# ThingsBoard IoT Temperature Alert Workflow (n8n Email Automation): n8n workflow

> Started by a clock, and works across Gmail. 4 steps, 1 branch: small enough to read in one sitting and change without fear.

Source: https://millionrounds.com/workflow/thingsboard-iot-temperature-alert-workflow-n8n-email-automat (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# ThingsBoard IoT Temperature Alert Workflow (n8n Email Automation)

Started by a clock, and works across Gmail. 4 steps, 1 branch: small enough to read in one sitting and change without fear.

Small

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fthingsboard-iot-temperature-alert-workflow-n8n-email-automat)

**4 steps** Small: readable in one sitting

**1** Branch: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 1 Logic 1 Service 2

The steps in the order they run, from what starts it.

- 1 **Schedule Trigger** Schedule trigger *Starts it*
- 2 **Fetch Device Telemetry** Things Board *Service*
- 3 **Check Temperature Threshold** If *Logic*
- 4 **Send Alert Email** Gmail *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 4, with 1 branch
- **Size:** Small: readable in one sitting
- **Connects to:** Gmail
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own Gmail account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Not long. At 4 steps it can be read in one sitting and changed without fear.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 4 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fthingsboard-iot-temperature-alert-workflow-n8n-email-automat)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**Automated form response system with Google Sheets and Slack** 4 steps · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-form-response-system-with-google-sheets-and-slack)
- [**BeepMate - Gmail to WhatsApp notifications** 4 steps · Gmail](https://millionrounds.com/workflow/beepmate-gmail-to-whatsapp-notifications)
- [**Monitor API keys and quotas with Apify Datasource Pulse** 4 steps · Apify, Gmail](https://millionrounds.com/workflow/monitor-api-keys-and-quotas-with-apify-datasource-pulse)
- [**Real Estate Listing Auto-Notifications with Gmail** 4 steps · Gmail, Google Sheets](https://millionrounds.com/workflow/real-estate-listing-auto-notifications-with-gmail)
- [**Send client welcome emails and owner alerts with Gmail** 4 steps · Gmail, Telegram](https://millionrounds.com/workflow/send-client-welcome-emails-and-owner-alerts-with-gmail)
- [**Simple error workflow with Gmail and Slack** 4 steps · Gmail, Slack](https://millionrounds.com/workflow/simple-error-workflow-with-gmail-and-slack)