Find your Halogen sensor by its current or former name.
Older links, manuals and customer studies remain useful. Start with the name on your sensor or document, then confirm the generation and configuration.
| Name on your document | Where to go | What to check |
|---|---|---|
| H2 / MP-Free / MP-5F / MP5F | Current MP-5F chlorine sensor | H2 was the second-generation launch name; MP-Free was an earlier website label. MP5F is also used without the hyphen. |
| MP5 / MP5A / MP5-A | MP5F Free Chlorine guide (formerly MP5A) | Look for D20 + MP5F Free Chlorine (formerly MP5A). Earlier editions remain available in the manuals library. Confirm model and firmware before using a guide. |
| H1 / H2 on a part number or service kit | Manuals and service information | Generation and assembly codes still matter. Do not change an ordering code solely to match a marketing name. |
| MP Total / MP-TOTAL / MP5 Total | MP-TOTAL total chlorine and monochloramine | Confirm species and configuration; this is distinct from MP-5T. |
Current name, original evidence.
Customer evaluations describe the model actually tested. Earlier MP5 results are not presented as new MP-5F trials. Published part numbers and historical document filenames remain unchanged.
What was the MP-5F formerly known as?
The second-generation sensor was introduced as H2 and also appeared on this website as MP-Free. MP-5F is the current free-chlorine product name. Earlier MP5 and MP5A installations have their own documentation and field history; a name change does not establish that parts or specifications are interchangeable.
Where can I find MP5 or MP5A manuals?
The manuals library lists the updated D20 + MP5F Free Chlorine guide (formerly MP5A), currently R1.18 DRAFT, alongside earlier MP5A manuals. Match the model, serial number and firmware to the document edition before service.
Is MP-5T another name for MP-TOTAL?
No. MP-5T is distinct from the existing MP-TOTAL family. Use the MP-TOTAL page for its published total-chlorine and monochloramine information; confirm MP-5T availability and specifications with Halogen.