WatchHound Mobile Phone Detector


WatchHound Mobile Phone DetectorWatchHound Mobile Phone Detector


WatchHound™ Mobile Phone Security Monitor continuously scans any mobile phone 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 mobile phone activity and detect all voice, text and cellular data triggers in realtime.
* Standby mode (autonomous registration) varies from base station to base station with phones typically registering between once every few minutes to up to 20 minutes. This time varies greatly based upon carriers, distance from base stations and individual handset manufacturers' standards.



  • 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
  • Designed and manufactured in the USA


North American model

PCS (1850-1910 MHz)

CDMA (824-849 MHz)

GSM (896-901 MHz)

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  100 feet (~30 meters) under typical conditions
Dynamic Range 60 dB

-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
Weight Under 1lb. with omni-directional antenna (less than 2lb. (30 oz.) with directional antenna)
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

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