The moisture meter can quickly measure the moisture content of the grain. 1. Customized Knobs: The keyboard is designed with knobs that can be pressed as a custom button, so users can set the most suitable hotkeys according to their own habits and needs. 2. Red switch: the mechanical keyboard adopts red mechanical keyboard with switch, ergonomic shape, which makes the strength and stroke of the keyboard keys very scientific, light pressing can complete the operation. 3. Improve work efficiency: By adjusting the hotkeys, users can perform many complex operations in a short time, which not only saves time, but also reduces the occurrence of errors. 4. Supports operating system: custom keyboard can be used on many operating systems, Windows, Vista, Linux, OS X. 5. Plug and Play: One-handed macro keyboard is plug and play, no driver required, acrylic material, durable and can be used for a long time. . 3-KEY MINI KEYBOARD WITH USB KNOB . 3-KEY MINI KEYBOARD WITH USB KNOB . 3-KEY MINI KEYBOARD WITH USB KNOB Specification: Item Type: Macro Keyboard Material: acrylic Connection: USB wired Key type: mechanical keyboard with red switch (the knob can be pressed as a custom key) Supports operating system: for Windows, Vista, Linux, OS X . 3-KEY MINI KEYBOARD WITH USB KNOB . 3-KEY MINI KEYBOARD WITH USB KNOB . 3-KEY MINI KEYBOARD WITH USB KNOB List of packages: 1 x Keyboard 1 x Data Cable plug and play . 3-KEY MINI KEYBOARD WITH USB KNOB . 3-KEY MINI KEYBOARD WITH USB KNOB . 3-KEY MINI KEYBOARD WITH USB KNOB