Technical Parameter: 1. T-bus warning device characteristic and functions Use with the T-bus smart security system, through the 2.4G wireless network carries on quick Arm, Disarm to the family or the work environment, transmit the signal instruction rapidly and accurately, the design is very exquisite, safe and reliable. 2. T-bus security structure Outer cover, control key, control circuit board, display lamp. 3. T-bus warning device main technical specifications Outlook size: 60*38*15mm Working voltage: DC +12V (+12V dry cell battery) Operating current: 20~25mA Transmitting frequency: 2.400GHz~2.499 Ghz Operating environment : Temperature: -20 degree centigrade ~ +50 degree centigrade Humidity: <= 90%RH Remote control distance: The general non- barrier is away from80 meters, in the room is away from 10 meters, The actual effect is related to wireless transceiver lay aside position as well as concerns with the wall structure. 4. T-bus warning device operation instruction 5. T-bus warning device operation attention matters 5.1. Use environment: In the air must not have the excessive dust, the acid, the alkali, the salt, corrosiveness and the fire damp, relative humidity does not surpass 60% under the maximum temperature 40℃, permission to have a higher relative humidity in comparing the low temperature degree. Should consider to possibly congeal the dew When below +20 ℃and it is 90% because of temperature change; 5.2. If the signal is weak or press the key several times then only have one time respond, please promptly replace the battery (the 12V dry battery); 5.3. Uses the non- complete set of equipment, need to match code to be able to use as the complete set. Functional Characteristic: (Functions) Used together with T-bus smart security system. It can set the home or office to be instant alarm on or alarm off by 2.4G wireless network. (Characteristics) Convenient, its design is portable, which can be carried. The communication directive can be transmitted fast, accurately and safely by the 2.4G wireless network control.