Why Choose Relish Fire
Relish Fire Private Limited (RFPL) have complete Fire & Security Solutions like Fire-Hydrant, Fire Alarm System, Fire Extinguishers, CCTV And Security Equipments Etc. A fire alarm system has a number of devices working together to detect and warn people through visual and audio appliances when smoke, fire, carbon monoxide or other emergencies are present. ... Alarms can be either motorized bells or wall mountable sounders or horns. You can have CCTV professionally installed, and, in some circumstances this may be appropriate. However, modern technology has made CCTV products much more affordable and for the average DIY person, easy to fit. With such a large selection of cameras and prices, it is difficult to decide what to select. We have the following guide to help you choose the correct products. We also provide simple illustrations of fitting, from complete systems to fitting in domestic and commercial properties.
'WIRE-LESS'A very popular system, wireless transmission is governed by regulations which allow licensees-exempt systems to transmit signals up to 100 meters in line of sight. However, this can reduce to about 30 meters when used indoors. Basic wireless cameras work on one frequency, this means you cannot use 2 cameras within 100 meters of each other. There are cameras and receivers with 4 selectable channels which allow for multi-camera systems. We also supply the small covert type of camera with its own built-in transmitter. See our product range.
A 'wireless' camera requires a power source, this is usually obtained by plugging into the mains, making it not strictly 'wire-less'. Batteries, which have a finite life, are not suitable for permanent installations. The voltage required is in the range 9-12V DC. A power supply in the loft is often quite easily accessible. Wireless systems are used where running the video cable back to VCR or monitor is not viable. Wireless cameras can be used for temporary monitoring of stock rooms offices etc. Miniature wireless cameras, using battery power, can be fitted to model aircraft, trains, boats etc, with the receiver connected to a domestic camcorder, giving a realistic on-board experience.
'WIRED'Wired cameras have virtually no interference and can be positioned a long distance from the monitoring/recording equipment. The cameras rarely need their own power supply. Normally one cable takes power and signal back to the recording device. We supply DIY kits where the camera is powered by the base unit, eliminating the need to plug the camera into a mains outlet.
'TYPES of CAMERAS'A traditional CCTV camera has an 'industry style' look, making it unsuitable for fitting to homes or shops. Top-end cameras are usually specified without a lens and are chosen to give the focal length required and field of view. There are two common types of CCTV cameras, CMOS and CCD (see Glossary of terms). CMOS based cameras are generally cheaper, but do not produce such clear or sharp images. If there is a need to easily identify who or what is being captured and recorded, CCD cameras provide pin-point clarity and are best where clarity is needed. Integrated cameras and lenses are sealed to prevent moisture damage. This sealing process enables them to be used under water if required. They do not need a heater and their size makes them suitable for fitting to domestic and commercial properties. Because they are permanently sealed it is not possible to adjust these cameras. Many integrated cameras are fitted with a 3.6mm lens giving a 72deg angle of view which is suitable for most domestic and small commercial properties. We also have cameras with a narrower angle of view allowing the cameras to 'see' further - the angle of view for all of our cameras is stated within the bullet point copy.
