Wanlin (WANLIN) is a Chinese fire-safety brand and manufacturer focused on wireless manual fire alarm devices. Its products include 4G fire alarm call points, manual fire alarm buttons, and related wireless alarm equipment, developed for wholesale and customized supply. The featured WANLIN-222 is described as an independent 4G manual alarm button that works without a separate alarm control panel or wired installation.

When activated, it sends an alarm to a cloud platform and provides on-site voice and flashing-light alerts. The company also describes support for 4G, LoRa, NB-IoT, and Wi-Fi communications, with alarm information delivered to phones and cloud services. Its equipment is presented for homes, shops, rental properties, older residential buildings, temporary construction sites, and warehouses, including fire-safety retrofit projects.

Wanlin offers nationwide shipping and invites regional agents and business partners, with product, technical, solution, and information support. The website also provides product information, FAQs, news, and customer service for purchasing inquiries and cooperation