Model No: QH-939D
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QH-939D
WIRELESS MECHANICAL STRIKING DOORBELL
· Multi-code transmission to prevent interference from
neighbor's door chimes
· ROHS,R&TTE,FCC compliant
· Easy to install, wire free
· PCB assembled by SMT machine
· Up to 100 meters range, but walls, metal frames and
electrical interference will reduce the operating distance
· Electro-mechanical sound (Ding Dong only)
· Different painting available
| Model No. | QH-939D |
| Frequency | 315MHz±0.5MHz 433MHz±0.5MHz |
| Active pressure wave(receiver) | ≤-57dbm |
| Negative pressure wave(button) | ≤-36dbm |
| Power supply(receiver) | AC110/230V |
| Power supply(button) |
1*12V 23A |
| Working power consumption | ≤5W |
| Transmit power | ＜10mW |
| Operating range | UP to 100 meters(OPEN AREA) |
| Sound options | Electro-mechanical ding dong sound |
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