smoke alarm 4g smoke detector wifi zigbee nb-iot networking mobile phone independent smoke detector 烟雾报警器4G烟感探测器WiFi Zigbee NB-IoT联网连手机独立烟感

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Shop address: No. 22 Gate 9 Street, F2-13554, Yiwu International Trade City, District 2, Yiwu, Jinhua, Zhejiang Province
1 89 58 49 35 35 4 Ms. Li
New store address: Yiwu Global Trade Center
Unit 4, Floor 3, Street 2, Yiwu Sixth District Market
7733 Store (Yunqiong Zhichuang) Gate No. 153
77753 Store (Yishu Yun) Room 153, Door 1
Mr. Jing 1 5392 0 3 6 1 9
Ms. Mei 1735 799 5021

① On-site sound and light alarm models: (Models: SD7/SD5/SD1)
Pure on-site sound and light alarm, no wiring required, no network connection needed, no need for a host unit. Quick installation by sticking it onto the ceiling, ready for use immediately; simple daily maintenance, high cost-performance ratio.
② Interconnected alarm model: (Model: MSD05)
Wireless pairing and integration for the same model—no wiring required. Whenever any smoke detector triggers an alert, all paired smoke sensors in the entire house will emit high-volume sound and light alarms simultaneously. Independent audio output ensures that even without network connectivity, the linked alarm function remains operational, eliminating issues such as power outages or network failures that could cause security failures.
③ 433MHz model: (Models: SD7/SD5/SD1)
After detecting the fire, alarm information is sent in real time via RF signal to the KeRui alarm unit, which simultaneously activates the siren and sends a remote alert; it is compatible with all KeRui GSM/WiFi alarm units and can be combined with door sensors and infrared detectors to form a complete security system for unified centralized management.
④ Graffiti Wi-Fi Smart Model: (Model: WSD05)
Direct connection to home Wi-Fi, no gateway required. Access via the Graffiti Smart APP. Fire alerts trigger on-site audio and visual alarms. Real-time pop-ups and message notifications on the phone allow you to be informed remotely about emergencies at home while you are away for work or business trips. Alerts can be reported remotely through the APP, making control very convenient.
⑤ NB-IoT Internet of Things smoke detector: (Model: NSD05)
Relying on the operator's NB IoT private network, there is no need for Wi-Fi or broadband connection. Basements, warehouses, and older houses without network cables can still achieve stable connectivity. Triple alert mechanisms include fire SMS notifications, phone calls, and an APP alert.
⑥ Zigbee Smart Model (SD13):
Equipped with Zigbee 3.0 intelligent wireless protocol, it requires a smart gateway for use. It features stable signal, strong signal penetration through walls, extremely low latency, and support for deep intelligent integration across multiple devices. Unlike conventional WiFi devices that only provide alerts, this device can integrate into a whole-home smart system, enabling automated scenarios such as automatic lighting activation, window opening, gas shutdown, and full-home alarm activation in case of fire. It supports unified management via graffiti or mainstream smart home platforms. Devices can be grouped in batches, their online status is monitored in real time, and remote alerts are provided when battery levels are low. It is suitable for high-end fully integrated smart environments and bulk intelligent transformation projects. Its signal resistance to interference is superior to 433 MHz and ordinary Wi-Fi. It has a large networking capacity, allows multiple devices in a building to remain stable online, avoids lagging, and prevents disconnections.

⑦4G model and 5G model are customizable.