Controlled over WIFI using preprogrammed command sets or html page.
Relays - 4 with snubbers for inductive loads
Inputs - 2 x 3.3v inputs (supports direct vfc connection)
Power - 12V DC adaptor, supplied separately
Control interface - HTTP (webpage), HTML commands, MQTT commands or plain text commands (ASCII terminal)
Relay current - Up to 16Amp @24vdc or 250vac
Output connections - Screw Terminals for N/O N/C and Common contacts.
Programming connection - USB programmable with Arduino IDE
Built around the ESP-WROOM-32, the module is fully customisable around open source software.
Free Android and iPhone Apps are available to remotely control this module.