Tech Tips: Alarm Testing

  • October 21, 2020, 12:56 pm

It has recently been pointed out to me that ‘fault finding’ is becoming a lost art, especially when it comes to motion sensors. With this in mind here is a list of pointers that we...

Tech Tips: Volts, Power… Resistance Etc?

  • October 21, 2020, 11:44 am

I often get asked about the relationship between Volts, Amps, Ohms and Power so this week I thought I would cover just that. This relationship is defined by ohms law.   The symbols and abbreviations...

Tech Tips: What Size Power Supply?

  • October 21, 2020, 10:58 am

One of the more common questions I get asked is what size power supply is needed for.   Below is a list of common items and their approximate power requirements at 12v DC:-   ***...

Tech Tips: Electric Strikes & What Are The Options

  • October 21, 2020, 8:57 am

I have noticed recently a lot of confusion in relation to electric strikes, specifically which strike is needed for a specific application. This week I will discuss many of the options on electric strikes, and...

Tech Tips: How To Make A Latching Relay?

  • October 15, 2020, 4:08 pm

Last week I was asked by an experienced alarm tech on how he could get a door alarm to stay on until reset if a fire door was opened. He had thought about various modules...

Tech Tips: Routine Servicing CCTV

  • October 15, 2020, 3:51 pm

As a follow up to the recent Tech Tip on what is required for a routine maintenance on an access control system I have been asked about the same thing for a CCTV system. As...

Tech Tips: Record Keeping… It is important!

  • October 15, 2020, 8:42 am

Once again we have had an instance of cards being duplicated. Some proximity cards were ordered from us with a specified site code and number range. When the tech went to the site to enrol,...

Tech Tips: Intercoms… Doing It Right By Design

  • October 14, 2020, 4:13 pm

In general, domestic intercom installs are very easy; provided some basic rules are followed.   Before you start cabling you must know what you are going to install. This is because different systems use a...