product description:
1. Product Features: Using learning code technology to avoid false alarms
2, the working principle: the person presses the transmitter outside the door, the current is converted into a wireless signal, the signal is transmitted to the receiver, converted into a current, ringing and flashing lights to remind the outsiders.
3. Working frequency: 433.92MHz±0.5MHz
4, 52 and ringtones, 4th volume adjustable volume, and built-in speakers, the sound is crisp and pleasant;
5, remote control distance in the open distance of 300M, can penetrate 2-3 walls and security doors;
6. Standby power is lower than 0.5W, which is convenient for Europe and other places.
7. New ABS flame-retardant shell, precision parts, patch technology, exclusive private mode, touch trigger, mouse-type light point design, more than 100,000 times of service life.
8. Use scenario: Suitable for home, office, hotel, building, dormitory, factory, construction site, villa or any space that needs service.
9. Installation method: The transmitter is opened with a screwdriver, which can be pasted with the double-sided adhesive that is randomly distributed, or the hole is fixed with screws. When the transmitter is disassembled and installed, be careful not to touch the electronic components, and do not invert the up and down direction. The transmitter uses a 12 volt 23A battery and the plastic gasket for insulation is taken out before use. When the signal is not very sensitive to transmitting and receiving, replacing the transmitter battery can solve the problem, and the receiver can be used by plugging it into a regular indoor socket.

specification:
1, product plug specifications: US regulations / European regulations 1 drag 1 - transmitter (remote control) × 1 + receiver (sounder) × 1 (can be more than one, more with one)
2. Remote control power: <10mw
3. Receiver rated voltage: AC 220V 50Hz/60Hz
4. Receiver controllable volume: 20-80dB (four-speed volume, any adjustment, user-friendly design)
5. Receiver standby current: <1.0mA
6. Receiver plug: winning standard plug-in plug
7. Accessories: installation screw package, double-sided adhesive, transmitter built-in 12V 23A alkaline battery 1 section (factory with a normal use for about a year or so general supermarkets are available)