Black is beautiful and generous output signal: The voltage adjustable range is increased from -10V to +10V, which is suitable for more debugging fields Software features: Increase the shortcut output mode to facilitate rapid production testing Material: ABS Color as shown Package Contents: 1 x signal generator kit Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. The upper and lower covers are tightly seamed Terminals: Frosted , not easy to produce scratches High-quality environmentally friendly copper slotted screws, not easy to Ultra-thin, non-, comfortable to the touch