The W8 Series is a melt pressure monitoring system which comes complete with the following items: W3x-6-M-xxxx-1-4-D-000 (oil-filled melt pressure transducer) 40TB-10-RR-R-1-0-1 (1/4 DIN pressure indicator) C08WLS (25 foot 6-pin cable) SF18 (mounting bracket) The W8 Series is an excellent solution for those who wish to have the accuracy and stability of a transducer and digital indicator at a great price.