EDIT tried jul21_PSI_may15 28/06/2021 17:38 Page 1
TRIED & TESTED
TRIED & TESTED Here is an overview of some of the products we have featured in PSI independent test reports. This month we highlight a range of systems listed in no particular order. As always, manufacturers and distributors have no input in the test reports or results Western Digital – Purple 18TB HDD The Purple range of hard drives is designed for surveillance applications with a variety of capacities from 1TB up to 18TB. They are designed for 24-hour, all-yearround operation with an emphasis on continuous write-cycle time. The drive is said to support up to 64 HD cameras and is optimised for AI based read / write requirements with an additional 32 AI streams. Review: A very high-capacity drive with fast read & write access and multiple features to improve the storage and robustness of multi-camera surveillance recordings, especially where complex analytics and Deep Learning are utilised.
Ajax – Wireless Alarm System The Ajax alarm system is a wireless based EN50131 Grade 2 range of components that can be mixed and matched to suit a variety of home and office environments. Components are available in white or black finish to suit the décor of the site. Smartphone setup, management and monitoring along with extended battery life mean that the system is easy to install and use. Review: A wide range of detectors and simple set-up process makes for a potentially very quick installation. Good access to diagnostic information for monitoring purposes coupled with relatively straightforward battery changing.
Optex – BXS-AM Detector This is a wall or pole mountable IP55 outdoor “curtain” PIR intrusion detector that has dual narrow passive infrared detection zones either side of the device. Intended for example to cover side walls of buildings in order to trigger an alarm when people approach too close to the property. These side zones have a range of up to 12 metres, giving a coverage of up to 24 metres in total. Review: A very straightforward alarm device with clear operation and simple set-up. Apart from the reservations regarding cable entry and security of access the unit performs well and should prove easy to install.
Raytec – VAR2-IPPOE-HY8-1 This illuminator is a hybrid design providing both Infrared and White light illumination from one network controlled device. The Infrared wavelength is centred on 850nm and a 940nm version is available on request. Power is by 4-Pair PoE or optionally through a separate 24v DC supply. Review: The white light allowed extremely good colour reproduction and did not excessively flare on near objects even at the 100% output level. Similarly, the infrared had good even illumination over distance and allowed a good contrast range for subjects. Extremely versatile.
52
www.psimagazine.co.uk
