Description:
1. MOTION SENSOR: Wireless welcome doorbell alarm, using sensor to detect motion and send signals to the receiver, with the option of selecting at least one transmitter.
2. MULTIPLE RINGTONES: The receiver adopts a doorbell design, with 22 different ringtones for individual preference, and 8 doorbells for retail business use.
3. WIRELESS DISTANCE: This wireless doorbell can be transmitted from a long distance, with an open space of up to 280 meters, suitable for larger locations or higher floors.
4. MULTIPLE FUNCTIONS: Motion activated sensor ringtone, door alarm, email alert, and added silent strong vibration reminder, which is suitable for private or quiet places.
5. APPLICABLE PLACES: This motion sensor doorbell is suitable for shopping malls, office spaces, factories, hotels, high end clubs, homes, villas, etc., simple and practical.
Specifications:
Item Type: Wireless Doorbell
Model: KS SF20R
Receiver Battery: 3 x 3V AA alkaline battery (not included)
Infrared Detector Battery: 3 x 3V AAA alkaline battery (not included)
Power Supply: 5V Micro USB
Volume: 80-96dB Power Supply
Transmission Reception Frequency: 433.92MHz
Wireless Distance: About 280m / 918.6ft in the open air
Environment Temperature: Receiving Host: -10-60℃; Infrared Detector: -10-33℃
Environment Humidity: