Features:
You can change the flow rate by changing the tube size
Tube Size: 3.0x5.0mm (Internal x External Diameter)
The Control range of the Flow Rate is 10% -100%

Specifications:
Pump tube: Internal diameter: 3.0mm, Outside diameter: 5.0mm
Flow rate: 19-100ml/min
Working Temperature: 0-40°
Relative Humidity: ＜80%
Volatge: 12V
AC/DC Adapter:
Input: 100-240V AC, 50/60Hz, 0.3A
Output: 12V 1A
Pump Size: 10x6.7x5cm / 3.94x2.64x1.97"
Power Adapter Cable Length: 90cm/35.42"
Quantity: 1 Set

Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package Includes:
1 x Dosing Pump
1 x Power Adapter

1 x Extend Silicone Tube 2 meters
1 x Universal Power Adapter Socket