| Model: | QH-831A |
|---|---|
| Brand: | Quhwa or OEM brand is available |
| Origin: | Made In China |
| Category: | Security & Protection / Access Control System |
| Label: | doorbell , wireless doorbell , door bell |
| Price: |
US $6.38
/ pc
|
| Min. Order: | 1000 pc |
| Last Online:30 Apr, 2014 |
*FCC,CE and RoHS compliant
*Transmitter/bell push IP44 waterproof
*1 million sets of auto-learning codes to avoid interference
*Energy saving,transmitter battery can be used for over 15 months,and receiver batteries for at
least 6months
*Music volume adjustable;flash,ring,or flash+ring for function option
| Model No. | QH-831A |
| Frequency | 315MHz±0.5MHz
433MHz±0.5MHz |
| Active pressure wave(receiver) | ≤-57dbm |
| Negative pressure wave(transmitter) | ≤-36dbm |
| Power supply(receiver) | 2X1.5V AA |
| Power supply(transmitter) | CR2032 3V CELL BATTERY/1X12V 23A ALKALINE BATTERY |
| Quiescent current | ≤200uA |
| Transmit power | <10mW |
| Operating range | 80 METERS(OPEN AREA) |
| Sound options | 36 Polyphonic
Melodies |
