Founded in Fuzhou, China in 2001 by Ken Li and his father Lee, Chuango AioT Technology Corporation specializes in wireless smart home technology ranging from automating security and home technology to energy management and health systems. After winning the Intruder Alarm or Outdoor Deterrent product award at the IFSEC & FIREX Awards, Chuango founded its European headquarters in Hoofddorp, Netherlands in 2013. This multifunctional branch is a design, support and logistics centre to serve existing and new Chuango partners and customers in the EMEA economic area. Chuango wants to offer the best for its customers. The team includes experienced sales and marketing, technical support and logistics, and consumer electronics and IT industries. Product Features: *Powered by sunlight and battery backup, fully wireless. *Compatible with all Chuango alarm panels and sensors. *Weatherproof for outdoor use. *Adjustable Siren Volume *Low battery warning (smart hub required) Technical data: backup battery 18650 3.7V 1800mAh rechargeable lithium battery. - Solar panel output current; 2000LX lighting ≥4mA (in sunlight). - Standby current: ≤1mA. - Alarm current: ≤350mA. - Maximum siren volume: 110dB. - Battery standby time: 45 days. - Wireless transmitting distance: ≤80m (in open terrain). - Operating conditions: Temperature: -10°C~+55°C. - Relative humidity ≤80% (non-condensing). - Case material: PC+ABS+ANTI-UV. - Dimensions 309 x 230 x 79.7mm (L x W x H).