Liquid flow sensing on a new level: flow rates up to 600 ml/min
With the new SLF3S-4000B high-flow sensor, Sensirion is moving into a new measurement dimension and now covers an extended measurement range from nanoliters to liters per minute. With the same look and feel as the existing SLF3x flow sensor family, the SLF3S-4000B offers several advantages. Users can continue to use existing cables or software for readout without customization, thus eliminating reprogramming processes. The complete liquid flow sensor portfolio benefits users who want to source their sensor technology from one specialist in automation solutions and fluid systems.
| Liquid flow | |||
|---|---|---|---|
| Full scale flow rate (H2O)600ml/min | 600 | ml/min | |
| Accuracy (H2O)5% | 5 | % | |
| Repeatability (H2O)0.5% | 0.5 | % | |
| Full scale flow rate (IPA)600ml/min | 600 | ml/min | |
| 10 |
| % |
| Repeatability (IPA)0.5% | 0.5 | % |
| Maximum operating pressure3bar | 3 | bar |
| Fluidic connector portsBarbed fittings | Barbed fittings |
| Generic | |||
|---|---|---|---|
| Supply voltage3.2 - 3.8V | 3.2 - 3.8 | V | |
| Max. supply current6mA | 6 | mA | |
| InterfacesI²C, RS485 | I²C, RS485 | ||
| Size (LxWxH)48 x 15.5 x 8.6mm | 48 x 15.5 x 8.6 | mm |
Buy the following products to evaluate this sensor
| Name | Description | Series | Category |
|---|---|---|---|
EK-SLF3S-4000B | Liquid flow evaluation kit SLF3S-4000B | SLF3x | Liquid flow sensors |

Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.