A Temperature Sensor has two service buttons located on the front of the device. The silence button (bell icon) is used to clear the local audible reading alarm and reset the collection period. The check-in button (up arrow) is used to initiate a manual check-in to OneVue.
The silence button has two functions, to clear an audio reading alarm and to reset the Collection Period for the lowest and highest sampled temperature readings.
When a sensor is in a reading alarm state (its last reading is out of range) the sensor emits an audio alert (if enabled) and its red LED flashes.
To stop the the local alarm, press and immediately release the sensor Silence button 
. (bell icon) This clears the audio alert and stops the red LED from flashing, but does not acknowledge the alert in OneVue.
The local alarm resumes once the time period set in the sensor's Resume Audio Alert (default 15 minutes) has been reached. Audio alert settings are configured from a sensor's gateway profile.
A Temperature Sensor displays its current sampled reading and the lowest and highest sampled reading for its current collection period. A sample reading is taken every 15 seconds.
When the collection period is reset, the lowest and highest sampled readings collected are set to start at the time the reset was performed.
How to reset the collection period varies if the sensor is in or not in a reading alarm.
If the sensor is NOT in a reading alarm: for 1 second, press and hold down the Silence button (bell icon). A single beep is emitted when the reset is complete.
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If the sensor IS in a reading alarm (audio alert and/or red LED is flashing): press and quickly release the Silence button (bell icon) to clear the alarm, and then for 1 second press and hold down the Silence button. A single beep is emitted when the reset is complete.
This clears the audio alarm and resets the collection period.
Pressing and quickly releasing the sensor check-in button 
(up arrow) initiates a check-in to OneVue. During each check-in, all logged readings are transmitted to OneVue and any pending updates are downloaded to the sensor.
When the check-in button is pressed and released, the device emits a series of audio beeps indicating its connection sequence. When a device emits the following beep sequence and displays Signal Ok, this indicates a successful check-in.
During an active check-in connection, additional pressing of the check-in button is ignored.
If a check-in fails, commonly due to the sensor cannot establish a network connection, all logged readings are stored in its non-volatile memory. If the number of failed check-ins exceeds the size of the non-volatile memory, the oldest readings are overwritten. Primex sensor devices store up to 4096 readings.