Product Delsar LifeDetector – LD3

Used by FEMA, UKSAR, SUSAR and rescue teams from around the world, the Delsar LifeDetector is seismic/acoustic listening device to detect and locate live victims trapped in:

  • Collapsed structures caused by earthquakes
  • Explosions
  • Landslides
  • Mine disasters or cave-ins

The Delsar LifeDetector converts the entire collapsed structure into a large sensitive microphone that transmits noises from entombed victims.  The seismic and acoustic sensors convert vibrations created by the live victim into audible and visual signals. The Delsar is rugged, reliable and able to withstand days of continuous use at the disaster site.

Delsar Life Detector – LD3 Features

  • Easy-to-Read Clear Display Panel
  • Equipped with up to 6 Sensors
  • View simultaneously the strength from all sensors to ID the strongest signal
  • Noise Reducing Filters for better audio quality
  • Record last five minutes of audio
  • Twin Headphone Jacks
  • Lithium Ion Batteries compatible with SearchCam 3000

Delsar Life Detector - LD3 Accessories

  • Delsar Victim Simulator DVS-100
  • Acoustic Sensor #2 LD3-AS2
  • Seismic Sensors LD3-SENSOR#_
  • Sensor Connecting Cable, 10m on Spool LD3-Cbale 10M
  • Sensor Connecting Cable, 3m LD3-Cbale 3M
  • Sensor Spike LD3-Spike
  • Magnetic Sensor Clamp LD3-MAGNET
  • Cable Connector Cap, Pack of 6 LD3-CAP C
  • Sensor Connector Cap LD3-CAP S
  • Telescoping Tube Set for Acoustic Sensor LD3-TT

 Delsar Life Detector – LD3 Specifications

Control Console  
Sensor Inputs 2 strings
Seismic Sensor 6
Acoustic Sensor 2
Visual Display Up to all six sensors simultaneously
Audio Output 2 headphone outputs
Audio Selection 0-6 sensors, audio response is summed, stereo output can be selected with any 2 sensors
Frequency Range  1 Hz - 3000 Hz
Filter range  
Low High pass, 100 Hz>
AC Notch 50/60 Hz
High Low pass, 600 Hz <
Record Capacity

300 second loop, indexed to 15 second blocks

Auxiliary Output Provides audio, chart recorder and remote control function capability  
Seismic Sensor  
Position sensitivity Can be used in any position
Sealing IP67 (water and dust tight)
Shock resistant >1000g
Freq. response 1 Hz to 3000 Hz
Acoustic Sensor  
Sealing IP67 (water and dust tight), microphone must be dry for operation
Freq. response 200 Hz to 3000 Hz
Options Telescoping Probe
Type Rechargeable Lithium Ion tube pack
Endurance 2 - 6 hours depending on number of sensors  
Recharge time 3 hours
Charger Pwr 12 VDC (vehicle charging) 110-220 VAC
Batt. Options Disposable Lithium cells (CR123) with adapter Searchcam 2.5 Ahr/5 Ahr SLA belt pack with adapter cable
Control Console 6"W x 5"H x 3.25"D (152 mm x 127mm x 83 mm)
Weight 2.2 lbs (1Kg) with rechargeable battery
Seismic Sensor 3.5" Diameter x 2.6" H (89 mm  x 66 mm)
Weight 16.5 oz (.466Kg)
Acoustic Sensor 1.625"D x 6"L (41mm x 152mm)
Sensor Cable Length 30.2 feet (10M)
Case 32" L x 21" W x 12" D (81cm x 53cm x 31cm)
Weight (loaded) 45 lbs (20.4Kg)

Delsar Life Detector – LD3

   LD 3 LD3 Mini 
 Type of Search  Extensive  Hasty
 Seismic Sensors  6  2
 Acoustic Sensors  2  1
 Sensor Display  2
 # Headphones  2  1
 Frequency Range  1 HZ - 300HZ  1 HZ - 300HZ
 Recording Capacity  5 minutes  5 minutes
 Length of Batteries  2-6 Hours  2-6 Hours
 Length of Batteries  Lithium Ion  Lithium Ion
 Telescoping Probe  No  No


Delsar Customers

  • City of Baltimore, Baltimore, MD
  • City of St. Charles, St. Charles, MO
  • City of Tempe, Tempe, AZ
  • Kansas City Fire Department, Kansas City, MO
  • Emergency Management, Las Vegas, NV
  • City of Sacramento, Sacramento, CA
  • Town of Hampton Fire Department, Hampton, NH
  • Pennsylvania USAR, Harrisburg, PA
  • Heavy Rescue Task Force, St. Charles, MO
  • Illinois Fire Service Institute, Champaign, IL
  • City of Plano, Plano, TX
  • Portland Office of Emergency Management, Portland, OR
  • City of Anaheim, Anaheim Hills, CA
  • San Ramon Valley Fire, San Ramon, CA
  • Oklahoma City Fire Training, Oklahoma City, OK
  • County of San Bernardino, San Bernardino, CA
  • Flagstaff Fire Station, Flagstaff, AZ
  • Calhoun Fire Department, Calhoun, GA
  • Fire & Rescue, Jacksonville, FL
  • Alamo Fire Department, Alamo, TX
  • Haltom City Fire Department, Haltom City, TX
  • Indianapolis Fire Department, Indianapolis, IN
  • Park Forest Fire Department, Park Forest, IL
  • Northwest Fire District, Tucson, AZ
  • Kansas City Fire Department, Kansas City, MO
  • Grand Rapids Fire Department, Grand Rapids, MI
  • Lorain County EMA, Oberlin, OH
  • Department of Homeland Security – FEMA USAR
  • Orange County Fire Authority, Foothill Ranch, CA
  • City of Senatobia, Senatobia, MS
  • Independence Fire Department, Clarkson, MI
  • City of High Point, High Point, NC
  • City of Tucson, Tucson, AZ
  • Madison County Commission, Huntsville, AL
  • City of Glendale, Glendale, AZ
  • City of South Jordan, South Jordan, UT
  • Pittsfield Township Fire Department, Ann Arbor, MI
  • Charlotte Fire Department, Charlotte, NC
  • Allegheny County EMA, Pittsburg, PA
  • State of Florida, Ocala, FL
  • Emergency Services, Spokane, WA
  • Florence Police Department, Florence, AL
  • Bucks County Emergency Management, Ivyland, PA
  • Tupelo Fire Department, Tupelo, MS
  • City of Williamsport, Williamsport, PA
  • Town of Friday Harbor, Friday Harbor, WA
  • Houston Fire Department, Houston, TX
  • City of Montgomery, Montgomery, AL
  • City of Appleton, Appleton, WI
  • Township of Woodbridge, Hopelawn, NJ
  • TEEX – USAR, College Station, TX
  • Heavy Rescue Task Force, St. Charles,MO
  • City of Chandler, Chandler, AZ
  • County of Marathon, Wausau, WI
  • City of Glendale, Glendale, Ca
  • City of Stamford, Stamford, CT
  • Rochester Fire Department, Rochester, MN
  • City of Montebello Fire, Montebello, CA
  • City of Los Angeles, Los Angeles, CA
  • Blair County 911, Altoona, PA
  • City of Downey, Downey, CA
  • City of Dallas, Dallas, TX
  • Portland Fire, Portland, OR
  • County of Santa Barbara, Santa Barbara, CA
  • San Francisco Fire Department, San Francisco, CA
  • City of Anaheim, Anaheim Hills, CA
  • Ingham County Sheriff’s Office, Mason, MI
  • City of Los Angeles, Los Angeles, CA
  • Cuyahoga County EMS, Cleveland, OH
  • County of Orange, Silverado, CA
  • Charlotte Fire Department, Charlotte, NC
  • Fresno City Fire Department, Fresno, CA
  • City of Tulsa, Tulsa, OK
  • City of Memphis, Memphis, TN
  • Oklahoma City Fire Training, Oklahoma City, OK
  • Orange County Fire Authority, Foothill Ranch, CA
  • City of Chattanooga, Chattanooga, TN
  • Department of Natural Resources, Benton, IL
  • Broward Sheriff Office Fire TR, Ft. Lauderdale, FL
  • Alabama Heavy Rescue, Madison, AL
  • County of Ventura, Oxnard, CA
  • Seminole County Training CTR, Longwood, FL
  • Corpus Christi FD, Corpus Christi, TX
  • Vancouver Fire & Rescue, Vancouver, BC
  • City of Vernon, Vernon, CA
  • City of Bothell Fire & E.M.S., Bothell, WA
  • Orange County, Orlando FL
  • City of Marin, Nicasio, CA
  • Westchester County Emergency Services, Valhalla, NY
  • Yonkers Fire Department, Yonkers, NY
  • Augusta Fire Department, Augusta, GA
  • Orlando Fire Department, Orlando, FL
  • Palm Beach County Fire & Rescue, Palm Beach, Fl
  • Clearwater Fire & Rescue, Clearwater, FL
  • City of Lubbock, Lubbock, TX
  • Fire Training School, University of Kansas, Lawrence, KS


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