diff --git a/apps.json b/apps.json
index 7fa521098..a0be4d7e8 100644
--- a/apps.json
+++ b/apps.json
@@ -2109,7 +2109,7 @@
     "name": "Acceleration Recorder",
     "shortName":"Accel Rec",
     "icon": "app.png",
-    "version":"0.01",
+    "version":"0.02",
     "interface": "interface.html",
     "description": "This app puts the Bangle's accelerometer into 100Hz mode and reads 2 seconds worth of data after movement starts. The data can then be exported back to the PC.",
     "tags": "",
diff --git a/apps/accelrec/ChangeLog b/apps/accelrec/ChangeLog
index 5560f00bc..7327ae25f 100644
--- a/apps/accelrec/ChangeLog
+++ b/apps/accelrec/ChangeLog
@@ -1 +1,4 @@
 0.01: New App!
+0.02: Increase record time to 5 second
+      Calculate the time moving in graph display
+      Trigger on 1.04g now, and record 10 samples before trigger
diff --git a/apps/accelrec/app.js b/apps/accelrec/app.js
index 5fb91e2e4..23b265e9e 100644
--- a/apps/accelrec/app.js
+++ b/apps/accelrec/app.js
@@ -1,23 +1,24 @@
 var acc;
 var HZ = 100;
-var SAMPLES = 2*HZ; // 2 seconds
+var SAMPLES = 5*HZ; // 5 seconds
 var SCALE = 5000;
-var THRESH = 1.01;
+var THRESH = 1.04;
 var accelx = new Int16Array(SAMPLES);
 var accely = new Int16Array(SAMPLES); // North
 var accelz = new Int16Array(SAMPLES); // Into clock face
 var accelIdx = 0;
-var lastAccel = undefined;
+var lastAccel;
 function accelHandlerTrigger(a) {"ram"
   if (a.mag*2>THRESH) { // *2 because 8g mode
     tStart = getTime();
     g.drawString("Recording",g.getWidth()/2,g.getHeight()/2,1);
     Bangle.removeListener('accel',accelHandlerTrigger);
     Bangle.on('accel',accelHandlerRecord);
-    if (lastAccel) accelHandlerRecord(lastAccel);
+    lastAccel.forEach(accelHandlerRecord);
     accelHandlerRecord(a);
   }
-  lastAccel = a;
+  if (lastAccel.length>10) lastAccel.shift();
+  lastAccel.push(a);
 }
 function accelHandlerRecord(a) {"ram"
   var i = accelIdx++;
@@ -29,7 +30,8 @@ function accelHandlerRecord(a) {"ram"
 function recordStart() {"ram"
   Bangle.setLCDTimeout(0); // force LCD on
   accelIdx = 0;
-  lastAccel = undefined;
+  lastAccel = [];
+  Bangle.accelWr(0x18,0b01110100); // off, +-8g
   Bangle.accelWr(0x1B,0x03 | 0x40); // 100hz output, ODR/2 filter
   Bangle.accelWr(0x18,0b11110100); // +-8g
   Bangle.setPollInterval(10); // 100hz input
@@ -42,8 +44,9 @@ function recordStart() {"ram"
 
 
 function recordStop() {"ram"
-  console.log("Length:",getTime()-tStart);
+  //console.log("Length:",getTime()-tStart);
   Bangle.setPollInterval(80); // default poll interval
+  Bangle.accelWr(0x18,0b01101100); // off, +-4g
   Bangle.accelWr(0x1B,0x0); // default 12.5hz output
   Bangle.accelWr(0x18,0b11101100); // +-4g
   Bangle.removeListener('accel',accelHandlerRecord);
@@ -76,9 +79,14 @@ function showData() {
 
   // work out stats
   var maxAccel = 0;
+  var tStart = SAMPLES, tEnd = 0;
   var vel = 0, maxVel = 0;
   for (var i=0;i<SAMPLES;i++) {
     var a = accely[i]/SCALE;
+    if (a>0.1) {
+      if (i<tStart) tStart=i;
+      if (i>tEnd) tEnd=i;
+    }
     if (a>maxAccel) maxAccel=a;
     vel += a/HZ;
     if (vel>maxVel) maxVel=vel;
@@ -87,6 +95,7 @@ function showData() {
   g.setFont("6x8").setFontAlign(1,0);
   g.drawString("Max Y Accel: "+maxAccel.toFixed(2)+" g",g.getWidth()-14,g.getHeight()-50);
   g.drawString("Max Y Vel: "+maxVel.toFixed(2)+" m/s",g.getWidth()-14,g.getHeight()-40);
+  g.drawString("Time moving: "+(tEnd-tStart)/HZ,g.getWidth()-14,g.getHeight()-30);
   //console.log("End Velocity "+vel);
   g.setFont("6x8").setFontAlign(0,0,1);
   g.drawString("FINISH",g.getWidth()-4,g.getHeight()/2);