Dimension: 69*52*5.8 mm (I16) / 72.2*46.5*4 mm (I20)
Weight: 16.5g/16g
Material: PC+ABS/ABS
Power Supply: 5 years
Keypad: 16 buttons
Algorithm: OATH Time and OCRA based
Working Temperature: 0 C - 40 C (32 F - 104 F)
Physical Resistance: Tamper evidentIP65 ingress protection (under evaluation)