Siting of Insect-O-Cutor Fly Killers

Placement of electric fly killers is an area that is frequently misunderstood and there are a few simple points to observe. Firstly the height at which fly killers are to be installed is important in terms of efficiency. As a general rule, the higher up they are the less effective. In a working environment the ideal height would be between two and two and a half metres from the ground. At this height the risk of the units being damaged by moving trolleys or forklift trucks is reduced whilst maintaining maximum efficiency. They will also be easier to clean and maintain.

Do not rely on area of coverage of a particular unit as the only criteria for choosing and installing fly killers. There are several factors that need to be considered before deciding on the appropriate number and size of units to be installed. These would include the number of entry points including doors, windows and any other openings, for instance for pipe work or extractor fans. What is the volume of human traffic through the area to be protected? What would be the normal flying insect population? What is being produced? And where is the facility located? If it is close by a lake or a rubbish tip, then there will be a greater risk than if the facility is in the middle of an industrial estate.

Fly killer units should not be installed in areas where they can be affected by air currents. Avoid areas close to air conditioning vents or where draughts may be a problem. This is because flying insects, on the whole, do not like moving air and units placed in these areas may be less efficient.

Fly killer units are often placed directly in front of doorways, the logic of the installer being that this is where the insects enter and so they will be more easily caught. In fact this will only encourage insects to enter and make the problem worse. It is better to install units off to the side of doorways ensuring as much as possible that the light does not shine out of the open door.

Never install fly killers of any description directly above a processing line or food preparation area. The Ultra Violet lamps are highly attractive to flying insects and will attract the insects to those areas. Better to install the units away from sensitive areas, to attract the insects and kill them away from the critical areas to be protected.

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SE44Siting Tips
  1. The ideal location for an electric fly killer is at right angles to the major light source in the room

  2. Avoid siting too high – ideally the base of the unit should be no more than 2 metres from the floor

  3. Avoid siting the units where air currents can blow insects away from the units

  4. Units must not be sited so that the light is obscured (if flying insects cannot see it the unit will not be very effective)

  5. Avoid siting above food preparation areas

  6. Site between potential entry points and production areas to intercept pests before they reach sensitive areas

  7. In areas with a particularly aggressive or wet atmosphere, it is recommended that all stainless steel units are used to prevent premature corrosion

  8. For areas with a glass-free policy, use shatterproof lamps

  9. And finally don't forget to change the lamp every 12 months – preferably just before start of the fly season!


Area of coverage is given as a guide only and other factors including the use of the area and the number of entry points should be taken into account when choosing a particular unit.