1. Two way intercom, one way call and lock function
 2. Two wire connection
 3. With a new ABS plastic, durable
 4. Excellent consumer side of the tone circuit, intercom voice clarity
 5. Effective distance of 300 meters above intercom
 6. Easy installation easy use
Specification
2wire auido doorphone intercom1. Audio distortion rate of 50mW
 2. Talk time: unlimited, free calls
 3. Input voltage: AC220V 50Hz, Output voltage: DC12V 1200mA
 4. Frequency response: 300 ~ 3400HZ
 5. Working voltage: DC12V
 6. Power consumption: static <0.2W, call status <2W
 
Functions
 • Monitor function: No
 • Listening in protection: Yes
 • Control of electromagnetic lock: Yes
• Function buttons: 2
 • Adding additional function buttons: No
 • Floor call: Optional
 • Turning on the staircase lighting: Optional

 Technical specifications
 • Power: DC 12V ± 10%
 • Operating temperature: From -25 to +70 °C
 • Installation: Surface
 • Dimensions: 201 x 80 x 67 mm
 • Number of wires: 2
 • Wiring: Two-wired cable

 	 			Output sensitivity
 			<60mV(Frequency 1000Hz)
 		
 			Frequency Response
 			+/-3ddB(300Hz-3400Hz)
 		
 			Noise voltage
 			<10mV
 		
 			Ring sound level
 			>70dB(AT 0.5m)
 		
 			Quiescent current
 			<5uA
 		
 			Intercom working current
 			<100mA
 		
 			Input voltage
 			Plug into 110VAC power or insert 4 cells of R6P size AA 1.5V (alkaline) into the cabinet of both the talkback pair.
 		
  
 

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Output sensitivity	<60mV(Frequency 1000Hz)
Frequency Response	+/-3ddB(300Hz-3400Hz)
Noise voltage	<10mV
Ring sound level	>70dB(AT 0.5m)
Quiescent current	<5uA
Intercom working current	<100mA
Input voltage	Plug into 110VAC power or insert 4 cells of R6P size AA 1.5V (alkaline) into the cabinet of both the talkback pair.