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| Company | Propper Manufacturing | Propper Manufacturing | Propper Manufacturing |
| Item | Highlight BIO with Red Free Filter | Classic BIO (Cobalt Blue) with Headband Mounted Control | Highlight BIO with Diffuser |
| Price | Inquire | Inquire | Inquire |
| Description | 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. | 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 | It features true stereopsis in pupils, is maintenance free and fully convertible to a spectacle mount system. It has dust sealed optics. | 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 | 199316 | 199229 | 199313 |
| Weight | Inquire | Inquire | Inquire |
| Filters | Red free filter | Cobalt blue | Inquire |
| Pupillary Diameter | 2 mm | Inquire | 2 mm |
| Eyepiece | Inquire | Inquire | Inquire |
| Brightness | Inquire | Inquire | Inquire |
| Illuminator | Inquire | Inquire | Inquire |
| Get quote | Inquire | Inquire | Inquire |