Model Number     DF2250FX Unit Dimensions     7” x 2” x 2” (177 x 50 x 50 mm) Unit Weight     10 oz (.3 kg) Display Type     Polarized LCD Display Window Size     1.6” x .75” (40.64 x 19.05 mm) LCD Backlighting     Silver-Screen Flashlight Bulb     High Output Xenon Accuracy      +/- 5% Temperature Readout     14 to 122 F (-10 to 50 C) Depth Reading Range Max     199 Ft (60 M) Depth Reading Range Min     2.5 Ft (.7 M) Depth Readout Increments     .1 Ft/M Power Requirement     4 x ‘AA’ Batteries (not included) Units of Measure     Ft, M / F, C Waterproof Rating     IPX 8 (continuous submersion) Waterproof Limit     250 Ft (76 M) Operational Temp. Range     0 to 122 F (-18 to 50 C) Warranty     2 Years