SKU: 18108139397

Ohaus ST300D Portable Dissolved Oxygen Meter

Sale price$309.82 Regular price$344.24
Save 10%

Pay in installments of $86.06 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Ohaus ST300D Portable Dissolved Oxygen MeterOhaus ST300D Portable Dissolved Oxygen Meter The Starter 300D provides accurate and reliable DO measurement, critical to aquatic life and water quality. With a simple calibration process, quick delivery of measurements and automatic temperature compensation, the Starter 300D is both easy to use and accurate. The automatic or manual endpoints allow the user to easily recall the last calibration data and stored information with one quick touch. The

Ohaus ST300D Portable Dissolved Oxygen Meter

The Starter 300D provides accurate and reliable DO measurement, critical to aquatic life and water quality.  With a simple calibration process, quick delivery of measurements and automatic temperature compensation, the Starter 300D is both easy-to-use and accurate.  The automatic or manual endpoints allow the user to easily recall the last calibration data and stored information with one quick touch.  The galvanic electrode can be used immediately after being powered on without the wait time typically associated with dissolved oxygen meters.  The 30-measurement library stores data for future reference and allows the user to easily recall the last calibration data with one quick touch. 

Packages - Available in three configurations:  

 ST300D-B ST300D ST300D-G
  • 300D Meter with IP54 sets
  • Electrode Clip
  • Wrist Strap
  • 4 AAA Batteries
  • Probes not included

 

 

  • 300D Meter with IP54 sets
  • Electrode Clip
  • Wrist Strap
  • 4 AAA Batteries
  • STD011 Galvanic DO Probe
  • STTEMP30 Temperature Probe
  • 300D Meter with IP54 sets
  • Electrode Clip
  • Wrist Strap
  • 4 AAA Batteries
  • STD011 Galvanic DO Probe
  • STTEMP30 Temperature Probe
  • Portable Bag

 

Specifications:

  • Measurement Range: 00 – 19.99; 20.0 – 45.0 mg/L; 200 – 400%; 0 – 50 °C
  • Measurement Resolution: 1 mg/L; 1 mg/L; 0.1%; 1%; 0.1 °C; 0.1 ppm; 1 ppm
  • Accuracy: ± 0.3 mg/L; ± 1%; ±0.3 °C
  • Display: LCD
  • Electrode: STDO11 (Not included in ST300D-B); STTEMP30 (Not included in ST300D-B)
  • Accuracy DO: 1%
  • Accuracy ± (Temperature) 3 °C
  • Battery Life: 250 Hours with Disposable Batteries
  • Calibration: 2-point
  • Dimensions: 38 in x 6.69 in x 3.54 in (35 mm x 170 mm x 90 mm) (HxLxW)
  • In-Use Cover: No
  • Measurement Range DO: 0 % – 200 %; 200 % – 400 %; 0 ppm – 20 ppm; 20 ppm – 45 ppm
  • Measurement Range (Temperature): 0 °C – 50 °C
  • Net Weight: 35 lb (0.16 kg)
  • Parameter: Dissolved Oxygen
  • Power: 4 AAA (LR03) Batteries (Included)
  • Resolution (DO): 01; 0.1
  • Resolution Range (DO): 01-0.1
  • Temperature Compensation: Automatic
  • Temperature Resolution: 1 °C
  • Temperature Sensor: 30 KΩ NTC
  • Working Environment: 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

ST300D Compatible Probes:

  • Temperature Probe: STTEMP30
  • Galvanic DO Probe: STD011

Starter Series Data Sheet
ST300D Manual


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18108139397

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
V
Verified Purchase
Virginia Wharton
Birmingham, US
★★★★★ 5
It is really well made and perfect for travel!
It is just like the picture and it is lovely. Plenty of room and under the tray it is large enough for changes with pendents. It is perfect for a girl and will be perfect for the amount of jewerly you take when traveling. Thank You!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
J
Verified Purchase
Jamie C.
Fort Morgan, US
★★★★★ 5
Very nice little box.
This is a great little jewelry box. I don’t have tons of jewelry right now, so this fits everything well, and the leather-look material is very nice. I like the simple design and organization, and it is a nice size to travel with. It looks really pretty sitting on my dresser and goes with the aesthetic of my home well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
S
Verified Purchase
Suly
Lake Worth, US
★★★★★ 4
Pretty
Very nice simple jewelry box. My only issue is spacing to put necklaces is a bit tight, but there is plenty of room in this little guy. I put a lighter next to it, for size comparison.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
S
Verified Purchase
Siddeek D. Ali
Draper, US
★★★★★ 5
Great item
Great item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
K
Verified Purchase
Kindle Customer
Los Angeles, US
★★★★★ 5
Chic little box
Perfect size for area. Holds plenty small jewelry items. Secure closure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

recommand products