Here is a top-of-the-line PIR that is one of the best we have sold.  It features Automatic  Temperature Compensation to increase catch performance in warm temperature and reduce false alarms in cold temperatures.
Other features include;
*  White Light Protection: Pigmented lenses provide protection against white light.
* High Immunity to RFI & EMI: Eliminates false alarms caused by cellular phones and electrical interference.
* LED Selector: Operates with LED on or off.
* Quality Control: Each unit is subjected to individual automatic computerised testing sequences in which robotics simulate human motion in 3 different speeds. results are permanently recorded to ensure optimum operation.
* Adjustable Pulse Count: 1 or 3 pulses for PIR to trigger.
* Choice of Lenses:
Supplied with wide angle lens. Long range lens and Pet Alley lens available

Specifications:
* Current consumption: 7mA @ 12V DC
* Voltage requirements: 9 - 16V DC regulated
* Alarm contacts: N/C, 24VDC, 100mA
* Anti tamper contacts: N/C 24VDC, 0.5A
* View angle: 110°
* Size: 77Lx66Wx39Hmm
* Operating temperature: - 10°C to 50°C
* Mounting bracket included.

Lens
* Pigmented Fresnel