Thermo Scientific™

Orion Star™ A121 Portable pH Meter

Take simple, routine pH, mV and temperature measurements with the Thermo Scientific™ Orion™ Star A121 Portable pH Meter, an easy-to-use and budget-friendly instrument for basic pH analysis in the field. Perform up to a three point pH calibration with easy recall of calibration points and slope. Quickly navigate setup menus and ensure consistent calibrations using the simple keypad layout and on-screen text prompts. This waterproof meter has an IP67-rated housing for rugged protection in outdoor environments.

Error loading your content!

  Catalog number Price ({{currency}}) Availability Qty
{{product.sku}}
also known as {{product.formattedSku}} 
{{product.availability.message}} Add To Cart

{{addItemToList.successMessage}} {{addItemToList.listName}}


Back to top

Description

Thermo Scientific Orion Star A121 portable pH meters are a simple, economical solution for your routine outdoor sample analysis. Featuring an emphasized measure key, selectable read modes and measurement stability indicator, our basic Orion Star A121 pH meters are designed to deliver measurements you can trust at an affordable price.
  • Measure pH, mV or relative mV with temperature
  • Perform up to a three point pH calibration with automatic buffer recognition or manual buffer entry
  • Simplified, easy-to-read display shows main measurement with temperature, stability indicator and electrode condition icon
  • User-friendly operation with basic calibration text prompts
  • Easily recall calibration data for procedure checks
  • Non-volatile memory preserves 50 point internal data log and meter settings, even with loss of power
  • Flexible power options with AA batteries or optional universal power adapter
  • IP67-rated housing is waterproof for rugged field operation
  • Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
  • Meters offer CE, TUV 3-in-1 and FCC Class A certifications and 3-year replacement warranty

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.



orion-warranty

Warranty registration form

Register your Orion, ROSS, AQUAfast and AQUASensors products.
Warranty registration 

Documents

Manuals & protocols