A FAULTY security device, which let off smoke, caused chaos in Grantham High Street on Friday morning when four fire crews and police were called to the scene.
It is not known what activated the device, which is known as a SmokeCloak, just before 8am.
It filled the flat above the Phones 4U store with a smoke-like fog leading to a call from a concerned member of the public.
The device is designed to release a dense fog within seconds of the sensor being activated.
The machine then continues to produce the ‘smoke’ until it is turned off. It is intended to immediately block the vision of an intruder.
However, in this case the authorities found no sign of a break-in.
The pavement and one lane of the road at the junction of the High Street, Avenue Road and St Peter’s Hill were closed while the firefighters smashed through the window of the building to investigate the cause of the incident.
It cost an estimated £400 for the fire crews to attend the scene and investigate the cause.
Lincolnshire Fire and Rescue were called out to 2,222 false alarms between April 2011 and April this year.
Out of those 1,364 were caused by alarms sounding by mistake. This includes malfunctioning devices or issues like people smoking nearby.
The remainder of the false alarms include 796 good intentioned people believing there was a fire and 62 malicious calls.
It is estimated that each call costs around £200 per hour. During this incident the fire crews were at the scene for just under two hours.
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