GJD External PIR Sensor Installed In Millhouse Green Chris Boyd2020-06-22T16:04:11+01:00One of today’s jobs was to install an external PIR sensor on a customer’s driveway with an audible tone inside the house to notify them of anybody walking down the drive. (more…) 18th April 2018 By Chris Boyd Blog alarm, CCTV, GJD, nsw, nswuk, Penistone, Security 0 Comments Read more...