Options and Ancilliary Equipment
SENSORS
A specifically designed active IR Sensor Beam Pair is normally supplied
to drive the sensor input(s) of the range of recorders. For easy
setting up and aligning, the IR beam sensors are fitted with ball
and socket couplings and solid clamps designed for easy mounting
to a tree trunk or star picket. The sensor pairs can be set up to
15 metres apart, establishing an invisible infra-red light beam
between the sender and the receiver. The sensors are waterproof,
predictable and very reliable in outdoor environments, utilising
pulsed and polarised IR light to eliminate false triggering from
extraneous light sources.
We also offer a Passive IR sensor. PIRs are able to sense a larger
volume of space at your study site, and are easier to set up and
adjust. On the downside, they are more prone to the occasional false
trigger. Also, they are less suited to the sensor filtering processes
described above.
IR ILLUMINATORS
The recording of animal behaviour at night or in caves, without
causing a modification of that behaviour, is a basic criterion of
a versatile and effective wildlife surveillance system. With this
in mind, Faunatech has developed a number of IR illuminators to
mate with either the Camcorder or Modular Video system.
These infra-red strategic lights utilise infra-red LEDS, virtually
undetectable to mammalian eyesight. A master illuminator is mounted
in the camera housing lens hood, while auxiliary or slave illuminators
are mounted in small and inconspicuous 40mm diameter by 40 mm long
housings. Power consumption is a low 200mA per unit. For easy setup,
slave illuminators are fitted with swivel mounts and brackets suitable
for mounting to tree trunks, post tops or star pickets.
A light sensor circuit disables the illuminator during daytime
light levels further reducing overall power consumption. Up to four
or so of these slave illuminators can be connected to the master
unit.
RADIO LINKED COMPONENTS
In certain situations, cable connected accessories may be inappropriate
or undesirable. Examples include where sensors must be placed at
great distance from the recorder or camera, where rodents are known
to chew through wires, or where cables betray the position of accessories
during covert surveillance deployments. In these situations, optional
wireless links can be installed between the recorder/camera housing
and the sensor components or auxiliary illuminators. In the case
of the modular video systems, a radio link between the camera and
the recorder housing can be installed, to transmit both sound and
vision from the camera module to the recording unit (at a range
of up to 100 metres).
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