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| Company | Propper Manufacturing | Propper Manufacturing |
| Item | Classic BIO (Cobalt Blue) with Headband Mounted Control | Highlight BIO with Red Free Filter |
| Price | Inquire | Inquire |
| Description | It is a BIO (Cobalt blue) with headband mounted control. | It offers headband mounted illumination control for easy access and adjustable interpupillary distance 49 - 74mm. The extra filters, small pupil accessory and power source can be bought separately. |
| Features | Classic BIO (Cobalt blue) includes an AC adapter. | It features true stereopsis in pupils, is maintenance free and fully convertible to a spectacle mount system. It has dust sealed optics. |
| Product Number | 199229 | 199316 |
| Weight | Inquire | Inquire |
| Filters | Cobalt blue | Red free filter |
| Pupillary Diameter | Inquire | 2 mm |
| Eyepiece | Inquire | Inquire |
| Brightness | Inquire | Inquire |
| Illuminator | Inquire | Inquire |
| Get quote | Inquire | Inquire |