Feature 1Graphical Design: Adopts a 128x64 LCD screen. With a graphical design, the main menu is artistic as well as informative: it can display up to 10 parameters and states. Able to read the historical data of a certain day. 2Powerful BLE4.0A Function: A lowpowerconsumption BLE4.0 feature enables more powerful functions when pairing with a mobile APP (optional). 3Controller Abnormality Alarm: Employs two indicator lights to indicate controller abnormalities and communication errors respectively. Features a controller abnormality voice alarm function which can be switched on/ off. 4Monitor Live Data: A backlight time setting function is available. Able to monitor live data and operating statuses of the controller. On/ off switching, clearing of historical data and restoring to factory settings can all be done with this unit. 5Standard Communication Protocol: Adoption of standard for Modbus communication protocol. Features standard RJ12 as the communication interface. 6Simple Power Supply: With no need of an external power source, connection with a controller by means of a data cable will be enough to enable the unit to be powered. 7Anti Interference: Boasts an industrial grade design and excellent antiinterference capacity, the product can function well in various tough conditions.Item Type: Solar ControllerMaterial: ABSScreen: LED LCD displayPower Consumption: LCD backlight is on (<35mAh/12V); LCD backlight is off (<25mAh/12V)Communication Interface: RS232Baud Rate: 9600BPSWorking Temperature: -35-+65Bluetooth Control: Not supportedProduct Line Length: Approx. 2m/6.56ftWall installationDimensions: Approx. 118.5 x 118.5 x 48mm/4.67 x 4.67 x 1.89inInstallation Size: Approx. 50 x 50mm/1.97 x 1.97in or 70 x 70mm/2.76 x 2.76inInstallation Aperture: Approx. 5mm/0.2inPanel mountDimensions: Approx. 115.82 x 115.82mm/4.56 x 4.56inInstallation Size: Approx. 96mm/3.78in or 103.82 x 103.82mm/4.09 x 4.09inInstallation Aperture: Approx. 3.5mm/0.14inApplicable Scenarios: Solar photovoltaic systems such as home power generation, base stations, RVs, yachts, ships, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Controller1 x Manual1 x Wire12 x Screw6 x ScrewSleeveNoteThe Bluetooth module needs to be purchased additionally, you can contact if you need it.