Through Authenticate 
| REF No. | Size | Description | Pack Size |
| NCS-511 | Adult | w/2m non-kink tubing, Smarttip head strap | 100 |
| NCS-512 | Child | w/2m non-kink tubing, Smarttip head strap | 100 |
| NCS-513 | Infant | w/2m non-kink tubing, Smarttip head strap | 100 |
| NCS-513N | Neonate | w/2m non-kink tubing, Smarttip head strap | 100 |
