Thermo Orion® Star A121 pH Portable Meters

  • Large LCD displays pH or mV readings along with temperature, and shows meter mode, calibration information and battery life.
  • Simple button layout and onscreen messages help with calibration and setup menu choices.
  • AUTO-READ™ locks in the stable reading and ready indicator alerts when readings are stable.
  • Up to 3-point pH calibration.
  • Automatic recognition of USA/NIST and DIN buffers.
  • Easily recall calibration slope data for procedure checks.
  • Non-volatile memory holds up to 50 data points.
  • Waterproof. IP67-rated housing.
  • Log function: manual or automatic with AUTO-READ™. Log edit: delete last reading or all.
  • Inputs: (pH electrode) BNC; (ATC probe) 8-pin mini-DIN.
  • Power: 4 x AA batteries (included) or 120V (optional AC adapter). Batteries provide up to 2000 hours of use.
  • Warranty: 3 year meter replacement.

  • pH range: -2.00 to 16.00 ±0.01.
  • mV range: ±1600.0mV ±0.2mV or ±0.05% of reading, whichever is greater.
  • RmV range: ±1999.9mV ±0.2mV or ±0.05% of reading, whichever is greater.
  • Temperature range: -5.0 to 105.0ºC ±0.1. ATC or manual temperature compensation. Temperature offset calibration.

Manufacturer : Thermo Orion Inc

Please note: The prices shown may not reflect those specific to your company or organization. Please log in to continue.

Mouse over for a larger view

Scroll bar to see more details
Cat.#DescriptionIncludesMfg.#PriceQuantityEstimated Availability
639-415-02Star A121 pH Portable MeterFour AA batteriesSTARA1210$1,032.81 EA  
Ships within one week
639-415-04Star A121 pH Portable Meter KitOrion Triode 3-in-1 pH/ATC probe, solution kit (60ml each of pH 4, 7 & 10 buffers, storage solution and cleaning solution), rinse solution (10 pouches), protective armor with electrode holder, hard carrying case and four AA batteriesSTARA1215$1,751.75 EA  
Ships within one week

Parts & Accessories:

Cat.#DescriptionMfg.#PriceQuantityEstimated Availability
639-890-30Hard carrying case for A-series portable metersSTARA-CS$298.10 EA  
Ships from stock
639-890-32Armor for Orion Star A-series portable meters, includes electrode holders for pH, conductivity and DO probesSTARA-AR$215.68 EA  
Ships within one week
639-890-33pH electrode holder for Star A-series armorSTARA-ESPH$60.15 EA  
Ships within one week
639-890-34Conductivity and DO prove holder for Star A-series metersSTARA-ESCD$60.15 EA  
Ships within one week
639-890-35AC adapter, 120V1010003$140.10 EA  
Ships within one week
639-890-37pH 4.01 buffer pouches910410$73.82 PK / 10  
Ships within one week
639-890-38pH 7.00 buffer pouches910710$73.82 PK / 10  
Ships within one week
639-890-39pH 10.01 buffer pouches911010$73.82 PK / 10  
Ships within one week
639-890-40pH rinse solution pouches911110$73.30 PK / 10  
Ships within one week
640-315-10mini DIN connector; Glass fiber junction; Refillable9157BNMD$813.62 EA  
Ships within 2 weeks

Image preview