Wireless sensor switch for air con units

Hi does any body no where I can buy a wireless switch or make to switch indoor air con units off when no one is in the room we have tried a couple of makes but had no luck

Why not use a PIR sensor with built in timer overrun?

http://www.conrad-uk.com/ce/en/overv...ionPIR-sensors

Thanks Frank we have a look tried a few does not work I look at site

daikin wall mounts have an i see sensor-that alters the setpoint by 2 deg for economy mode after 30 mins

Daikin and panasonic have these new energy sensors need to use for older units

any pir sensor rated for over 3 amp
but if the system has a condensate pump make sure the pump is wired before the pir to enable running if needed

There no pumps on these where would get a pir and how do I set this up to the air con indoor unit as we want it to cut off after 15mins when no One in room

www.ecosense.uk.com

Try this company. Haven't installed any yet, but looks perfect.

Regards, Graham