Based on what I can see at http://www.oidview.com/mibs/3417/SENSOR-MIB.html, the value you are trying to poll is part of a table.
That means you should probably create a single template using Instance Discovery using .1.3.6.1.4.1.3417.2.1.1.1.1.1.1 as Base SNMP OID, instead of creating two different templates. You could probably also poll 1.3.6.1.4.1.3417.2.1.1.1.1.1.9 as part of your Instance Discovery script to return the name of the sensor for the DCI.

The filter script would look similar to this:

transport = CreateSNMPTransport($node);
if (transport == null) return null;
sensorName = SNMPGetValue(transport, ".1.3.6.1.4.1.3417.2.1.1.1.1.1.9." . $1);
if (sensorName == null) return false;
return %(true,$1,sensorName);

I have no idea if the sensor name will always exist on this device or not. The code above will not create a DCI if a name does not exist. In fact, it will remove it if it can't find a name.

You can then reference the sensor name in your DCI description as {instance-name} and the instance itself in the DCI parameter as {instance}.
The parameter should therefore look like this:

.1.3.6.1.4.1.3417.2.1.1.1.1.1.5.{instance}

The description could be this:

Bluecoat Temperature Sensor ({instance-name})

Cheers