1、Hand held digital signal generator, supports 3 power supply modes, which is more convenient to use. 2、Voltage and current adjustments can be switched by one button, adopt independent wiring, and output can be simultaneously performed. 3、The output has short circuit protection, and power supply has reverse connection protection, which is safe and reliable. 4、With pluggable terminal blocks, it is easy to install, stable in performance and easy to carry around. 5、It supports two modes of coarse and fine adjustment, the number of adjustment turns can be set, simple operation. 6、Equipped with 4‑digit highlight digital tube, supports high‑precision adjustment, and the output can be calibrated. 1 x Signal Generator1 x USB Cable4 x Clip4 x Insulation Clip Cover1 x Screwdriver6 x Terminal1 x Manual Condition: 100% Brand NewItem Type: Voltage Current Signal GeneratorMaterial: ABS3 Power Supply Methods: Charging with mobile phone charger, power bank or external 24V power supplyExternal Power Supply: DC15-30V, Power: 1W (Not Charging)/4W (Charging)Lithium Battery Capacity: 1000mAh, 3.7VMaximum Charging Current: 0.6AExternal: Micro USB- 5V, Current: 0.2A (Not Charging)/1A (Charging)Voltage Output: 0-10V Adjustable, Accuracy after Calibration: 0.05V, Maximum Current: 20mACurrent Output: 0-22mA Adjustable, Accuracy After Calibration: 0.05mA, Current sampling resistance is not more than 500 ohmsDigital Tube Display Digits: 4 digits, two decimal placesEncoder: 20 pulses per turn of the knobPower Supply: Built-in Lithium battery 1000mAHSize: Approx. 100x60x25mm / 3.9x 2.4x 1.0in