Sherlotronics high performance long range receiver for wireless security applications. 
 
Features
Long Range Weatherproof Outdoor
1 Channel & 4 Channel available
Code hopping Encryption
Erasing individual remotes
Latch or Momentary
Selectable Momentary times
1 Sec; 3Sec; 1min; 3min; ON/OFF
Buzzer tone
Crystal Controlled +/- 100KHz
Frequencies: 403MHz / 433MHz
12 - 24V AC/DC input
 
Applications
Gate & Garage Door Access Control
Panic Activations
Arming / Disarming Alarm systems
Switching On / Off lights
Switching On / Off Generators
 
RX4-500