Conventional Detectors
Orbis Multisensor Smoke Detector 
The Orbis multisensor uses the new optical technology (see above) in conjunction with a heat sensor to further extend its capabilities as a smoke detector. It should be noted that the Orbis multisensor is designed as a smoke detector and cannot be switched from smoke to heat detection.
Orbis Heat Detectors
There are six heat detectors in the Orbis range. The detectors are classified according to EN54-5 as rate-of-rise or static and are designated 'R' or 'S' accordingly. Static heat detectors will respond only when the alarm threshold is reached. Rate-of-rise detectors have this fixed upper limit, but also measure the rate of increase in temperature.
Orbis TimeSaver Base
The TimeSaver Base® is a completely new design with a large open working area and single quadrant terminals. Other features include two fixing centres, a guide on the base interior to indicate the length of cable to be stripped and E-Z Fit slots to make fitting to a BESA box easier. There is also a continuity link that enables voltage testing of zone wiring prior to commissioning. The link is automatically broken when the detector is first inserted. The base also has a locking mechanism so that if detectors need to be locked in, a marked part of the base is simply cut out to make it a locking base.
Orbis Optical Smoke Detector
A new sensor design enables the Orbis optical smoke detector to respond to a wide spectrum of fires without compromising reliability. The detector is calibrated to make it highly reliable but much less likely to generate false alarms. It uses algorithms to decide when is should change to the alarm state. Orbis optical detectors sample the atmosphere every four seconds and the measurements are processed by microprocessor. The processing power is used as part of the design to eliminate unwanted alarms.
