PRECAUTIONS :
WARNING : Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user authority to operate the equipment. NOTE : This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction, may cause interference to radio communications. However, there is no guarantee that interference will not occur in a particular installations. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocates the receiving antenna. Connect the equipment into an outlet different from that to which the receiver is needed. Consult the dealer or an experienced radio / TV technician for help. Increase the separation between the equipment and receiver. OPERATION PROCEDURE For Transmitter unit 1) Put a 12V battery (provided) into the battery slot. 2) Use the double-sided adhesive tape to stick on the back side of the unit, then put the unit on your desired position near the door, or just use the wall-mount hole on the back side of the unit, then mount the unit on your desired position near the door. (Avoid putting the unit nears the metal object). 3) LED indicator is on when pressing the button. In case there is no LED indicator, it indicates that the battery is dry and need to replace a new battery. For Receiver unit 1) Put 2 pcs AA size battery into the battery slot (alkaline batteries are recommended). 2) Put the unit at your desired position. 3) LED indicator is on when the transmitter button is pressed. 4) If there is no LED indicator or sound, it indicates that the battery is dry and need to replace a new battery. BATTERY PRECAUTIONS Follow these precautions when using batteries in this device:
1. Use only the size and type of batteries specified. 2. Be sure to follow the correct polarity when installing the batteries as indicated in the battery compartment. Reversed batteries may cause damage to the device. 3. Do not mix different types of batteries together (e.g. Alkaline and Carbon-zinc) or old batteries with fresh ones. 4. If the device is not to be used for a long period of time, remove the batteries to prevent damage or injury from possible battery leakage. 5. Do not try to recharge batteries not intended to be recharged; they can overheat and rupture. (Follow battery manufacturers directions.)