Material: FR4 TG170
Finish treatment: Immersion gold 10U''
Copper thickness: 1oz finished,
Board thickness:  1.6mm 
Copper in vias : 20um 
Outline tolerance control +/-0.1mm
Copper plugging in BGA 
Conformal coating to outdoor water-proof
BGA 100% tested
Function: To protect garden flower or monitor the vegetable grow conditions.