Upgrade the multifunctional mini handheld digital signal generator. Featuring a high-grade aluminum alloy knob and an ultra-thin frosted non-slip shell, this lightweight and portable device is ideal for PLC and panel debugging, continuous speed regulation of servo motors in forward and reverse directions, equipment testing, and frequency converter applications. The signal generator provides a voltage output range of -10V to +10V with 0.01V accuracy, enabling precise forward and reverse debugging. It also offers a current output range of 0-22mA with 0.01mA accuracy; a 5% error tolerance can be calibrated. Equipped with a built-in 3.7V 1000mAh lithium battery, the device is convenient to use and includes a power indicator. This analog generator is a full-featured, highly practical, and cost-effective handheld function generator designed for professionals in maintenance and industrial fields. It supports one-key switching between voltage and current output, allows simultaneous output, and features short-circuit protection and reverse connection protection. The output value is stored when powered off. After use, press the knob to save the setting; upon next power-on, the device will recall the last manually stored value, ensuring ease of use and consistent performance. Material: Aluminum alloy Color: Random Note: Color is randomly selected and cannot be specified. Package Contents: 1 set x Signal Generator Note: Other items not included. Lighting and display differences may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance is +/- 1-3cm.