Revex XPN780 LCD Screen Sensor Chime Set

When the LCD is on, it will notify you from a distance with "sound" and "light". To install, simply stick the sensor to the LCD display. You can install the LCD sensor transmitter in your living room or kitchen with loud ambient noise. Also compatible with the LED that can be used to attach the smartphone screen or sensor. For those who are unaware of the call of the TV door phone

• Size (approx.): Transmitter: 5.9 x 1.3 x 0.7 inches (150 x 34 x 18 mm), 2.0 oz (53 g), Receiver: 3.5 x 3.6 x 1.3 inches (
• Material: ABS resin; Country of Origin: China
• Power Supply: Transmitter: DC 6 V (2 x AAA alkaline batteries sold separately); Dedicated AC adapter XO505 XO505B (sold separately); Receiver: DC 4.5 V (3 AA alkaline batteries sold separately); or Dedicated AC adapter XO505 XO505B (sold separately); Battery out: Transmitter lamp flashes red, Receiver: Receiver Battery Out Lamp will flash red and the transmitter has a dead battery lamp flashes green
• Transmitter and Reception Frequency: Transmitter: 315 MHz band; Receiver: 315 MHz band; Receives only the same ID code set; Receiver volume: 8 levels; Variable volume: 48 dB - 90 dB (approx.): 3.3 ft (1 m)
• Usable Area: For indoor use only; Operating Temperature Range: Transmitter / Receiver: -14°F to +113°F (-10°C to 45°C)