Brj-502 Manual ~upd~ -

Use a dry or slightly damp cloth. Do not immerse the unit in water. Storage: Store in a cool, dry place.

The manual includes a section dedicated to common operational issues: Brj-502 Manual

A: No. The operating temperature range is 0°C to 50°C (32°F to 122°F). It has an IP20 enclosure rating. For outdoor use, install it in a NEMA 4X or IP65 cabinet. Use a dry or slightly damp cloth