This is another bullet proof receiver from FlySky sporting their flawless 2.4Ghz AFHDS protocol.  The receiver is compatible with the FlySky FS-ST8.

As with all FlySky receivers, you can bind the receiver to the transmitter and forget as the FlySky radio equipment does NOT suffer from unbinding like other brands.  Buy FlySky and control with confidence.  

FS-SR8 Receiver Specifications:

Product Model:  FS-SR8
PWM Channels: 8
RF: 2.4GHz 
Protocol:  ANT
Range: >1000m(in the air)
Antenna:  Dual  Antenna 
Input Power:  3.5-8.4V 
RSSI: Support
Data Output:  PWM、PPM、i.BUS、s.BUS
BVD Function :Yes, 0-70V
Temperature Range:  -10℃—+60℃ 
Humidity Limit:  20%-95% 
Online Update:  Yes
Dimensions:  44.8*26.6*11.3mm
Weight: 10g
Certification:  CE，FCC ID:2A2UNSR800