Welcome to our store! 1. Clear Display: This signal generator features a bright and clear 4-digit high-resolution digital tube, which can be used to monitor output current and voltage. 2. Excellent Design: The signal generator is equipped with aluminum knobs, electroplated buttons, excellent diaphragms, charging indicators, and battery switches. 3. High Practicality: In the common interface, save a voltage and current value, click the encoder to save, and release the OK button to save successfully. The saved values are displayed directly after restarting, so you don't need to adjust parameters every time you turn on the machine, which is very convenient. 4. Wide Application: This voltage and current signal generator is the most commonly used electrical testing instrument for electricians to install, debug, inspect, and maintain electrical equipment on-site. 5. Easy to Carry: The signal generator is small in size and easy to carry, making it the best choice for on-site troubleshooting. Item Type: Signal Generator Material: ABS Model: SG002 Purpose: Signal Generator Color: Black Voltage Output: -12V to +12V Current Output: 0 to 24mA Built-in Battery: 3.7V 1100mAh Lithium Battery (Comes with built-in battery) Package List: 1 x Signal Generator Customer satisfaction is our top priority. If you notice any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.