Description :
The power supply is a special power supply designed for the maintenance of the mobile phone, OCP over current automatic cut-off alarm, automatic recovery voltage after short circuit is excluded.
GSM signal test.
DC voltage measurement and diode voltage drop measurement, test line short circuit and sound alarm.
Break through the traditional design, can be used in flat, can be used for inclined to use, can be hung on the wall, the user needs to be placed, greatly saving space. Specification :
Input: AC/DC 12V-24V, ±Arbitrarily
(Note: If the input voltage is less than 19V, it's unable to output 15V DC. Input voltage can not exceed 24V, otherwise it may be damaged.)
Output Voltage range: 1-15V DC
Output current: 3A
With USB port 2A 5V and DC port 0.1A 9V output           
Measurement range: 0-50V DC    
Diode output voltage: >3V
Output ripple voltage: <1% VP-P (DC input ripple below 10MV)
Cell phone signal strength test: GSM 900M signal
Dimension: 182*103*39 (D*W*H)     
Weight: 640g
Working Temperature: -20℃ to +40℃
 Package includeds :
1 x 15V 3A DC Power Supply
1 x AC Adaptor
1 x Set of accessories as the picture shown
 Details pictures :