Whistler 438Ru Owner's Manual page 4

Laser/radar detector
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435ru-558ruman-wo_tat.qxp
1/30/2012
Feature Listings - 438Ru shown, 558Ru similiar
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FEATURES
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Whistler's ergonomic and user-friendly design provides a new
level of operating convenience. Special features include:
1. Bracket Release Button
of the mounting bracket.
2. Speaker
– provides distinct audio warnings for X, K, Ka
band radar and laser.
3. Mounting Bracket Location
firmly.
4. Radar Antenna
receives radar signals.
5. Front Laser
– high gain optical lens provides increased
sensitivity and field of view for leading-edge laser
detection.
6. Rear Laser
– an integrated optical waveguide provides
superior detection of laser signals transmitted from
behind.
7. City Button
- reduces the annoyance of false alerts
typically encountered in urban driving areas.
8. Quiet Button
- pressing QUIET before a signal is detected
engages Auto Quiet Mode which automatically reduces the
audio level after the initial warning to a low audio level setting.
Pressing QUIET during a radar/laser encounter silences
audio alerts, while allowing visual alerts to keep you
informed.
9. Power / Volume Control
adjusts the audio level.
10. Dim / Dark
- engages Dim/Dark modes.
11. Menu Button
12. Red OLED Text Display
brightness and color/shows alerts detected, signal
strength, and indicates engaged modes of operation.
13. Alert Periscopes
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visual alert.
FEATURES
– provides quick and easy release
– slot holds mounting bracket
– compact, high-efficiency antenna
– turns the unit on/off and
- enters Option Select Mode.
– provides better contrast,
- provide an additional attention getting
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