diff --git a/src/peripheral/bleno/characteristic.test.js b/src/peripheral/bleno/characteristic.test.js
index c3867c9..09989c1 100644
--- a/src/peripheral/bleno/characteristic.test.js
+++ b/src/peripheral/bleno/characteristic.test.js
@@ -81,6 +81,8 @@ test('Characteristic.onUnsubscribe', () => {
 test('Characteristic.updateState', () => {
   const characteristic = Characteristic('mockUUID', Parent, util, 'mockDescriptor', { encode, decode });
 
+  characteristic.updateState({ mockState: 'mockState' });
+
   const maxValueSize = 10;
   const updateValueCallback = jest.fn();
   characteristic.onSubscribe(maxValueSize, updateValueCallback);
diff --git a/src/webapp/actions/actions.test.js b/src/webapp/actions/actions.test.js
index fae57de..0e08ed6 100644
--- a/src/webapp/actions/actions.test.js
+++ b/src/webapp/actions/actions.test.js
@@ -10,7 +10,6 @@ beforeEach(() => {
   central = {
     connect: jest.fn().mockReturnValue(Promise.resolve()),
     handler: jest.fn(),
-    read: jest.fn().mockReturnValue(Promise.resolve('mockState')),
     write: jest.fn().mockReturnValue(Promise.resolve()),
   };
 });
diff --git a/src/webapp/central/central.js b/src/webapp/central/central.js
index bad0ab7..b35af3f 100644
--- a/src/webapp/central/central.js
+++ b/src/webapp/central/central.js
@@ -39,13 +39,6 @@ export default function Central(
     return listerner;
   });
 
-  const read = () => {
-    if (state.server && state.server.connected && state.characteristic) {
-      return state.characteristic.readValue().then(data => decode(data));
-    }
-    return Promise.reject(new Error('Bluetooth: Not Connected'));
-  };
-
   const write = (action) => {
     if (!state.server || !state.server.connected || !state.characteristic) return null;
     const stringify = JSON.stringify(action);
@@ -58,7 +51,6 @@ export default function Central(
     connected: state.server && state.server.connected,
     connect,
     handler,
-    read,
     write,
   };
 }
diff --git a/src/webapp/central/central.test.js b/src/webapp/central/central.test.js
index 48d974c..7c11f76 100644
--- a/src/webapp/central/central.test.js
+++ b/src/webapp/central/central.test.js
@@ -73,16 +73,22 @@ test('Central: handler', () => {
   return expect(promise).resolves.toBe(true);
 });
 
-test('Central: read', () => {
-  expect.assertions(2);
+test('Central: handler chunk', () => {
+  const callback = jest.fn();
+  expect.assertions(3);
 
-  const promise = central.connect('mockName').then(() => central.read())
-  .then((data) => {
-    expect(characteristic.readValue).toBeCalled();
-    return data;
+  encoder.decode = jest.fn().mockReturnValue('{"mockDecode":"mockDecode"}');
+  central = new Central(bluetooth, encoder, CENTRAL_CONFIG);
+
+  const promise = central.connect('mockName').then(() => central.handler(callback))
+  .then((listerner) => {
+    expect(characteristic.startNotifications).toBeCalled();
+    listerner({ target: { value: 'mockEvent' } });
+    expect(callback.mock.calls.length).toEqual(0);
+    return true;
   });
 
-  return expect(promise).resolves.toBe('[[[{"mockDecode":"mockDecode"}]]]');
+  return expect(promise).resolves.toBe(true);
 });
 
 test('Central: write', () => {