DEMROES - Hardware

Specifications

enduring (10 years), networkable (ethernet, 802.11, or 900MHz), local storage capability (1 month), high data quality at low cost

Components

Hardware list, budget, and power consumption for all possible components (add wiring requirements, sampling frequency).

Component	Cost [US$] Lamppost vs Roof	Power Consumption [mW]
dpac / gpac 802.11	100	150
2 mono pole antennas	75	--
900 MHz radio (alternative to dpac)	?	?
CSI1000 datalogger with vlinx serial2IP converter and dlb2700 wireless bridge incl PoE injector	1350 + 150 + 170	50 + 2,400 + 10,000
Sensorboard	?	--
12V Battery (batteriesasap.com) 7 Ah	15 -	--
Solar panel 5W - & charge controller	69+43 -	--
Enclosure Hammond 1590WBB	12.18 - 50?	--
Mounting Hardware for solar panel, battery / tower	100 - 200	--
TOTAL	700

Optional Components:

Sensor Cost [US$] Power Cons. [mW] Wiring Requ.

Sensirion SHT75 temperature & humidity with radiation shield 30 + 70 2 Digital

Humirel HTM2500 T/RH or 1500LF (T only) with radiation shield 53 + 70 2 Supply, RH_out & NTC thermistor

Platinum Resistance Thermometer US Sensor w/ CSI Bridge?, Fast Response Microprobe? ~$10 + 52 for WPB100 1Exc, 2 diff with 4WPB100

Battery voltage and solar power output -- -- 3x SE

Solar Radiation Li-200SZ (mA output) [W/m2] + 100 Ohm resistor and leveling fixture 195 + 47 -- amp or 1x diff

MicroChemical Systems SA MiCS 4514 CO (1-1000 ppm) & NO2 (0.05-5 ppm) Gas sensor 60 max 138 mW at 2.5V 2x SE

Zytemp Tn9 Infrared Radiometer 40? 16 Digital SPI

Omega OS136-(1)-V1 Infrared Radiometer + OS 100-MB mounting bracket 175+20 minimal SE or DIFF?

Davis 7911 wind speed / direction 120 minimal 1x Exc, 1x SE, 1x P

Davis rain gauge 75 minimal 1x P

Soil Moisture: ECHO-TE 200 serial digital to control

Two types of systems will be designed: Rooftop 6 ft tripods and Lamppost mounts. Rooftop systems would include all sensors, while lamppost mounts would be temperature and humidity sensors only. CSI rooftop total cost for sensors: $1140 + Logger & wireless $1670 + tripod & battery & SP & encl $350 = $3160

Sensor	Cost [US$]	Power Cons. [mW]	Wiring Requ.
Sensirion SHT75 temperature & humidity with radiation shield	30 + 70	2	Digital
Humirel HTM2500 T/RH or 1500LF (T only) with radiation shield	53 + 70	2	Supply, RH_out & NTC thermistor
Platinum Resistance Thermometer US Sensor w/ CSI Bridge?, Fast Response Microprobe?	~$10 + 52 for WPB100		1Exc, 2 diff with 4WPB100
Battery voltage and solar power output	--	--	3x SE
Solar Radiation Li-200SZ (mA output) [W/m2] + 100 Ohm resistor and leveling fixture	195 + 47	--	amp or 1x diff
MicroChemical Systems SA MiCS 4514 CO (1-1000 ppm) & NO2 (0.05-5 ppm) Gas sensor	60 max	138 mW at 2.5V	2x SE
Zytemp Tn9 Infrared Radiometer	40?	16	Digital SPI
Omega OS136-(1)-V1 Infrared Radiometer + OS 100-MB mounting bracket	175+20	minimal	SE or DIFF?
Davis 7911 wind speed / direction	120	minimal	1x Exc, 1x SE, 1x P
Davis rain gauge	75	minimal	1x P
Soil Moisture: ECHO-TE	200		serial digital to control