Physical Security

PIR install

by Mark Rowe

A case study of installing of outdoor, wireless passive infrared sensors (PIRs).

The manufacturer OPTEX worked with installer Amron Security at an isolated residential property in the West Midlands. Exposed on all four sides by main roads and fields, the owner was concerned that the property, including detached garages, could be a target for intruders.

Paul Bishop, Contracts Manager and Senior Installer at Amron Security, was at first sceptical when OPTEX proposed using wireless PIRs. He says: “As an installer I feel more comfortable using outdoor sensors only when alarms can be visually verified remotely, as it is far from ideal for false or nuisance alarms to trigger with no possibility for verification. However, I haven’t experienced any false alarm problems with OPTEX’s outdoor PIRs, which have performed flawlessly.”

The PIRs specified by OPTEX include five of its VXI-R and two FTN-R sensors. They are each battery-operated outdoor detectors that wirelessly connect to a Ricochet-enabled alarm panel via OPTEX’s recently launched, pre-configured and pre-connected Ricochet-enabled wireless transmitter, the BGR-01, which is fitted into the back of each sensor. The VXI-R sensors have a 12m wide angle of detection, while the FTN-R sensors provide a shorter – up to 5m – detection range in a curtain-like pattern.

All of the sensors come with OPTEX’s latest analytics programming that includes the makers say small animal tolerance, vegetation detection, and weather protection to avoid false alarms. The sensors are tamper proof and have a battery life of around three years.

Amron security maintains the sensors and provides a remote monitoring service; it is automatically informed if an alarm occurs. Paul adds: “Since the installation in 2016 there has not been a single false alarm. The technology has performed to such a high standard that my PIR concerns have been mitigated and we are specifying OPTEX’s sensors at further sites. My concerns over battery life have also been dispelled, since it is now more than 18 months since the first detectors were installed and they continue to work without interruption.”

Jacques Vaarre, Managing Director of OPTEX Europe, EMEA headquarters, says the sensors are specifically manufactured to reduce false alarms: “The stability of our outdoor PIRs is paramount – and that they are so reliable to change the opinion of industry experts is very encouraging.” Visit http://www.optex-europe.com.

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