diff --git a/public/config/trigger.js b/public/config/trigger.js
index 480e024..7942816 100644
--- a/public/config/trigger.js
+++ b/public/config/trigger.js
@@ -7,6 +7,8 @@ const productId = '0487'
 // Make sure the 'open_resting_task' value doesn't conflict with any value sent
 // by any other task, since we use it to uniquely identify this task. It's ok
 // for other values to be re-used in other tasks.
+
+// NOTE - these must match the codes in src/config/trigger.js
 const eventCodes = {
 	'test_connect': 32,
   'open_task': 12,
diff --git a/public/electron.js b/public/electron.js
index ae3d252..5730cf7 100644
--- a/public/electron.js
+++ b/public/electron.js
@@ -16,6 +16,10 @@ const { eventCodes, manufacturer, vendorId, productId } = require('./config/trig
 const { isPort, getPort, sendToPort } = require('event-marker')
 log.info(AT_HOME)
 
+// Override product ID if environment variable set
+const activeProductId = process.env.EVENT_MARKER_PRODUCT_ID || productId
+log.info("Active product ID", activeProductId)
+
 // Data Saving
 const { dataDir } = require('./config/saveData')
 
@@ -80,7 +84,7 @@ let portAvailable
 let SKIP_SENDING_DEV = false
 
 const setUpPort = async () => {
-  p = await getPort(vendorId, productId)
+  p = await getPort(vendorId, activeProductId)
   if (p) {
     triggerPort = p
     portAvailable = true
diff --git a/src/config/trigger.js b/src/config/trigger.js
index 787e8f6..bf35dec 100644
--- a/src/config/trigger.js
+++ b/src/config/trigger.js
@@ -1,8 +1,6 @@
 // Event trigger settings - used in both the react app (renderer) and the electron app (main)
-const manufacturer = 'Teensyduino'
-const vendorId = '16c0'
-const productId = '0483'
 
+// NOTE - these must match the codes in public/config/trigger.js
 const eventCodes = {
 	'test_connect': 32,
   'open_task': 12,
@@ -27,8 +25,5 @@ const eventCodes = {
 
 // this is module.exports isntead of just exports as it is also imported into the electron app
 module.exports = {
-	manufacturer,
-	vendorId,
-	productId,
 	eventCodes
 }