How to Use: 1. Turn on the power switch, the on position indicator light is on. 2. Rotate the air pressure adjustment knob until the air pressure gauge shows the required air pressure value. 3. Set the mode switch to MAN and AUTO state as needed to work. Specification: Item Type: Semi-Automatic Glue Dispenser Machine Material: Aluminum alloy Model: SPZDJ983A Automatic Timing: 0.01-99.99s Repeat Accuracy: ±0.5% Internal Voltage: DC12V Minimum Drip Volume: 0.0001ml Input Air Pressure: 10-100psi Air Pressure Output: 1-80psi Package List: 1 x Dispenser 2 x Hose 5 x Needle 2 x Syringe 1 x Bracket 1 x Syringe Bracket 2 x Plastic Cover 1 x Pedal 1 x Power Cord 1 x User Manual Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.