Overview
Description
The FS1027 comprises a MEMS flow sensor mounted on a circuit board with an amplification circuit and a flow housing.
The FS1027 is capable of measuring liquid mediums. The sensor utilizes thermopile sensing, which provides an excellent signal-to-noise ratio and is ideal for applications requiring low power. It is highly sensitive at low flow rates with a very fast response time.
The set of upstream and downstream thermopiles can be used independently in a single-ended circuit or connected in a differential configuration. The upstream and downstream thermopiles are connected to an amplifier with a 0V to 4.5V output.
Features
- Measures liquid mediums
- Robust solid isolation technology
- No cavity in MEMS sensor to cause clogging
- Resistant to vibration and pressure shock
- Low power application
- Fast response time
- 0V to 4.5V output
- Supply voltage: 5VDC
- Operating temperature range: 0 °C to +85 °C
Comparison
Applications
Documentation
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| Type | Title | Date |
| Datasheet | PDF 166 KB | |
| Application Note | PDF 135 KB | |
| End Of Life Notice | PDF 1.07 MB | |
| Product Change Notice | PDF 87 KB | |
| Product Brief | PDF 236 KB | |
5 items
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Design & Development
Support
Support Communities
Support Communities
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FS1027 DG Sensor
Good Day, I am using the FS1027 sensor to measure the flow rate of air. I have connect the I2C communication to an Arduino Nano. It was working fine a couple months ago. I recently plugged it in to check something. I am getting a constant reading of around 50 ...
Oct 24, 2023 -
FS1027-DG Flow Sensor
Dear Community, I am working with the FS1027-DG sensor but I keep getting some strange readings from the analog output. The readings seem to be random, going from 0 to 5V even when there is no air passing inside the sensor. The datasheet says that should be a 0 ...
Nov 10, 2023 -
End of life for FS1027-2001-DL
Hello, The FS1027-2001-DL sensor is now listed as obsolete, and I am looking to know which product is intended to replace it in the lineup. The use case involves flow measurement applications for beverage dispensers (wine, beer, soda), with small, discontinuous flows ranging from 0.1 L/ ...
Jul 15, 2025
FAQs
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FS1027-DL CAD Model
See attached file.
Jun 8, 2021 -
RA Family: Flow Rate Sensor for Coolant System Demonstration
Last Updated:12/04/2020 The below attached project illustrates a coolant system flow rate sensor demonstration using the EK-RA2L1 and FSP. It uses the FS1027 sensor (sensor home page) to the flow for a coolant system. Here is a diagram illustrating the operation: The below attached ...
Dec 4, 2020