Change a DT1H to Metric

Switching the Readings from English to Metric is a quick and easy process:

1. Turn the unit on by sliding the switch towards the battery
compartment and releasing.
2. Slide the switch towards the battery compartment and
hold for 5 seconds.
3. The current units of measure will blink, release the
switch.
4. Pull and release the switch to change between the
settings (FT/F, M/C)
5. The unit will automatically exit the units of measure
setting and return to the last mode (depth or temp) if the
switch is not moved for 10 seconds.