8 Sensors in 1 - Integrated sensors to measure various ambience conditions. Equips with a 4.2 inch E-ink screen to visually show the real-time ambience conditions in many ways. Easy Configuration via NFC. Replaceable (not rechargeable) Li-SoCl2 4 x 2700 mAh Battery Power (batteries included).
Key difference between AM308 and AM319 is AM308 is powered by battery, while AM319 is on USB Type-C.
Also AM308 does NOT have options on Formaldehyde nor Ozone.
