# Criteria for receiving sensor data

The `criteria` object specifies the sensor channel to listen for data.

The `criteria` object has two main properties: `ListeningType` and `ChannelInfoMap`. These are described in the following table.

Table: Criteria object properties
Property | Description | Type | Value
--- | --- | --- | ---
`criteria.ListeningType` | Specifies the type of notification for which to register. This is always `"ChannelData"`. | string | Possible values: `"ChannelData"`
`criteria.ChannelInfoMap` | Specifies the sensor channel to listen for data. Retrieve this object using the `FindSensorChannel` method. For more information about the object, see section Sensor channel information. | object | See section Sensor channel information.