Lock Status Monitoring Tutorial

By: Brian Rhodes, Published on Oct 28, 2019

Just because access doors are closed does not mean they are locked.

Unless access systems are using lock status monitoring, the doors and areas they protect could be left insecure. How can you tell when doors are locked?

Lock status monitoring addresses a key vulnerability of many access control systems, but its value is commonly ignored or misunderstood. Inside this note, we explain:

  • How Lock Status Monitoring Prevents Security Risks
  • Why Shut Doors Do Not Mean Secure Doors
  • Tradeoffs Of Door Position vs.or Lock Monitoring
  • Typical Lock Monitoring Cost
  • Examining Latchbolt Monitoring vs Latchbolt Strike Monitoring
  • Explaining Maglock Bond Sensors

The Importance Of Lock Monitoring

'Lock monitoring' checks to see whether an opening's hardware lock is reporting itself as locked.

Because most electrified locks can only secure openings properly when the door is shut, Lock Monitoring essentially notifies access systems that doors are both closed and secured.

Monitoring Against Lock Tampering

Even with sophisticated electronic access locks, door hardware is vulnerable to tampering. Unless the lock hardware itself is monitored as being locked, tampering can defeat their strength and be undetected by the system.

For example, electric strikes can be neutralized by placing foreign objects in the strike so the latchbolt never fully engages, or held in with tape so they never extend at all. The image to the right shows how trash can be used to prevent the latch from extending into the strike to keep a door locked.

And while maglocks generate large amounts of holding force, it works only when the magnet and the armature have full contact.

The rated magnetic holding force drops drastically if their pieces are not allowed to contact each other, even just through covering the surface with tape or paper, dropping the bond from thousands of pounds to just a few hundred, allowing for doors to be easily kicked open.

The image below shows a strap of velcro used to interfere with a maglock's bond so the door can be opened even if the maglock is configured to be locked:

Shut Doors Do Not Mean Secure

**** ******* ****** ***** are ****** **** *** mean **** *** ******.

****** ****** ******* *** using **** ****** **********, the ***** *** ***** they ******* ***** ** left ********. *** *** you **** **** ***** are ******?

**** ****** ********** ********* a *** ************* ** many ****** ******* *******, but *** ***** ** commonly ******* ** *************. Inside **** ****, ** explain:

  • *** **** ****** ********** Prevents ******** *****
  • *** **** ***** ** Not **** ****** *****
  • ********* ** **** ******** vs.or **** **********
  • ******* **** ********** ****
  • ********* ********* ********** ** Latchbolt ****** **********
  • ********** ******* **** *******

The ********** ** **** **********

'**** **********' ****** ** see ******* ** *******'* hardware **** ** ********* itself ** ******.

******* **** *********** ***** can **** ****** ******** properly **** *** **** is ****, **** ********** essentially ******** ****** ******* that ***** *** **** closed *** *******.

Monitoring ******* **** *********

**** **** ************* ********** access *****, **** ******** is ********** ** *********. Unless *** **** ******** itself ** ********* ** being ******, ********* *** defeat ***** ******** *** be ********** ** *** system.

*** *******,******** ********** ** *********** ** placing ******* ******* ** the ****** ** *** latchbolt ***** ***** *******, or **** ** **** tape ** **** ***** extend ** ***. *** image ** *** ***** shows *** ***** *** be **** ** ******* the ***** **** ********* into *** ****** ** keep * **** ******.

*** ********************* ***** ******* ** holding *****, ** ***** only **** *** ****** and *** ******** **** full *******.

*** ***** ******** ******* force ***** *********** ** their ****** *** *** allowed ** ******* **** other, **** **** ******* covering *** ******* **** tape ** *****, ******** the **** **** ********* of ****** ** **** a *** *******, ******** for ***** ** ** easily ****** ****.

*** ***** ***** ***** a ***** ** ****** used ** ********* **** a *******'* **** ** the **** *** ** opened **** ** *** maglock ** ********** ** be ******:

Shut ***** ** *** **** ******

[***************]

*** ***** **** ** that ***** ***** *** otherwise ****** ***** ****** to ** ****** ******, but ** ************* ******** and ******** ** ****** locked ** *******. **** a **** ******** ******** ******** *********** **** **** ****** operators ** * **** is **** ** ****, leaving *** ********** **** 'closed' **** ***** '******'.

*************, **** ******** ** defeat ****** ******** **** from ********, ***** *** convenience *** *** ******, as ***** ** ********** ***** ****** ******* Tutorial. *******, **** ** done ******* ******** **********, tampering **** *** ****** lock *** ***** ****, uncontrolled ***** ******* *** door ** ********* ** outsiders *****.

Door ******** ****** **** *** **** **********

** **** *****, ***** lock ********** ***** ********** more **** **** ******** switches. *** **** ********** ***********, ****** **** ******** Switches ** **** ******** are ********* ** *** 'Door *******' *****, ******* a ****** ******-****** ******* on *** ********** *****.

**** ** ** ******* wiring ******* *** ** HID **********:

*** **** ** ****** a *******-***** **** ******* can **** ** ****** as $* *** ***, and **** * *** minutes ** *******, ********* to ** ****** ******. However, ********** ********** **** monitoring ** *** **** itself *** *** *% - **%, ***** $** or $** ** *** item's ****. *** **** difference *** ******* *** lock ********** ** *** as ******** **** ** Door ******** ********.

** *** ****** *****, the ********** ***** ******* is ********* ** *********** by *** ** *** yellow *** ***** *****:

*** ****** ******* *** these ********** ** *** types ** ***** (**: strikes, ********, ** ******** latches) ** ***** ******* separate **** ***** *****, and ******* ***** ********** unconnected ********* ***** ****** the **** ******** ***********.

Three ****** *****

**** ********** ** ******* deployed ** ***** ****:

  • ********* ********** (***)
  • ********* ****** ********** (****)
  • ******* **** *******

***** *** ***** *** seem ** ** ******* almost *** ****, *** monitoring ******* *** *********** different. *** **** * lock **** ** ****** parts, **** * *******, can ** ********* ** checking *** **** ********. We ******* *** ***** methods *****:

Latchbolt **********

*** *** ** ***** if ***** *** ****** and ***** ******* ******* is ** '********* **********'. In **** ******, * mechanical ** ********* ****** built ****** *** ****** checks ******* ** *** the ****'* ********* ** deadbolt ** ********. ** the ***** ** ******, the *** ******* **. If *** ***** ** not ******, *** **** is ********, *** *** switch ******* ********* ** uncontacted ** *** *****.

****'* ** ***** ******* the ******** ** *** monitoring ****** ****** * lock:

***** ****** ****** ************* this ******* **** *% - **% *** ****, often $** ** $**, and ****** ** ******* requires ********* ******** *****.

Latchbolt ****** **********

******* ****** ** ********** strikes ******** ******** *** internal ******** ********, ** that ********* ******* ** no *** ****** ****** is ******* *** ********* lock *******. *** ********* of **** ** **** they *** **** ******* and **** ***** ** malfunction *** ********, *** they *** *** ** common ** *** ******* on *******.

**** ******* ***** **** as ** ******, **** this ******:

Bond *******

*** **** ****** ****** of ********** ******** ******** a ****** **** ****** the ***** ******** ** the *************** **** ****** the ****. **** *** field ** ********* ** within ****, ** ********** LED ** **** ****** loop ******* *** **** is ****** ******. *** image ***** ***** *** 'green ** ****' *** indicator ** *** *******:

** **** *****, **** sensors *** * ******* option, *** ***** **** adds ** **** ***** they *** ******* ********. However, ***** ******* *** go '***' **** ****, and *** ********* ******** fail **** ******* ***. Periodic *********** ********* * technician ****** *** * replacement ****** ******* * few ******* *** ** needed **** ** ***** in *** **** ** five ***** *** ***** maglocks.

Using **** *** *** **** ********** ********

*** ******* ********, **** installers *** **** **** position *** **** ********** at *** **** **** by ****** *** ******** in ****** **** *** door ******** ******. ******* of ****** ******* * door ** **** ** closed, *** ****** ***** see ** ** **** and *** ****** ** closed *** ******.

**********, **** ********** ******* may ** *** ** separate ******* ********** ******. If ***** **** ** display **** ****** **********, this ****** *** **** be ****** ** *** accurate ******. *** *******, if ***** ******** ****** the *** ****** ** kept ******, ******** ********** from **** *** *** lock ********** ** ********.

Comments (1)

* ***** **** ** have **** ****** ********** at *** **********. *** too **** ** ****** door ******** ******** *** it ** **** ** a ***** *****. ******* adequate ******** ** ****** coverage ** ********* *** is ********* *** ****** it *** ** * nightmare ** ***** ****. So *** ***** **** for ****** ********** ** the ***** *** ***** well ***** ** ** the **** ***.

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

Disruptor Wyze Releases Undisruptive Smartlock on Dec 06, 2019
While Wyze has disrupted the consumer IP camera market with ~$20 cameras, its entrance into smart locks is entirely undisruptive. We have...
Access Startup Multi-Mount Aims To Streamline Reader Installs on Dec 03, 2019
Startup Multi-Mount claims it makes installing access readers 'Fast', 'Secure,' and fit 'any size frame.' The company states its bracket 'fits most...
Directory of Access Reader Manufacturers on Nov 27, 2019
Credential Readers are one of the most visible and noticeable parts of access systems, but installers often stick with only the brand they always...
Vunetrix Health Monitoring Company Profile on Nov 26, 2019
Vunetrix boasts that they make the integrators the 'HERO' by using Vunetrix's monitoring. We spoke to Vunetrix to better understand their...
Top 2020 Trend - AI Analytics on Nov 22, 2019
170+ Integrators answered: What do you think will be the top industry trend in 2020? Why? For the 4th year in a row, AI/video analytics was...
Glass Doors and Access Control Tutorial on Nov 21, 2019
One of the biggest access challenges are locking and securing glass doors. Unlike wood or steel doors that can be modified to work with...
ISC East 2019 Show Report on Nov 21, 2019
IPVM has finished in New York City covering both days of the ISC East 2019 show. Here is a 6+ minute general walkthrough: Inside this report,...
Avigilon H4 Intercom Tested on Nov 20, 2019
Avigilon is well-known for video surveillance and access, but how well does the company's intercom work? We purchased and tested Avigilon's H4...
Top Manufacturers Gaining and Losing 2019 on Nov 18, 2019
2019 has been an explosive year for video surveillance, with the world's two largest manufacturers, Dahua and Hikvision, being sanctioned for human...
Camera Field of View (FoV) Guide on Nov 13, 2019
Field of View (FoV) and Angle of View (AoV), are deceptively complex. At their most basic, they simply describe what the camera can "see" and seem...

Most Recent Industry Reports

IP Camera Installability Shootout 2019 - Avigilon, Axis, Bosch, Dahua, Hanwha, Hikvision, Uniview, Vivotek on Dec 09, 2019
What are the best and worst cameras to install? Which manufacturers make it the hardest or easiest to install their cameras? We tested 35 total...
Viisights Raises $10 Million, Behavior Analytics Company Profile on Dec 09, 2019
Viisights, an Israeli AI analytics startup marketing "Behavioral Understanding Systems", announced $10 million Series A funding. We spoke to...
Disruptor Wyze Releases Undisruptive Smartlock on Dec 06, 2019
While Wyze has disrupted the consumer IP camera market with ~$20 cameras, its entrance into smart locks is entirely undisruptive. We have...
Bosch Budget 3000i Cameras Tested on Dec 05, 2019
Bosch has long had a hole in its lineup for, as it describes, "competitively-priced cameras". Now, Bosch has released its 3000i series cameras...
Anixter Resisting Takeover From Competitor on Dec 05, 2019
Mega distributor Anixter is going to be acquired but by whom? Initially, Anixter planned to go private, being bought by a private equity firm....
Security Sales Course 2020 - Last Chance Save $50 on Dec 05, 2019
This sales course is customized for the current needs and challenges specific to professionals selling video surveillance and access control...
Ireland National Children's Hospital Chooses Hikvision End-to-End With Facial Recognition on Dec 05, 2019
The world's most expensive hospital project ever, the New Children's Hospital in Ireland, has chosen an all-Hikvision surveillance system including...
AVTech ~$70 IP Cameras Tested Vs Dahua and Hikvision on Dec 04, 2019
Taiwanese manufacturer Avtech is taking direct aim at low cost leaders Dahua and Hikvision with ~$70 starlight and white light illuminator...
Ultinous European Analytics Startup Company Profile on Dec 04, 2019
European analytics-startup Ultinous pitches customers to "Have your own video analysis service!" We spoke to Ultinous to better understand their...
Access Startup Multi-Mount Aims To Streamline Reader Installs on Dec 03, 2019
Startup Multi-Mount claims it makes installing access readers 'Fast', 'Secure,' and fit 'any size frame.' The company states its bracket 'fits most...