Riken Keiki FP-30 HCHO Detector Formaldehyde Gas Detector w/ Tablets

Riken Keiki FP-30 HCHO Detector Formaldehyde Gas Detector w/ Tablets.

Tablets are out of date since 2011, still sealed in unopened bags. Approximately 35 tablets included.

See photos. Powers on.

No batteries included, takes 4x AA batteries.