Maxbell 2in1 Entry Door Alarm Chime Doorbell Wireless IR Monitor Sensor Detector

Specifications:

• Working Voltage of the Sensor: DC 3V (2 AA batteries are not included)
• Working Voltage of the Transmitter: DC 9V
• Working Range: Up to 100 meters / 328 feet (open field)
• Infrared sensing distance: 3-7 meters
• Music: Classic Single "For Elise"
• Bell Size(L*W*H): Approx. 9*6.5*3.7cm/3.54x2.56x1.46inch 
• Sensor Size(L*W*H): Approx. 9*6*4.5 cm/3.54x2.36x1.77inch
• Receiver Switch Setting: High / low volume / off

Note:

• 1. Avoid installing the sensor to the position facing to air conditioner outlet, exhaust fan vent, electrothermal furnace or heating installation nearby.
• 2. The sensor should be mounted in the height of about 2 meters. Place the sensor at the entrance side or top, and adjust it through the rotatable support, in order to reach the best effect.
• 3. Reduce obstacles and interference from other wireless signals between the sensor and the transmitter. Usually the distance should be about 10 meters when there is a wall between.
• 4. When the LED indicator does not go on, the battery power is either low or dead. At that time you should change the batteries.
• 5. In case of high temperature (above 30), the sensing distance of the detector may be shorten, this could be normal phenomenon.
• 6. Important: please keep the detector & receiver in sheltered places to avoid contact of both units from water and direct sunlight and metal.
• 7. Clean the detector regularly with a damp cloth to avoid blockage of sensor by dirt or any small particles.
• 8. Try to keep it in areas where it will not get wet. In addition, during heavy storms & snowfalls, it is recommended that unit should be moved indoor or in a safe place.
• 9. Never attempt take apart the units.
• 10. When the unit is not in use, take out all batteries; clean both units and store the units in dry, cool place.

Package Includes:

• 1 x Sensor
• 2 x Doorbells
• 1 x Installing Bracket