set interval time Sinotrack st-901

Hi,
does anyone know how to set the time interval in gprs mode of Sinotrack st-901?
Thanks a lot!

I do not have the tracker but a simple Google search revealed.

http://5.imimg.com/data5/JD/MH/PN/ANDROID-26795153/st-901-user-manual-2-pdf.pdf

17 Set the time interval
ACC on time interval (default is 20 seconds)
Command: 805+password+Blank+T
Sample: 8050000 20
Reply: SET OK
T means the time interval, the unit is second,
It from 0 to 18000 seconds,
When T=0 means close GPRS.

Thanks a lot,
i tried it and it works great.
thx

Great, im glad it helped. And thank you for letting know the result.