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Newman DD-300- Non-display Digital OB Doppler

SALE 20%
Original price $591.67
Current price $473.33

Newman DD-300- Non-display Digital OB Doppler

These audio only Dopplers provide great value if all you need is to hear the Doppler sounds loud and clear. They include a display of battery condition, signal strength, and volume setting, but do not have a heart rate display.


  • Better Sound – Digital Sound Clarity-DSC™ produces up to 6x signal of other Dopplers
  • Better Warranty – 5 year honest warranty – all parts & labor. Includes rechargeable batteries on rechargeable units.
  • ‘Unbreakable’ magnetic probe holder
  • All probes are interchangeable
  • User replaceable cord eliminates service downtime
  • Powered by 3 AA batteries offer extended battery life of 900 mins 
  • Dimensions (h x w x l): 150 x 65 x 35 mm (6.0 x 2.5 x 1.25 in)
  • Weight: 340 grams (12 ounces)


Superior sound quality

Our Dopplers have the sensitivity and audio response to allow you to hear the fetal heart tones quickly and clearly. All our DigiDops have our state of the art Digital Sound Clarity – DSC™. A sound processor in the main unit enhances the sounds you want to hear while reducing those you don’t. The DSC™ processing is optimally set for each different probe frequency.

The DigiDops speakers are small but powerful high fidelity speakers that have extraordinarily smooth and rich response over the whole range of Doppler sounds.

Built to last

With our industry-leading five-year warranty we have made sure that the DigiDop will stand up to hard use day after day. The combination of our sturdy design and warranty can save you significant service costs.

The body is made of a mix of tough plastics with a unique stainless steel grill over the speaker. Our latest DigiDop’s smooth, clean lines are also more comfortable in the hand. The grill now has micro-screen openings to protect the speaker; the speaker itself has an internal sound transparent fabric cover to keep out dirt and dust.

Our unique magnetic probe holder won’t crack or break and gently cradles the probe when not being used. The strong magnets we use hold the probe without being sensitive to how it’s rotated. The open design avoids gathering dirt, gel and germs.



Obstetrical Probes

All DigiDop obstetrical probes provide the sensitivity and reliability you need. All probes will work on all DigiDops for maximum versatility. Our 2 and 3 MHz obstetrical probes utilize our exclusive eXtended Depth – XD™ technology that has increased sensitivity at closer depths without sacrificing it at deeper depths. These probes create more than six times as much signal at some depths than other probes. All of our OB probes have a smooth contour design that is comfortable to hold, comfortable for the patient, and easy to clean.

  • 2 MHz probes provide excellent deep penetration for late term pregnancy or larger patients.
  • 3 MHz probes are especially sensitive to early fetal hearts but can also be used throughout the pregnancy.
  • Both 2 and 3 MHz probes are available in water proof versions for water-assisted labor and delivery. These waterproof probes can be removed from the DigiDop and replaced with a standard probe.
  • A variety of vascular probes may be used interchangeably with any DigiDop.
DigiDop 300 non-display Doppler, 2MHz obstetrical probe
DigiDop 300 non-display Doppler, 2MHz waterproof obstetrical probe
DigiDop 300 non-display Doppler, 3MHz obstetrical probe
DigiDop 300 non-display Doppler, 3MHz waterproof obstetrical probe
DD-300-D5 DigiDop 300 non-display Doppler, 5MHz vascular probe
DD-300-D8 DigiDop 300 non-display Doppler, 8MHz vascular probe

    Technical Specifications 


    • Level of Protection against electrical shock
    • Type B Applied Part
    • Class II Equipment
    • Designed to meet the following standards:
    • IEC60101-1; IEC60601-2; IEC60601-2-37
    • Dimensions-imperial (h x w x d): 6” x 2.5” x 1.25”
    • Dimensions metric (h x l x w): 152 x 64 x 32 mm
    • Weight (with batteries): 370 grams (13 ounces)
    • Operating Temperature: 10° to 40°C (50° to 104°F)
    • Operating Humidity: 30% to 75%
    • Transport/Storage Temperature: -20° to 50°C (-4° to 122°F)
    • Transport/Storage Humidity: 5% to 90%, non-condensing
    • Battery Voltage, type: 3 x 1.5 volts, AA Alkaline; 3 x 1.2 volts, AA NiMH
    • Battery Life: NiMH: 500, 1-minute exams; Alkaline: 750, 1-minute exams
    • Audio Bandwidth and power: 100Hz – 3000Hz, 1.0W
    • Heart Rate Calculation accuracy: +/- 3 BPM
    • Audio Cable Interface: 3.5mm stereo plug


    DD-300 & DD-301 Non-display Doppler Systems Brochure 


    Industry Leading Five Year Warranty

    fetal doppler warranty

    All our DigiDop Dopplers come with a ‘bumper-to-bumper’ 5 year warranty. The warranty includes both parts and labor and covers not just the main unit but also the probes and cords. We can offer this outstanding warranty because our design and materials reduce the number and cost of warranty issues.

    Batteries and Smart Recharge System

    Never worry about batteries again with this outstanding and unique combination of premium batteries and Smart Recharging System – SRS™. We use batteries that can be recharged more than 2000 times – far more than usual rechargeable batteries. This reduces costs and waste significantly. These special batteries will maintain their charge for years when not being used. Our Smart Recharge System charges the batteries quickly but will not overcharge. The system will also detect if non-rechargeable batteries have mistakenly been inserted and will stop charging before causing damaging battery leakage. The DigiDop utilizes a standard micro USB connection so that confusion about whether the charger is the correct voltage or not is eliminated. These advanced batteries and the Smart Recharging System literally save you hundreds of dollars over the lifetime of the DigiDop.

    Made in the USA

    Our products are designed and manufactured near Denver Colorado, a long-time center for diagnostic ultrasound products. Each product, including each probe, is individually inspected and tested to assure quality and durability. We have a very experienced team that has been in the Doppler business for many years – back to the time the first fetal Dopplers were introduced.