B501 bases are four-inch flangeless mounting bases designed for use with System Sensor® 200 Series detectors. They are intended for use with intelligent systems that have screw terminals for power (+ and -) and remote annunciator connections.

200 Series Isolator Base provides short circuit protection in communication loop

Socket with Insulator and Output for External Indication.

The intrinsically safe addressable optical smoke detector consists of an optical camera sensitive to light scattering. Suitable for use in all areas subject to risk of explosion.

The Opal NFX-TFIX58 & NFX-TFIX78 are fixed temperature analogue addressable sensors employing low mass thermistors and microprocessor technology for fast response and linear temperature sensing

The Opal NFX-TFIX58 & NFX-TFIX78 are fixed temperature analogue addressable sensors employing low mass thermistors and microprocessor technology for fast response and linear temperature sensing

The Opal NFX are fixed temperature analogue addressable sensors employing low mass thermistors and microprocessor technology for fast response and linear temperature sensing

The Opal NFX are fixed temperature analogue addressable sensors employing low mass thermistors and microprocessor technology for fast response and linear temperature sensing

The Opal photoelectric smoke detectors has a completely new detection chamber design, the result of many years of research and development

The Opal multi-criteria, multi-sensor, photo, thermal detectors uses thermal assistance to the core photoelectric smoke detector to give enhanced false alarm immunity and faster response to a wide range of incipient fires.

The Opal multi-criteria, multi-sensor, photo, thermal and infra red (SMART3) detectors are the environmentally friendly alternative to the ionisation detector, a technology that is now over sixty years old.

The Opal photoelectric smoke detector has a completely new detection chamber design, the result of many years of research and development.