# K963669: Grass Model 15 Neurodata Amplifier System

- Pathway: 510(k) (Traditional)
- Applicant: Astro-Med, Inc.
- Decided: Dec 12, 1996 after 90 days
- Product code: GWL (Amplifier, Physiological Signal)
- Device class: 2
- Regulation: 21 CFR 882.1835
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) Grass Model P511 amplifier: named in the summary without a submission number
- (no number) Melville Diagnostics MMC Series amplifier systems: named in the summary without a submission number

Source page: https://510kreport.com/device/K963669
Methodology: https://510kreport.com/methodology