# K983500: PRO2 Check Oxygen Indicator

- Pathway: 510(k) (Traditional)
- Applicant: Medical Technology Specialists, Inc.
- Decided: Mar 17, 1999 after 162 days
- Product code: CCL (Analyzer, Gas, Oxygen, Gaseous-Phase)
- Device class: 2
- Regulation: 21 CFR 868.1720
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
4 later devices descend from it; 2 cite it directly.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K072469: Digiflo Concentrator Analyzer (2008), 3 descendants of its own
- K112402: ULTRAMAXO2 Oxygen Analyer (2011), 2 descendants of its own
- K261389: PRO2 Elite Plus Oxygen Analyzer (PRO2PLUS-1) (2026), 0 descendants of its own
- K250002: Smart Check O2 (MA0236) (2025), 0 descendants of its own

Source page: https://510kreport.com/device/K983500
Methodology: https://510kreport.com/methodology