32 Bit ARM Microcontroller(QFN packaging)
OnBoard air-quality index sensor(UDFN packaging)
OnBoard Humidity and Temperature(UDFN packaging)
OnBoard battery charging circuit with (max charging current 500mA) through USB port. OnBoard lithium ion battery of 500mAh.
OnBoard SD Card slot for logging data.
User can log data of 28days on single charge
OnBoard Switch for wakeup and sleep mode
 
Passive components Pakaging size:0402 min and 0805 max
Diameter=30mm