Features Electrical Test Equipment: This current voltage signal generator is the most common electrical test equipment used by electrical engineers for installation, commissioning, overhaul and maintenance of electrical equipment on site. Wiring Safety: The generator has pluggable terminals and a current output of 0 to 24mA, making wiring safe and convenient. Multiple 4 Digit Display: The signal generator has a 4 digit HD digital tube with evenly adjustable display brightness (1 to 8 levels of brightness). Rechargeable: The signal generator is rechargeable via the MicroUSB universal interface and can be connected to mobile power supplies, chargers, computer USB ports, etc. Operation Setting: This signal generator saves a voltage and current value in the normal operation interface, click on the encoder to save, release the OK button and the screen will display ... to indicate a successful save. The saved value is displayed Feature: 1. Easy To Carry: The signal generator is easy to carry and small in size, making it the best choice for on site commissioning. Specification: Item Type: Signal Generator Material: ABS Model: SG002 Colour: Black Voltage Output: -12V to +12V Current Output: 0 to 24mA Adaptable Battery: 3.7V lithium battery (Not included) Package List:1 x Signal Generator Package List 1 x Signal Generator