. E. Tillman
                                Live from Earth and Mars
School Weather station          99/05/11                        Ver. 1
(LFEM standard)

Unless otherwise noted, sensor identifications are Campbell part numbers
obtained from:

                                                     Total 
                  Sensor or                         Units 
                  system        Price     Notes
	                         $ US
R M Young
Wind Sentry speed and direction  $    435.00             1

Temperature_1
UW Thermocouplles		 $     65.00             5
AD595 based system

Humidity
Vaisala CS500-			 $    350.00	         1
Built in temperature
(Wire $0.50/foot * 100 ft)	 $     50.00

Solar Radiation
LI-COR Pyranom			 $    245.00             1

Pressure, 600-1060 mbar range
Vaisala CS105			 $    525.00             1
"+/_ 0.5 mb accuracy "

Precipitation
8" Tipping Bucket		 $    295.00		 1

Radiation Shields
R.M. Young Co.			 $    160.00             2

Hardware  eg:
Mast, Guywires,   Hardware Store $    250.00             1
Turnbuckles etc.

Wire, Thermocouple Omega         
$ 75.00/ 100 ft * 20ft		 $     15.00


Surge protector
Campbell, enclosure		 $     30.00             1

Datalogger
Campbell CR10X			 $  1,090.00             1
____________________________________________________________

Total                            $  3,510.00
"+ tax" - discount


This weather station is designed to work with the new Live from Earth
and Mars program of Professor Tillman and collaborators, in
conjunction with his participation in the NetLander Mission to Mars
and development of educational resources related to boundary layer
meteorology. In some instances, the instruments are a compromise
between cost, performance and reliability. The pressure sensor has
better than Weather Service resolution while the standard Weather
Service Station station does not report solar radiation. The data
logger is a complete, easily programmable system using its own sensor
specific algrbraic language. It is of the highest reliability, ease of
use an accuracy in its cost range. The Campbell system feeds data over
a serial port to a computer on which we have installed the Linux
operating system, and utilities. Most important, is our installation
of the Unidata data distribution software, which automatically relays
and confirms receipt of data to collaborating sites.