Features 1、A VARIETY OF PROTECTION FUNCTIONS: Voltage current signal generator output has short circuit protection, power supply has reverse protection, safe and reliable 2、STABLE AND CONVENIENT: Voltage current signal generator adopt pluggable terminal, support easy installation, stable performance, easy to carry 3、3 POWER SUPPLY MODES: Handheld digital signal generator support 3 power supply modes, charging with mobile phone charger, power bank or external 24V can be charged 4、FLEXIBLE AND ADJUSTABLE: The signal generator support one click switching of voltage and current adjustment. Independent cables are used to synchronize output. Support coarse and fine tuning two modes, adjust the number of turns can be set, easy to operate 5、ACCURATE AND EFFICIENT: Analog simulator is equipped with 4 bit high light nixie tube, support high accuracy adjustment, and the output can be calibrated, so you can use with confidence Specification Item Type: Voltage Current Signal Generator Battery Type: 1 x Rechargeable lithium battery 1000mah Power Supply: 3 Power supply methods, charging with mobile phone charger, power bank or external 24V can be charged to work External Power Supply: DC15-30V, Power: 1W(no charge) or 4W(charging) External Micro USB: 5V, Current: 0.2A(no charge) or 0.8A(charge) Voltage Output: ±10V adjustable, Calibrated Accuracy: 0.05V Driving Current: <20mA Current Output: Adjustable from 0-22mA, Accuracy After Calibration: 0.05ma Load Sampling Resistance: < 500ohms Working Environment: 0-40℃, Relative Humidity: <80% Package List 1 x Current Signal Generator 1 x USB Charging Cable 4 x Jack Test Crocodile Clip 4 x Insulated Jack Test Crocodile Clip Cover 1 x Screwdriver 6 x Terminal 1 x User Manual