Product Description Timer: Programmale: 0.01-1S,0.1-10S,0.2-20S,0.3-30S;Manual mode: Continuous / momentary;Repeat tolerance: ±0.5%;Internal voltage: 24V DC;Minimum deposit: 0.01ml;Air input: 2.5 to 7 bar(35 to 100psi);Air output: 0.41 to 5.5 bar(1 to 78psi) The shell of dispensing machine is made of high-quality aluminium alloy and high-quality plastics. The surface of dispensing machine is made of ion plating technology. It is not easy to rust, firm and durable, skid-proof, scratch-proof, durable, clean and effortless. PTE elastic anti winding material ensures the voltage transmission, strong resistance to pull. Precise control of dispensing drops and dispensing cycle. Suck-back function ensures no leakage drops. Work great for secure the SMD components position before soldering work. Designed for wide range of application: cellphone key-press, printing, switch, connectors, computer, digital products, digital camera, MP3, MP4, electronic toys, horn, buzzer, electronic components, integrated circuit, LCD screen, relays, speaker, LED lamp, chassis bonding, optical lens, mechanical components, seal, etc. Suitable for many different liquids, such as quick-drying glue, red glue, yellow glue, epoxide-resin glue, silica gel, grease, screw locking glue and soldering flux. This unit needs to be connected to air compressor. Attention: According to Amazon rules, you can return within 30 days after you received, but if it is over 30days, we only provide repairing. One year warranty