V-Great VG-6647 Addressable Multisensor Detector

The V-Great VG-6647 (VG-6647 Digital Multi-sense Detector) is an intelligent addressable combined optical smoke and heat detector engineered by V-Great Global for commercial, industrial, and residential fire safety installations. Combining an optical light-scattering chamber with a precision thermistor temperature sensor inside a plug-in enclosure, the device evaluates smoke obscuration and thermal shifts simultaneously while occupying only a single address on the loop. Powered by an onboard MCU executing dynamic signal evaluation algorithms, the unit provides early warning for both fast-flaming blazes and slow smoldering fires while maintaining high resistance to deceptive false alarms. Operating over a 16V to 28V DC 2-wire non-polarized loop, it supports handheld electronic addressing via the VG-6537 programmer, configurable heat classifications (Class A1R rate-of-rise or Class A2 static), automatic chamber drift compensation, 360-degree visual LED indication, and full LPCB EN 54 certification.