Shenzhen Fanhai Sanjiang Electronics is one of the top three leaders in fire alarm industry. We manufacture fire alarm products such as control panel, smoke detectors, heat detectors, combustible gas detector, I/O module, fire repeater, sounder visual indicator, short circuit isolator, manual call point etc. We also produce video surveillance and intercom products such as megapixel HD infrared dome IP and outdoor bullet camera, door unit, door phone, etc. Welcome to visit our website: www.sanjiang-security.com