CDIA Global Pipeline Pig Tracking, Signaling, and Communications Equipment Company
Onshore • Offshore • Subsea

CD42-T1A Transmitter (8" - 28")

The CD42-T1A is a durable stainless steel transmitter manufactured to exacting tolerances by CDI.  It can be mounted in or on almost any type of pipeline pig and is recommended for pipeline diameters from 8" to 28".

This transmitter is guaranteed to operate for a minimum of 500 hours on 6 AA-Cell batteries. For long offshore commissioning projects where pigs can be in the line for months and years, a pressure switch option is available.

The tiny computer in the CD42-T1A allows you to easily switch between three stock transmission patterns, or if you're tracking a train of pigs the transmitter can be programmed to create any number of unique and easily identifiable patterns.


Whether rented or purchased, the CD42-T1A comes with:


  • • Stainless steel transmitter
  • • Removable Aluminum flange kit
  • • 6 alkaline 1.5V AA-Cell batteries
  • • Spare O-rings
  • • Knurled Hand-Removable Cap
  • • Optionally: Pressure Activation Kit

Line Sizes:

8" - 28"  [203mm - 305mm]

Pressure Activation Kit:

15 - 1,100 PSI  [1 - 76 bar]

Pressure Max:

2,500 PSI [172 bar]


10.19" [258.8mm]


2.00" [50.8mm]

Battery Life:

6) AA-Cell Type
500 Hours STANDARD PULSE (Alkaline, 1.5V)
678 Hours SKIP ONE PULSE (Alkaline, 1.5V)

Programable run times of up to to 12 months on alkaline batteries.
Transmitter may be switched ON/OFF using pipeline pressure when CD42-T1A-SWX is installed.


304 Stainless Steel


45 Feet Open Air


-40 °F to 140 °F
[-40 °C to 60 °C]


Knurled Hand-Removable Cap

Dimensional Drawings


Materials and craftsmanship are warranted for a period of one year.