Epson 503c - Manual (Page 97)

Appendix C: Technical Specifications 91
Environmental
Temperature Operating: 41 to 95 °F (5 to 35 °C)
Storage: 14 to 140 °F (–10 to 60 °C)
Humidity Operating: 20 to 80% RH,
non-condensing
Storage: 10 to 90% RH,
non-condensing
Safety
United States FCC Part 15B Class B
UL1950 Rev. 3
Canada DOC ICES003 Class B
CSA C22.2 No. 950 Rev. 3
CE Marking Directive 89/336/EEC, 92/31/EEC
EN 60950