Installation

Prerequisites

• Node-RED 2.0.0 or later
• Node.js 12.0.0 or later
• Access to the machine running Node-RED, or to its palette manager

Via the palette manager (recommended)

1. Open the Node-RED editor
2. Menu → Manage palette → Install tab
3. Search for node-red-contrib-timer-threshold
4. Click Install

The node appears in the function category as Timer Threshold.

Via npm

From your Node-RED user directory (typically ~/.node-red):

npm install node-red-contrib-timer-threshold

Then restart Node-RED.

Verifying the install

Drag a Timer Threshold node onto a flow, wire an inject node to its input and a debug node to output 1 (Trigger), and deploy. With the default configuration (3 messages within 15 minutes, fixed window), clicking the inject button three times should show the count climbing in the node's status label and fire the Trigger on the third click.

Better still, import a ready-made flow: Import → Examples → node-red-contrib-timer-threshold lists four packaged example flows. Start with basic-usage — it is walked through step by step on Examples: Basic Usage.

Upgrading

Upgrade through the palette manager, or from the user directory:

npm update node-red-contrib-timer-threshold

Behavioral changes between versions, if any, are documented only in Release Notes.

One upgrade-related note: if you use the Resume on deploy/restart option, the node stores state files in a timerthreshold-timers subdirectory of your Node-RED user directory. These files are managed entirely by the node — created, updated, and removed as needed — and survive upgrades. Details in Persistence.