Audited Supplier
Optical/photoelectric Smoke detector Battery operated
Low battery single
Test button(RED LED)
Solid connections and battery included
CE EN14604 APPROVAL
Brief introduction
KD-125A/B/C Smoke Alarm is a photoelectric smoke alarm with low power consumption. Internal precise analog circuit and digital circuit make the detection work more stable and reliable. The product has a small size and uses large-capacity battery which can provide service life of 5 years.
Technical Parameter:
| Technical parameters | Smoke detection | ||
| Voltage | DC3V(AAA*2) | ||
| Low battery warning | 2.2V | ||
| Current | Alarm current | Quiescent current | |
| ≤120mA | ≤2uA | ||
| Status display | Standby condition | LED (red) flashes once about every 344 seconds, no alarm sound | |
| Alarm condition or test | LED (red) flashes and continuous alarm is given | ||
| Low sensitivity detection (silence mode) | LED (red) flashes every 10 seconds, no alarm sound, automatically cancel low sensitivity detection about 9 minutes later | ||
| Alarm memory | LED (green) flashes 3 times about every 43 seconds, and that stops 24 hours later. The first time you press test/hush button after alarm is made, the detector will hint by special alarm mode. | ||
| Low battery warning | The product beeps about every 43 seconds | ||
| Alarm loudness | ≥85dB/3meters | ||
| Working temperature | -10ºC~+40ºC | ||
| Ambient humidity | ≤95%RH (no condensation) | ||
The smoke alarm works on the principle that infrared scatters in the smoke to probe the smoke which is generated by the incomplete combustion at the initial stage of the fire. It consists of photoelectric system, signal processing identification circuit and alarm circuit. The infrared scatters on the surface of the smoke when the smoke enters the darkroom of the detector, then the photoelectric diode receives the scattered light and generates the photoelectric signal current. The photoelectric signal generates the alarm signal after being processed by the identification circuit, accordingly the purpose of alarming is achieved
