onset systems has a couple of good options. i used hobo dataloggers with 4 ports hooked up to par and temperature sensors, which worked very well in Panama.

METEODATA-2000 o METEODATA-3000

This is designed and manufactured by GEONICA SA.

You can check out on his web side: www.GEONICA.COM

It is good to raise such an applied aspect. The Vaisala MAWS50 is compact and reliable Data Collection Platform (portable weather station), based around the field-proven QML201 Data Logger.