Pt100 Modbus Rtu

I urgently need a Pt100 Modbus Rtu . Would you please provide me Pt100 Modbus Rtu of different Qualities so I will choose any one of them ? Please provide me a link from where I can buy these online . All of them must be of low cost because I am not much rich ..

I am doing electrical engineering degree from Mumbai university and making final year project report searching for some details. Will you provide basic details about Pt100 Modbus RTU along with details about Pt100 Modbus RTU also provide details about specification about this?

[pawan]

The EX9033-M Analog In 16bit module for RTD excels at use for temperature measurement with a resistance temperature detector. The Analog In 16bit module has 10 Hz sampling rate as well as a built-in open-loop detection. The Analog In RS485 module can be operated in a wide temperature range.

Features:

3 input channels
support all popular resistive thermometer
break-line detection
output as RS485-interface
Communicate via Modbus-RTU
in- and output galvanically isolated
manual configuration or with supplied software
power supply 10 - 30VDC

Supported thermometers:

Pt100 a=0.00385
Pt100 a=0.003916
Pt1000 a=0.00385
Cu100 a=0.00421
Cu100 a=0.00427
Cu1000 a=0.00421
Ni120