Thermo Orion Star A321 Portable pH Meter

The Thermo Orion Star A321 portable pH meter provides lab-quality accuracy for advanced pH readings in any location.

Features

  • Calibration editing ensures accurate pH, mV, RmV and temperature readings
  • AUTO-READ function alerts user and locks stable readings on backlit LCD screen
  • USB and RS-232 ports allow easy data transfer of up to 5000 time-stamped data points
List Price $801.00
Your Price $744.93
Usually ships in 3-5 days
Thermo Scientific
Government and Educational PricingGovernment and Educational Pricing
Free Lifetime Tech SupportFree Lifetime Tech Support
Free Ground ShippingFree Ground Shipping
ImagePart#Product DescriptionPriceStockOrder
Thermo Orion Star A321 Portable pH MeterSTARA3210 Orion Star A321 pH Portable Meter
$744.93
Usually ships in 3-5 days
Thermo Orion Star A321 Portable pH Meter STARA3215 Orion Star A321 pH Portable Meter Kit
$1,281.54
Usually ships in 3-5 days
Thermo Orion Star A321 Portable pH Meter
STARA3210
Orion Star A321 pH Portable Meter
Usually ships in 3-5 days
$744.93
Thermo Orion Star A321 Portable pH Meter
STARA3215
Orion Star A321 pH Portable Meter Kit
Usually ships in 3-5 days
$1,281.54
ImagePart#Product DescriptionPriceStockOrder
Thermo Orion Star A-Series Hard Carrying Case STARA-CS Orion Star A-series portable hard field case
$143.22
Usually ships in 3-5 days
Thermo Orion Star A-Series Soft Carrying Case 1210005 Orion Star A-series portable soft field case
$150.66
Usually ships in 3-5 days
Thermo Orion Star A-Series Armor STARA-AR Orion Star A-series portable meter armor
$104.16
Usually ships in 3-5 days
Thermo Orion Star A-Series pH Electrode Holder STARA-ESPH Orion Star A-series pH electrode holder for use with armor
$28.83
Usually ships in 3-5 days
Thermo Orion Electrode Storage Sleeve & Base 810017 Orion storage sleeve & base for 12mm x 120mm electrodes
$55.15
Usually ships in 3-5 days
Thermo Orion ROSS Ultra pH/ATC Triode 8107UWMMD Orion ROSS Ultra pH/ATC Triode with epoxy body, low maintenance gel, waterproof BNC & MiniDIN connector, 3m cable
$519.87
Usually ships in 3-5 days
Thermo Orion ROSS Ultra pH/ATC Triode Electrodes 8107BNUMD Orion ROSS Ultra pH/ATC Triode with epoxy body, low maintenance gel, waterproof BNC & MiniDIN connector, 1m cable
$505.92
Usually ships in 3-5 days
Thermo Orion Star Meter Universal Power Adapter 1010003 Orion universal power adapter for Star meters
$67.33
Usually ships in 3-5 days
Thermo Orion pH Calibration Buffer Pouches 910410-WA Orion pH 4 calibration buffer, (10) individual pouches
$34.50
Usually ships in 3-5 days
Thermo Orion pH Calibration Buffer Pouches 910710 Orion pH 7 calibration buffer, (10) individual pouches
$34.50
Usually ships in 3-5 days
Thermo Orion pH Calibration Buffer Pouches 911010 Orion pH 10 calibration buffer, (10) individual pouches
$34.50
Usually ships in 3-5 days
Thermo Orion Electrode Rinse Pouches 911110 Orion electrode rinse, (10) individual pouches
$33.85
Usually ships in 3-5 days
Thermo Orion Low Maintenance ORP/ATC Triode 9179BNMD Orion ORP/ATC Triode with epoxy body, low maintenance gel, waterproof BNC & MiniDIN connector, 1m cable
$395.25
Usually ships in 3-5 days
Thermo Orion ORP Standard 967961 Orion ORP standard, 60mL bottles, 5 pack
$90.95
Usually ships in 3-5 days
Orion Star A-series portable hard field case
Usually ships in 3-5 days
$143.22
Orion Star A-series portable soft field case
Usually ships in 3-5 days
$150.66
Orion Star A-series portable meter armor
Usually ships in 3-5 days
$104.16
Orion Star A-series pH electrode holder for use with armor
Usually ships in 3-5 days
$28.83
Orion storage sleeve & base for 12mm x 120mm electrodes
Usually ships in 3-5 days
$55.15
Thermo Orion ROSS Ultra pH/ATC Triode
8107UWMMD
Orion ROSS Ultra pH/ATC Triode with epoxy body, low maintenance gel, waterproof BNC & MiniDIN connector, 3m cable
Usually ships in 3-5 days
$519.87
Orion ROSS Ultra pH/ATC Triode with epoxy body, low maintenance gel, waterproof BNC & MiniDIN connector, 1m cable
Usually ships in 3-5 days
$505.92
Orion universal power adapter for Star meters
Usually ships in 3-5 days
$67.33
Orion pH 4 calibration buffer, (10) individual pouches
Usually ships in 3-5 days
$34.50
Thermo Orion pH Calibration Buffer Pouches
910710
Orion pH 7 calibration buffer, (10) individual pouches
Usually ships in 3-5 days
$34.50
Thermo Orion pH Calibration Buffer Pouches
911010
Orion pH 10 calibration buffer, (10) individual pouches
Usually ships in 3-5 days
$34.50
Orion electrode rinse, (10) individual pouches
Usually ships in 3-5 days
$33.85
Orion ORP/ATC Triode with epoxy body, low maintenance gel, waterproof BNC & MiniDIN connector, 1m cable
Usually ships in 3-5 days
$395.25
Thermo Orion ORP Standard
967961
Orion ORP standard, 60mL bottles, 5 pack
Usually ships in 3-5 days
$90.95

The waterproof, battery-operated Thermo Orion Star A321 portable pH meter stands up to the most demanding field applications to deliver the most advanced performance of any portable meter. Four AA batteries, included with purchase of the A321, provide over 800 hours of continuous operation so the instrument is ready when it's needed, where it's needed. The meter displays reliable pH, mV, RmV and temperature readings on a large, backlit LCD screen and automatically locks in stable readings.

Thermo Orion Star A320 series portable meters provide the largest storage capacity available for time-stamped data points, which can be conveniently uploaded to a PC through the meter's USB and RS-232 ports. Automatic or 1 to 5 point manual calibration makes instrument setup simple, while icons provide quick updates on battery life, electrode status and calibration information. The simple button layout and on-screen messages also assist with calibration and explain setup menu choices.

 

  • AUTO-READ function alerts user and locks on-screen readings when stable
  • Up to 5 point pH calibration with calibration editing
  • Automatic recognition of USA/NIST and DIN buffers
  • Easy to recall calibration slope data for procedure checks
  • Non-volatile memory holds up to 5000 data points
  • USB and RS-232 ports to upload data and update included data analysis software
  • Universal power supply or battery power option
  • Includes (4) AA batteries to provide over 800 hours of operation
  • Universal power adapter (sold separately) runs meter on AC power
  • Multilanguage interface supports English, Spanish, French, Italian, German and Chinese
  • IP67-rated waterproof housing (can be immersed up to one hour with no water incursion)
  • 3 year meter warranty
  • pH
  • Range: -2.00 to 20.00
  • Resolution: 0.1, 0.01, 0.001
  • Relative Accuracy: +/-0.002
  • Calibration Points: Up to 5
  • Calibration Editing: Yes
  • mV/RmV
  • Range: +/-2000.0 mV
  • Resolution: 0.1 mV
  • Relative Accuracy: +/-0.2mV or 0.05%, whichever is greater
  • EH ORP Mode: Yes
  • Temperature
  • Range: -5 to 105 C
  • Resolution: 0.1
  • Relative Accuracy: +/-0.1 C
  • Offset Calibration: 1 point
  • Datalogging
  • Number of Points: 5000 with time and date stamp
  • Log Function: Manual, ready (AUTO-READ), timed
  • Log Edit: Delete individual points, group of points or all
  • General
  • Display: Backlit LCD
  • Inputs: pH Electrode - BNC, ATC Probe - 8-pin mini-DIN
  • Outputs: RS-232, USB
  • Power Adapter: Universal AC, 100-240 VAC
  • Battery Power: 4 AAs, 800 hrs life
  • Environmental Requirements: 5 to 45 C and 5 to 85% relative humidity, non-condensing
  • Regulatory and Safety: CE, TUV 3-1, FCC Class A
  • IP Rating: IP67, waterproof
  • Warranty: 36 months (from date of purchase)
Questions & Answers
What is the difference between the Star A321 and the Star A221 portable pH meters?

Both meters have the same measuring ranges and feature an IP67-rated dust-proof and waterproof housing, The A321 features a 5000 point time/date stamped data log where the A221 features a 1000 point time/date stamped data log.

Can I change the recalibration alarm?

Yes, the calibration due alarm on the Star A321 can be set to a user-specified length of time.

Please, mind that only logged in users can submit questions

In The News

Buoys in the time of Covid: Delays to important information

In early 2020, Michigan found itself facing one of the worst outbreaks of Covid-19 in the country. Though it’s close to second nature now, businesses, schools and governments were suddenly forced to conduct business without close contact. Universities and research institutions had to pause some scientific research. Whatever was able to continue slowed to a crawl. Around the Great Lakes, a network of buoys monitors dozens of water quality parameters and lake conditions, reporting them in real time. This year, the monitoring season was cut a bit short as Covid-19 restrictions hit in the weeks before buoys were set to be deployed.

Read More

Gar-Bage Fish No More. It’s Time to Respect Gar

Gar are a mean-looking fish, which along with their reputation as predators has earned them disregard and persecution for a long time. But that’s starting to change and it’s about time, says Solomon David, who’s watching with hope as gar are increasingly valued for their role in their ecosystems and as sport fish. “These attitudes are shifting, but there’s plenty of work to do,” said David, who is an assistant professor of biological sciences at Nicholls State University in Louisiana. While understanding of gar’s scientific and recreational value is increasing, gar still face the harmful effects of old beliefs and new challenges.

Read More

Hypoxic Conditions in Lake Erie Impact Yellow Perch Population

Yellow perch are a species central to the culture and economy surrounding Lake Erie. With the largest commercial fishery and a prolific sportfishing industry, Lake Erie's yellow perch are a treasured study subject for environmental scientists. Daily bag limits and other public wildlife regulations rely heavily on the work of scientists like Ann Marie Gorman, one of the Fisheries Biologists responsible for coordinating ODNR ’s Central Basin Bottom Trawl Survey.  The survey, ongoing since 1990, conducts seasonal assessments of the bottom fish community in Erie. It aims to index annual recruitment and catch-at-age of yellow perch.

Read More