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Features:
8 channel multi-function infrared controller, each channel independently trigger and independently delay, do not interfere with each other. 
4 kinds of functional mode: Non-locking (Momentary); Delay(2/10/60/600/3600seconds); Self-locking (Toggle); Inter-locking (Latch). The function mode and delay time are selected by the Solder pad.
Low pulse trigger (Connect to the power-supply GND via the trigger button or low level control via the MCU IO port)  
"Momentary", "Self-locking" ,"Interlock"  and "Delay" four functional modes.

Specifications:
Relay:
 Operating voltage: 5v, 12v (Optional)
 Operating current (dc 12v): standby current 8mA, 1 relay 37mA, 2 relays 66mA, 3 relays 94mA, 4 relays 122MA, 5 relays 150MA, 6 relays 178MA, 7 relays open 206MA, 8 relays 232MA.
 Infrared receiver: VS1838 (Or compatible with IC)
 Infrared remote control: N-E-C coding
 Working distance: 8-15 meters (receiver sensitivity ≥0.5mW / m2)
 Input control port: 5V TTL level ,NPN trigger, 0.2-2 second low pulse
 Relay maximum load capacity: dc 1-110V/5A; AC 85-265V/6A
 Item Size: 99 * 62 * 20mm / 3.9 * 2.44 * 0.79in 
 Item Weight: 116g / 4.09ounces 
Infrared remote control:
 Transmission/coding: N-E-C coding
 IRED: infrared
 Wavelength: 950nm
 Power-supply: dc 3V
 Working voltage: 2.2-3.4V
 Working current: ≥10mA
 Static current: ≥1uA
 Transmit power: 90mW/sr typ.
 Working distance: 8-15 meters (receiver sensitivity ≥0.5mW / m2)
 Frequency: 38 kHz
 Button cell: CR2025 (not included)
 Operating temperature: +55℃ ~ -45℃ 
 Storage temperature: -25℃ ~ +55℃
 Item size: 85 * 40 * 7mm / 3.35 * 1.57 * 0.27in 
 Item weight: 11g / 0.39ounces 
Package size: 120 * 85 * 40mm / 4.72 * 3.35 * 1.57in
Package weight: 130g / 4.58ounces 
Glossary:
NO: Relay normally open contact
COM: Relay common contact
NC: Relay normally closed contact
Relay open: COM connect NO.
Relay close: COM disconnect NO.
Momentary: Press the remote control button (or trigger input port), Relay open, return to Close after 0.5 second;
Self-locking: Press the remote control button (or trigger input port), Relay open, Press again, port Relay close, and so on;
Latched: Enter the Channel 1 Latched command, port 1 Relay open, port 2-8 Relay close. Enter the Channel 2 Latched command , port 2 Relay open, port 1/3-8 Relay close
Delay: Enter the Delay command, Relay open, delay of 2/10/60/600/3600 seconds)after, Relay close;
Note:
1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures.
2.Please allow a little measuring deviation due to manual measurement.

Package List:
1 * Relay
1 * Remote Control