Features:
Configuration:
Configuration | SD5 | SD6 |
Infrared transmission | no | yes |
2/3MHz wired probe | yes | no |
2/3MHz wireless probe | no | yes |
Rechargeable battery for the main unit | yes | yes |
Rechargeable battery for the probe | no | yes |
Built in recorder | yes | yes |
Numeric FHR display | yes | yes |
Earphone | Opt | Opt |
Security Lock | Opt | Opt |
Carry bag | Opt | Opt |
Rolling stand | opt | opt |