Wireless Remote Temperature Indication system

Dear All,

I am working in a refinery which mainly produces gasoline, kerosine, diesel, jet fuels, etc. ,

and looking for Wireless Remote Temperature Indication system to be installed for our motors.

Need to have a temperature sensor installed on the bearing housing of None Driving End & Driving End.

This temperature sensor could be infra red type device, or any suitable device,

mounted on the surface of the bearing housing.

Those two sensors per motor should transmit the temperature back to a nearby substation.

The distance between each motor and the substation varies between 50 meters 200 meters.

The motors are located in Class I, Div. 2 area classification.

So, the sensor and its associated gadgets should be suitable for such application.

Off course, each motor will be surrounded by pipelines, steel structure, beams, etc. .

Clear line of sight is not expected.

In the substation, we should have the unit data controller.

Those unit data controllers should be communicating with the main data collector and logger located in the

Central Control Room.

Communications link between Central Control Room and substations could be via wires or wireless.

The data collector & logger should have the features to indicate alarms, trend, print alarms, etc. .

Your feed back & recommendation will be appreciated.