Features:

-Ultimate sensitivity: detects medium sized pistol from 9″ distance; large knife from 6″; razor blades and box cutters from 3″ distance; foil-wrapped drugs and tiny jewelry from 1″.
-Self-calibrating: digital microprocessor technology eliminates the need for periodic sensitivity adjustments.
-Rugged, high-impact ABS case with reinforced coil compartment. Exceeds Mil-Std-810F (drop test) Method 516.5, procedures II and IV.
-Large 8″ scan surface for quick, thorough scanning.
-No tools required to change standard 9V battery (included).
-Sharp audible alarm and bright red LED indicates the detection of metal.
-Momentary push button helps temporarily eliminate detection of nearby ambient metal such as rebar, metal walls.
-Three-color LED indication: Green LED indicates ON; Amber LED indicates LOW BATTERY: Red LED indicates ALARM.
-Operating temperatures: -35 F (-37 C) to 158 F (70 C)

Specifications:

Operating Temperatures
-35 F (-37 C) to 158 F (70 C)

Humidity
To 95% noncondensing

Audio Frequency
2kHz Warble

Tuning
Automatic

Indicators
Speaker
LED Alert Lights

Green: Power ON
Amber: Battery LOW
Red: ALARM condition

Controls
Power switch (On / Off)
Interference Elimination Momentary Switch

Battery
Single 9 volt battery provides up to 60 hours of normal operation.