This is the Autostart AS525OW-ASRF1501FBK key fob.

Key Fob Description:
This is an Autostart 5 Button 1-Way Remote Control.
Compatible With These Systems: 
AS-2471TW, AS-6870TW, AS-2371TW, Nordic Start NS-2432TW, Nordic Start NS-5070TW
FCC ID: 
EZSNAH1501
IC ID: 
1513A-NAH1501
Model Number: 
AS525OW-ASRF1501BK, NS425OW
Compatible Antenna Number: 
FMTW-130
Transmitting Frequency: 
433 MHz
Is this a 1 Way Keyfob?: 
Yes
Is this a 2 Way keyfob?: 
No
Battery Type: 
CR2025 X 2
Keyfob Colour: 
Black
LED Colour: 
Blue

This key fob works with the following antennas: