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Thermo Scientific™ Orion Star™ A121 Portable pH Meter

Catalog No. p-4529663 Shop All Thermo Scientific Products
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This item is not returnable. View return policy
MTO (Made-To-Order) item. This item is subject to the following cancellation policy: This item may be cancelled within 10 days of order placement otherwise is not returnable for credit
This item is not returnable. View return policy
MTO (Made-To-Order) item. This item is subject to the following cancellation policy: This item may be cancelled within 10 days of order placement otherwise is not returnable for credit

Take simple pH and temperature measurements with our portable pH meter with easy operation for basic field testing.

Take simple, routine pH, mV and temperature measurements with the Thermo Scientific™ Orion Star™ A121 Portable pH Meter. This meter is an easy-to-use and budget-friendly instrument for basic pH analysis in the field. Perform up to a 3 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.

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 3 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
  • 3-year replacement warranty

Specifications

Description

Orion Star A121 portable pH meter

Accuracy (Temperature)

±0.1°C

Accuracy (pH)

±0.01

Data Management Details

Internal Data Point Memory

Accuracy (mV)

±0.2 or ±0.05%, whichever is greater

Outputs

None

Includes

Star A121 pH meter, 4 AA batteries

Measurement Modes

pH, mV, Relative mV with Temperature

Calibration

pH, relative mV (RmV) and temperature

Range (pH)

-2 to 16

Resolution (pH)

0.01, 0.1

Range (mV)

±1600.0

Resolution (mV)

0.1mV

Calibration Points

1 to 3

Temperature Range (Metric)

-5°C to +105°C

Temperature Range (English)

22.0°F to 221.0°F

Resolution (Temperature)

0.1°C, 0.1°F

Temperature Selection

Manual or automatic with ATC temperature probe

Temperature Probe Calibration

1 point temperature offset calibration

Display Type

LCD

Memory

Non-volatile memory preserves log and settings

Data Points

50

Log Function Type

Automatic with Auto-Read Measure Mode, Manual with Continuous Measure Node

Inputs

BNC (pH or ORP electrode), 8 pin MiniDIN (ATC temperature probe)

Certifications/Compliance

CE, TUV 3-1, FCC Class A

IP Rating

IP-67

AC Adapter

Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)

Dimensions (L x W x H)

24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)

Weight (Metric)

0.5 kg

Weight (English)

2 lb.

Warranty

3 Year Meter Warranty

Keypad

Simple with highlighted measure key, scroll and shortcut keys

Model

Orion Star A121 Portable pH/mV/RmV/Temperature Meter

Power Supply

4 AA batteries (included) or universal AC adapter (sold separately)

Probe Type

pH electrode, ORP electrode, ATC temperature probe (purchase separately)

Languages

English

Range (Relative mV)

±1999.9mV

Relative Humidity Range

5 to 85%, non-condensing

Isopotential Point

7.00pH

Stability

Smart Stability and Smart Averaging

Temperature (English) Operating

41°F to 113°F (ambient)

Temperature (Metric) Operating

5°C to 45°C (ambient)

Channels

1

Battery Type

4 x AA

Battery Life

2000 hr.

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