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虽然无线Wi-Fi网络提供给了我们相当大的方便，我们不再需要受网线的限制，端着笔记本电脑随处都可以上网了；
但是，无线WiFI网络也跟手机信号一样并不是任何地方都能收到的。可是如果是手机，你可以随便拿出来看看屏幕就知道您所处的位置有没有网络，但如果是电脑就需要开机启动并检测才可知道。
这种小巧方便的装置带在身上,可以随时显示出所在地有没有wi-fi网络等。
它的操作很简单，只要你按下按钮就可以立刻检测当地的WiFi网络了，它还有四个指示灯等来指示网络信号的强弱。
它能够检测最远达200米远的802.11b和802.11g网络。并且它还有过滤技术能够过滤掉如手机信号，蓝牙网络以及微波等信号。
WiFi Seeker Features
Standalone device: no computer required.
Fast detection: signal typically found in less than 1/2 of a second.
4 bright LEDs for easy and accurate indication.
Directional antenna helps locate access point.
Small and lightweight for maximum convenience.
Not fooled by other RF emitting devices such as cordless telephones, baby monitors or microwave ovens.
90 day warranty.
WiFi Seeker Technical Specifications
Dimensions: 2.25” x 1.20” x 0.43”
Range: Detects (802.11 b/g) signals from access points up to 300 feet away.
Signal strength indicator: 4 steps with 4 LEDs
Detection time: 0.3 to 0.5 seconds, typical
Antenna type: Dipole, internal
User Replaceable Batteries: 2x CR2032
Operating Voltage: 2.7V nominal
Power consumption:
Scanning: 20 mA
Locked on signal: 9 mA
Temperature:
Operating: 0 to 50 deg. C
Storage: -20 to 75 deg. C
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