In the pre-1960s era, manufacturing, industrial, and government organizations employed security personnel, commonly known as "watchmen," to protect their facilities. These private security personnel, donning uniforms and using equipment similar to that of the police, were hired to prevent criminal activities from occurring. As World War II began, the number of private security personnel increased significantly, and many were hired to safeguard factories, manufacture military equipment, and secure government facilities.In the early 1960s, with the advancement of electronic technology, alarm systems and video surveillance were introduced. Pioneering companies like RCA, Motorola, and General Electric manufactured vacuum-tube...

In this era of technological advancement, the installation of home surveillance camera systems has become increasingly prevalent. These systems are found in various settings, and we encounter a plethora of surveillance cameras in our daily lives. Faced with this array of video surveillance products, it's imperative to understand how to make the correct selection, identify their differentiating features, and be mindful of installation considerations. Below, we'll delve into the quintessential knowledge that frequently arises when choosing and installing surveillance products for our homes.   **1. Compactness is Key:**    When it comes to designing home surveillance camera...

Welcome to OHWOAI, a professional brand specializing in surveillance equipment. We take pride in presenting the key points for installing surveillance cameras. In today's world, security is of paramount importance for both homes and businesses. That's why we offer a wide range of advanced DVR products, including DVR for security cameras, 8 channel DVR, security DVR, to provide you with comprehensive and efficient surveillance solutions.1. Choose the Suitable Surveillance System Acquisition ModeWhen installing a surveillance system, the first step is to decide on the acquisition mode. At OHWOAI, we offer multiple options. Whether you prefer using...