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What is this please?


Bobba
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Aliens.

Or, as has been already said, air pollution monitor. You can see the temp and humidity measuring coils (lower cylinder) and the top thing is a dust sampling head. Then the big block filter in the middle is for air samples for things like carbon monoxide, Hydrogen Sulphide, Benzene and the likes. I think some of the more sophisticated ones are attached to CCTV cameras, that can pick up individual vehicles' pollution. Spikes in air nasties are registered with passing traffic, so if your lorry's particularly bad, then they're gonna know! I read somewhere that Islington's got that sort I think. 

Edited by chrisjpainter
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On 31 July 2019 at 18:50, chrisjpainter said:

Aliens.

Or, as has been already said, air pollution monitor. You can see the temp and humidity measuring coils (lower cylinder) and the top thing is a dust sampling head. Then the big block filter in the middle is for air samples for things like carbon monoxide, Hydrogen Sulphide, Benzene and the likes. I think some of the more sophisticated ones are attached to CCTV cameras, that can pick up individual vehicles' pollution. Spikes in air nasties are registered with passing traffic, so if your lorry's particularly bad, then they're gonna know! I read somewhere that Islington's got that sort I think. 

Many thanks for this.

Possibly the council seeing how far they can spread their low emission zones. The Mayor is a waste of space so will no doubt claim this as one of his initiatives.

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On 01/08/2019 at 08:03, dead eye alan said:

It's a mess badly fitted and probably unsafe judging by the tape that's holding it together! 😎

just looked at it again....you are right it is a bloody mess....lecky tape jubilee clips.....cable ties........ugh

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