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WatchHound Cell Phone Security Monitor continuously scans any cellphone prohibited area for wireless activity essentially creating wireless-free zones without the need for jamming.

All incoming and outgoing cellular calls are detected (in active or standby mode*) and time stamped for later analysis. The award-winning* WatchHound receiver can also be configured to look like a common thermostat on any wall for more covert enforcement and features an ultra-crisp OLED display, remote control and utilizes Power (PoE) over Ethernet or from the included AC power supply.
Audible alerts are relayed over the internal speaker, headphone output or create a custom alert to be triggered via the dry contact port. WatchHound's simple thumbstick/push button control allows any security personnel to easily set threshold levels, check past cell phone activity and detect all voice, text and cellular data triggers in realtime.




  • U.S. & European multi-band receiver (Cellular, PCS, CDMA, GSM)
  • Continually scans for cellphone uplink activity
  • Bright OLED display
  • Networkable to multiple units to enforce a secure, wireless-free perimeter
  • Receiver design boasts a dynamic range of 60 dB with user selectable sensitivity
  • Power (PoE) over Ethernet or included AC power supply
  • Dry contact ports to trigger custom alerts
  • Time stamp of all cellular detection (using optional PC software)
  • USB port included to download recorded measurements to a PC for further analysis
  • User selectable mobile frequency bands allow the same unit to be used around the world; both USA and European mobile uplink bands are supported
  • User selectable sensitivity from -80 dBm to –50 dBm with a resolution of 2dB for detection in a noisy environment
  • Simple, single push button/trackball operation



Watchhound - Video Presentation




European / Asian / Australian / New Zealand model WCDMA / UMTS (1920-1980 MHz) Europe, Asia, Korea, Japan, Australia, Brazil, New Zealand
GSM 1800 (1710.2-1784.8 MHz) Europe, Aisa, Japan
EGSM 900 (880-915 MHz) Europe, Asia, Australia, New Zealand
Radius of Coverage Area: ~30 meters under typical conditions
Dynamic Range: 60 dB
Sensitivity: -80 dBm (with zero input attenuation)
Detector Resolution: 2 dB
Bandwidth Resolution: 4 MHz
Selectivity Rejection: >50 dB @ 1 MHz from uplink band edges
Antennas Supported: Optional Direction finding (field-swappable multiband panel antenna with SMA connector)
Included Omni-directional (quarter-wave multiband, monopolar antenna with SMA connector)
Integral/Covert (optional quarter-wave, multi-band, monopole connected internally,10 dBi gain)
RF Input: SMA jack for external antenna
Mini-USB Port: Mini-USB jack for connecting to a PC
DC Power Input: DC jack for connecting to a supplied external AC power supply
Optional external 8000 mAh battery pack (hidden behind unit) for backup power also available
LAN Interface: PoE-capable ethernet port
Dry Contact Port: Polarity insensitive, for triggering other devices
Audio Alert: Audio alert message via loudspeaker
Visual Alerts: LCD screen, mini-trackball illumination (red or blue)
Tactile Inputs: Compact, pushbutton trackball for versatile control
Integral Attenuator: 0 to 30 dB, user-selectable via soft menu
Sensitivity Range: -80 to -50 dBm, user-selectable via soft menu
Data Logging: Optional PC software
Frequency Bands: Field-selectable via soft menu 3 different sets of international frequency bands (US and EU)
Frequency Identification: Detects and displays cell phone uplink signal with a resolution of + 2 MHz



Frequently Asked Questions

Can the WatchHound be used to locate cell phones?

No, because the WatchHound unit is deployed on a fixed wall, which precludes the possibility to "triangulate" the source of RF signals. By contrast, a hand-held cell detector can locate cellphones by taking two or more bearings (or, Lines of Position) of the source.

Can many WatchHound units be used to monitor a large area simultaneously ?

Yes, this is possible by deploying the WatchHound Application Software package which allows the user to monitor multiple WatchHound units fron a PC screen.

Can the WatchHound run out of power?

No, because the WatchHound does not use batteries, it derives its power either over a PoE Ethernet port or is powered by an AC adaptor. In addition, WatchHound can also include an external (hidden behind unit) optional 8000mAh battery pack

Can the WatchHound store data?

No because it does not have to, since it is networked over Ethernet.

What kind of antenna is used by the WatchHound?

The WatchHound can be deployed either by an Omnidirectional or Directional antenna. When deployed at large inner open spaces the Omnidirectional antenna would be used. When deployed in corridors or otherwise constricted spaces a Directional antenna could be more efficient.

Does the WatchHound provide audible or visual alerts ?

Yes, it will provide a voice alert as well as a visual alert on its LCD display.

Does the Watchhound Cell Phone Monitor identify callers or their phone numbers?

No. Watchhound Cell Phone Monitor is a simple, low-cost scanning device that simply identifies and timestamps nearby cellphone activity from a fixed point. It is a wireless tool used by security officers and personnel that require a NO WIRELESS security policy.

How far away can I detect cellphones?

Typical range is about 30 meter but this varies depending upon the environment.

Does Watchhound Cell Phone Detector detect phones that are powered off?

No. A phone that is turned off cannot be detected with the WatchHpund. Please look at our Spider Detector. He is able to detect cell phones powered off.



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