mixing pir's

[Guest roland]

hi

i have an alarm i am fitting at home which has 4 dsc pir's and i need one extra. my dad has one left over from when he fitted his alarm, but it is a different make. does anyone know if mixing pir's is ok?

thanks in advance

roland

[Guest RICHL]

yeah fine.

[Guest Guest]

that's great, thanks for your help.