Based on the independent smoke sense, the wireless smoke sense is derived, and a wireless signal will be sent out when an alarm is given. The launching distances are different, but they are basically within 100 meters. If you need a longer distance, you need to add a repeater, which is suitable for combining with anti-theft into a small system, but the stability is not ideal.
JTY-GD-DG3 1 1 Networked photoelectric smoke detector (hereinafter referred to as detector) is suitable for fire warning in homes, shops, dance halls, warehouses and other places. The detector has the characteristics of high sensitivity, stability, reliability, low power consumption, beautiful and durable, easy to use and so on, and can be used with security systems. Alarm sound: ≥80dB
Power supply: DC9V~DC28V
Current: Static current ≤200uA.
Alarm current ≤45mA
Working temperature:-10℃ ~+50℃
Relative tenderness: ≤95% relative humidity (40℃ 2℃)
Output form: acousto-optic alarm/relay passive contact (NO/NC can be set) output.
Overall dimensions: direct 103mm, height 55mm (with base) Self-inspection: When the inspection button is pressed, the detector LED will always light up and give an alarm sound at the same time (note: self-inspection only detects the internal function of the detector itself, and there is no relay signal output during self-inspection).
Work: Under normal circumstances, the indicator light of the detector will flash every 6 seconds. The detector automatically detects the smoke concentration in the surrounding environment and automatically compensates the sensitivity according to the use environment. When the smoke concentration is close to the alarm value, the detector speeds up the intelligent calculation of the smoke concentration trend, and the alarm indicator light starts flashing. If the calculation result reaches or exceeds the alarm value, the detector will start the acousto-optic alarm and start the relay output. When the smoke concentration in the surrounding environment drops below the alarm value, the detector automatically returns to the normal working state.
Output: passive contact output; The contact capacity is 24v/2a, which can be set as normally open or normally closed contact output through the jumper inside the detector. When the jumper leaves the factory, the silent contact is normally closed. Optical smoke detectors can detect potential combustion faster, while ion smoke detectors can detect flame faster. In practical use, we certainly hope to give an alarm when the burning degree of the object is very low, so that people can react quickly, avoid personal injury and reduce property losses. So choose one of the two, choose the optical smoke detector. Of course, it is better to use both.
Because the ion smoke detector uses the radioactive substance americium 24 1, although the radioactive pollution of americium 24 1 is small, and the detector has some protective measures in structure, there is still very weak radioactive pollution around the detector. Modern people pay attention to comfort and safety, so the ion detector, which has been popular for decades, gradually quits the stage and is replaced by a safer and more environmentally friendly optical smoke detector.