Features: Automatically identify the controller and display the type, model and related parameter data. Large-screen multi-function LCD displays all operational data and system working status in digital, graphic and text form. With six navigation function keys, the operation is intuitive, convenient and fast. Can complete real-time data monitoring, remote load switching, device parameters, charging control parameters, load control parameter data browsing and modification operations of the connected controller. Load working mode setting can be made through the instrument head: manual, pure light control, light control + delay, timing. Real-time display and voice alarm of connected device fault information. Longer communication distance based on RS485. Specification: Model:LCD Meter MT50 Cord Length:2m Fitment: Fit for ETracer series Fit for Tracer-AN series Fit for Itracer series Fit for Tracer-BN series Fit for LS-B series Fit for TRIRON series Weight: 356 g / 12.56 oz(approx.) Package List: 1 x MT50 Meter 1 x Cord 4 x Long Screw 4 x Short Screw 4 x Plastic Gasket 4 x Screw Gum Cover 1 x English Users Manual .