Casio DT-300M60E User Manual page 20

Specifications
8. Operating Environment
Temperature:
Humidity:
Dust and Water splash proof:
Drop durability:
9. Miscellaneous
Clock Function:
E-22
-5 to 50C°
30% to 80% RH
IP54
150 cm
Fully automated calendar, with year, month, day, hour, minute and
leap year