User's Manual
2. Cautions for Treatment
Provisions should be made to protect against any damage to the product caused
by improper handling. The purchaser assumes any responsibility for damage to the
product caused by improper handling.
This RF device operates on the 2.4GHz frequency band and can produce radio
interference. The device, therefore, may not be used for applications where safety
of human lives is concerned.
2.1 Usage Environment
Take extra cautions when using this RF device in the vicinity of other electronic
devices and appliances. Most electronic devices and appliances use
electromagnetic waves. Electromagnetic waves emitted by this RF device can affect
other electronic devices and appliances.
If using the device in an explosion hazard area, follow all safety regulations,
instructions, and signals.
2.2 Storage and Use
- Moisture and liquids can damage internal parts and circuit boards if allowed
to enter into the device itself.
- Do not place or store the product on a sloped surface. The product may
slide and fall off the surface and damaged.
- Use the product in temperatures ranging from +5℃ to +40℃. Parts and
circuits may be damaged if used or stored under temperature extremes.
- Avoid areas with strong magnetism or subject to magnetism.
- Contact between the device and a magnetic object can lead to malfunctions.
- Do not place the product near heat-producing kitchen appliances like a
stove or a microwave or in the vicinity of highly pressurized containers.
- External impact to the product, such as from being dropped, can damage
the product.
- Twisting and bending the product can damage the exterior casing and the
internal components.
- If this product operates abnormally in eliminating battery vinyl or replacing
battery, you should discharge it by contacting battery terminal (+) and (-).
- This product uses 2.4GHz frequency band for wireless communication
network. Radio communications can be limited or affected by other applications
which share same frequency band, such as WiFi, Bluetooth, Zigbee, etc.
- Frequent use of communication can reduce battery life time.




