This is the Autostart AS476LCD-ASRF5603BC key fob.

Key Fob Description:
This is an Autostart 6 Button LCD Remote Control
Compatible With These Systems: 
AS-2471TW-FM, Nordic Start NS-2432TW-FM
FCC ID: 
EZSNAH5603
IC ID: 
1513A-NAH5603
Model Number: 
AS476LCD, ASRF5603BC
Compatible Antenna Number: 
FMTW-130
Transmitting Frequency: 
433MHz
Is this a 1 Way Keyfob?: 
No
Is this a 2 Way keyfob?: 
Yes
Battery Type: 
CR2025 x 1
Keyfob Colour: 
Black
LED Colour: 
(LCD Display)

This key fob works with the following antennas: