User's Manual

5
Battery Caution:
1. Risk of explosion if battery is replaced by incorrect type. You
must need to use the Nickel-Metal Hydride rechargeable
battery.
2. The battery may fail or explode when shorted, overcharged
or charged with incorrect polarity.
3. Do not dispose of in fire and prevent explosion.
Technical support
In an unlikely event that you encounter a problem with
ORtek USB Keypad, please visit the web site
www.ortek.com to contact our supporting group or E-mail
to our technology support engineer
[e-mail]. We will solve your problem as
soon as possible.