Adjustable DC Regulated Power Supply Digital Display GSM Signal Detection 0-15V 0-2A For Phones Repair Short Circuit Protection  1. Voltage and current continuously are adjustable from zero to rated value. 2. This machine has perfect protection circuit ,auto recovery funcion. 3. Can test voltage, check GSM mobile phone singal . 4. Two different current model can be chose. 5. Voltage and current are displayed on digital LED at the same time. 6. upholds high precision and great stability. Technical Specifications Rated operating conditions Input supply voltage 220V±10% 50Hz Working temperature -10°C~40°C Relative humidity:<90% Storage temperature -20°C~80°C Relative humidity:<80% Storage conditions Relative humidity:<80% Rated output voltage 0~15V Rated output curre Max 2A Rated output power 35W Meter Display resolution 2.5% Ripple Noise ≤1mVRMS No-load loss ≤0.25W 9V power output capability <15MV USB output capability 500Mw Diode testing capabilities: Pathways buzzer Regulators work status Output voltage 0 ~ 15V continuously adjustable between Power stability ≤0.01%±2mV Load stability ≤0.01%±2mV (1mav<1A) I0max>1A Recovery time ≤100us(maximum current≤3A) Steady flow of work status Output current: 0~2A continuously adjustable Power stability ≤0.2%+5mA Load stability ≤0.2%+10mA Packing specifications Weight 2.0kg Inner box size 270mm* 140mm * 220mm