Infrared Sensors

We are looking for a manufacturer of infrared sensors.
WE need prices, MOQ, delivery & payment conditions.
Please note, that infrared sensors should be according to following requirements:
- interchangable Fresnel's lenses for infrared sensors,
- sensor displacement signaling
- tamper switch (cabinet opening)
- sensitivity adjustment
- periodic transmission of control, not less than every 240 minutes
- Battery control signaling a low battery charge and discharge the critical level