1. Automatic faucet.
2. Low battery indicator: red led flash.
3. Weakness of battery: red led on, CPU off.
4. Warranty: one year.
1. Body: solid brass with chrome. 2. Power: (1) >DC AA alkaline battery x 4. (2) >AC/DC alternately. 3. Working pressure: 0.2~ 15kg/cm^2. 4. Water supply pipe size: NPSM 1/2- 1/4. 5. Ambient tem.range: 2~ 90 celsius. 6. Sensing distance: 2~ 17cm ( default 17 cm). 7. Sensing range setup: digital. 8. Response time: 0.3 sec ( default), 0.6 sec. 9. Pop-up drain: yes. 10. Fresh battery life cycle: 500,000 on/off.