• 

  Vem Motors W21R 280 S8

• 

  Vem Motors W21R 315 S8

• 

  Vem Motors W21R 90 S 8

• 

  Sontheimer. WAB911/32E /Z21/33S

• 

  Schmersal WSN21S1

• 

  Schmersal WSN21S12

• 

  Schmersal WSN21S1B

• 

  Ytc YT-520S21

• 

  Yokogawa ZO21S-5-J*A

• 

  Schmersal ZSS21S1