---
title: "Low"
canonical: "https://help.innovyze.com/space/info360/15007996/Low"
format: markdown
---
Outputs the lowest value within a given sampling interval.

For example, if a sensor gives raw data every 5 minutes, but an hourly sampling interval is applied to a chart, Low() will give the lowest raw data point reported over the previous hour.

Specifically, the Low() reported value at 2:00, is the minimum raw sensor value reported between 1:01 and 2:00.

|  |  |
| --- | --- |
| **Parameter** | **Description** |
| Sensor ID | The unique ID of the sensor data to be used in the function.<br>> ❌ **Warning:**
> ❌ 
> ❌ This function must be run directly on raw sensor data. An internal function cannot be used (e.g. High(Previous(4))), as this does not pass all the required information |

### Example Usage as an Expression:

Low('PRV1-2B.PRV Flow Rate'): Finds Low value for sensor PRV1-2B.PRV Flow Rate

### Examples Reference Chart:

The following example shows various reports of daily tank levels overlaid on an [Candlestick Chart](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15007771). The [Open](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15008030) and [Close](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15007977) value indicate whether the tank experienced a net filling or draining through the day, while [High](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15008009) and [Low](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15007996) show the range of values that day. The [Average](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15007973) value shows the central tendency.

![image](media://7ca5733f-3d58-480d-9525-d42954d4f552)


For information on setting up custom equations and syntax, please refer to [Analytical Functions](https://help-innovyze.atlassian.net/wiki/spaces/info360/pages/15007825).