Laser-3000 Microphone Listening Device
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The LASER-3000 monitoring system has to be used when access to a room is otherwise impossible. The laser transmitter, with its beam being in the invisible infrared waveband, has to be directed to a window of the room to be monitored. A portion of the laser beam will be reflected by the window pane. The receiving part of the LASER-3000 picks up the reflected laser and converts it into electric signals which, after filtering, are amplified and fed into headphones and/or recording devices. The laser transmitter and receiver are built in a special splash-proof aluminum housing, allowing the system to be operated in inclement weather conditions. The state-of-the-art semiconductor laser is extremely mechanically robust and, due to its low power consumption, a running time of approximately 50 hours can be achieved by each battery set. System Includes: - Laser transmitter and a corresponding (shared in single housing)
- Laser-3000 Mounting Tripod
- Briefcase Recording unit
Technical Specifications: Transmitter LASER-3000: - Output Power: 10 mW max. Wavelength 880 nm
- Optical Divergence: 0.5 mrad
Receiver LASER-3000:
- Optical system: 135 mm, 1:2.8
- Laser: Class 3
Transmitter/Receiver Unit: Dimensions: 130 x 220 x 60 cm Weight: 1.6 kg Power Supply: 4 x UM - 2 Connectors socket for wired connection to amplifier Amplifier/Electronic unit: - System Filter amplifier Max gain 100 dB Equalizer type 5 band graphic
- Filter frequencies 300, 600, 1200, 2400, 4800 Hz
- Adjustment range +/- 10 dB
- Output phone 4-16 Ohm, 100 mW
- Output recording 200 mV at 50 KOhm
- Power supply 4 x UM - 1 or mains 110-240 VAC
- Battery lifetime up to 50 hrs
- Weight 8.2 kg
- Dimensions 25 x 28 x 5 cm
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