diff --git a/lib/sources/librelinkup.js b/lib/sources/librelinkup.js
index e7151bd..42b3b3a 100644
--- a/lib/sources/librelinkup.js
+++ b/lib/sources/librelinkup.js
@@ -155,12 +155,12 @@ function linkUpSource (opts, axios) {
       }
       // var last_glucose_at = new Date(last_known.sgvs.mills);
       var last_glucose_at = last_known.entries;
-      var missing = ((new Date( )).getTime( ) - last_glucose_at.getTime( )) / (1000 * 60 * 5)
+      var missing = ((new Date( )).getTime( ) - last_glucose_at.getTime( )) / (1000 * 60 * opts.linkUpInterval)
       if (missing > 1 && missing < 3) {
         console.log("READJUSTING SHOULD MAKE A DIFFERENCE MISSING", missing);
 
       }
-      var next_due = last_glucose_at.getTime( ) + (Math.ceil(missing) * 1000 * 60 * 5);
+      var next_due = last_glucose_at.getTime( ) + (Math.ceil(missing) * 1000 * 60 * opts.linkUpInterval);
       var buffer_lag = 18000; // 18 second buffer
       var jitter = Math.floor(Math.random( ) * 1000 * 18); // 18 second random
       var align_to = next_due + buffer_lag + jitter;
@@ -200,7 +200,7 @@ function linkUpSource (opts, axios) {
         maxRetries: 2
       },
       // expect new data 5 minutes after last success
-      expected_data_interval_ms: 5 * 60 * 1000,
+      expected_data_interval_ms: opts.linkUpInterval * 60 * 1000,
       backoff: {
         // wait 2.5 minutes * 2^attempt
         interval_ms: 2.5 * 60 * 1000
@@ -220,6 +220,7 @@ linkUpSource.validate = function validate_inputs (input) {
     linkUpUsername: input.linkUpUsername,
     linkUpPassword: input.linkUpPassword,
     linkUpPatientId: input.linkUpPatientId,
+    linkUpInterval: input.linkUpInterval || 5,
     linkUpVersion: input.linkUpVersion || Defaults.Version,
     linkUpProduct: input.linkUpProduct || Defaults.Product,
     baseURL