• 

  Tekscan TEK/A301-100/4er

• 

  Tekscan TEK/A401-25lb/ 4-er

• 

  OMEGA DP41Z-E-R4

• 

  Valpes ER60.950R-4

• 

  MA-VIB ER4PSA40V 01J 3 PN

• 

  NU.ER.T. PR 4 AZ

• 

  Mindman MVSE-500-4ER2

• 

  Leach International - Esterline M550-D4N-ER

• 

  VARGUS P/N: 021-59486 Type: 4ER4.0TRVTX

• 

  VARGUS P/N: 021-59359 Type: 4ER5.0TRVTX