---
title: "Marcela John (@marcelajohn) | Hashnode"
description: "24/7 Live CCTV Monitoring to Prevent Theft, Boost Safety & Improve Efficiency. Read the latest articles by Marcela John on Hashnode."
url: "https://hashnode.com/@marcelajohn"
---

@marcelajohn

# Marcela John

@marcelajohn · Joined August 2025

24/7 Live CCTV Monitoring to Prevent Theft, Boost Safety & Improve Efficiency

### [What is a Digital Video Recorder (DVR)?](https://gcctvms.hashnode.dev/what-is-a-digital-video-recorder-dvr?utm_source=hashnode&utm_medium=feed)

What is a DVR? Simple guide explaining digital video recorder, how it works, channels, and which DVR to buy for your home or shop in Pakistan

10 min read · [gcctvms.hashnode.dev](https://gcctvms.hashnode.dev/what-is-a-digital-video-recorder-dvr?utm_source=hashnode&utm_medium=feed)

[Feb 13](https://hashnode.com/posts/what-is-a-digital-video-recorder-dvr/698efe38314c2eb5b803210b)

### [The Daily Responsibilities of a CCTV Monitoring Operator](https://gcctvms.hashnode.dev/the-daily-responsibilities-of-a-cctv-monitoring-operator?utm_source=hashnode&utm_medium=feed)

What does a CCTV monitoring operator do daily? 7 responsibilities from threat detection to incident response in a professional CCTV monitoring service

8 min read · [gcctvms.hashnode.dev](https://gcctvms.hashnode.dev/the-daily-responsibilities-of-a-cctv-monitoring-operator?utm_source=hashnode&utm_medium=feed)

[Feb 9](https://hashnode.com/posts/the-daily-responsibilities-of-a-cctv-monitoring-operator/69898bbf7c78a7985334d7f3)

### [Common Remote Doorman Mistakes to Avoid](https://gcctvms.hashnode.dev/common-remote-doorman-mistakes-to-avoid?utm_source=hashnode&utm_medium=feed)

Avoid common remote doorman mistakes that cost buildings thousands. Learn 12 errors sabotaging virtual doorman and virtual receptionist services

8 min read · [gcctvms.hashnode.dev](https://gcctvms.hashnode.dev/common-remote-doorman-mistakes-to-avoid?utm_source=hashnode&utm_medium=feed)

[Feb 7](https://hashnode.com/posts/common-remote-doorman-mistakes-to-avoid/6986e86ca5e9638b67cb7e45)

### [What is Real-Time CCTV Monitoring?](https://gcctvms.hashnode.dev/what-is-real-time-cctv-monitoring?utm_source=hashnode&utm_medium=feed)

What is real-time CCTV monitoring? Live surveillance with sub-20-second response. Compare CCTV monitoring services and remote CCTV monitoring services

8 min read · [gcctvms.hashnode.dev](https://gcctvms.hashnode.dev/what-is-real-time-cctv-monitoring?utm_source=hashnode&utm_medium=feed)

[Feb 5](https://hashnode.com/posts/what-is-real-time-cctv-monitoring/6984487e97d18b5ae5a16fa2)

### [Who is the Largest Surveillance Camera Distribution Company?](https://gcctvms.hashnode.dev/who-is-the-largest-surveillance-camera-distribution-company?utm_source=hashnode&utm_medium=feed)

Find out who leads the surveillance camera market globally and in Pakistan. Compare CCTV camera price, top distributors, and security camera options

8 min read · [gcctvms.hashnode.dev](https://gcctvms.hashnode.dev/who-is-the-largest-surveillance-camera-distribution-company?utm_source=hashnode&utm_medium=feed)

[Feb 4](https://hashnode.com/posts/who-is-the-largest-surveillance-camera-distribution-company/6982ef7fff718d0eaa9ac07e)