Thermo Orion 266S Intrinsically Safe Advanced pH Meter

Thermo Orion 266S Intrinsically Safe Advanced pH Meter


Thermo Orion 266S intrinsically safe advanced portable pH meter


  • Intrinsically safe and waterproof meter
  • Bi-directional RS232 and computer software for easy data transfer
  • 3 year meter warranty
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Orion Intrinsically Safe Meters are designed for use where non-sparking equipment is desired, these meters carry US intrinsically safe approval rating by Factory Mutual (FM).

The Thermo Orion 266S is a portable pH/mV/temperature meter with advanced features for GLPdoc. The 100 point datalogger with time and date stamp documents readings. The manual, interval, or event-controlled RS232 and the included software program simplify data collection and remote operation on a computer. Other advanced features include manual or autocalibration, recalibration timer option, clock, calibration printout, and memory.

The Thermo Orion 266S is supplied with a built-in quiver, neck strap, RS232 cable, and data transfer software. The meter and electrode package contains a rugged, low-maintenance Orion Triode 3-in-1 combination pH electrode.
Notable Specifications:
  • pH
  • Range: -2.00 to 16.00
  • Resolution: 0.1, 0.01
  • Accuracy: +/-0.01
  • Auto-Buffer Recognition: Dependent on buffer set (7 pre-programmed sets)
  • Calibration Points: 3
  • ORP
  • Range: +/-1300.0 mV
  • Resolution: 0.1 mV
  • Accuracy: +/-0.1% of value +0.3 mV
  • Temperature
  • Range: -20 to 120 C
  • Resolution: 0.1 C
  • Relative Accuracy: +/-0.3 C
  • General
  • Display: Custom LCD
  • Inputs: Waterproof DIN, 4mm Banana
  • Power Requirements: 3 x alkaline AA batteries
  • Agency Approvals: CE, FM, Ex(Intrinsically Safe)
  • Environmental Requirements: -10 C to 55 C
What's Included:
  • (1) Thermo Orion 266S
  • (1) Operations manual
Image Part # Product Description Price Stock Order
Thermo Orion 266S Intrinsically Safe Advanced pH Meter 0266S2 266S intrinsically safe advanced portable pH meter
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Thermo Orion 266S Intrinsically Safe Advanced pH Meter 0266S0 266S intrinsically safe advanced portable pH meter with 9109WP pH/ATC triode
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Thermo Orion 266S Intrinsically Safe Advanced pH Meter 0266S3 266S intrinsically safe advanced portable pH meter with 9109WP pH/ATC triode, neck strap, field case, electrode holder, stand, pH buffers, beakers, RS232 cable, and software
Drop ships from manufacturer
Image Part # Product Description Price Stock Order
Thermo Orion pH/ATC Triode Electrodes 9109WP Orion pH/ATC Triode with epoxy body, low maintenance gel, waterproof EDIN & banana plug connector, 1m cable
Drop ships from manufacturer
Thermo Orion All-in-One 475mL pH Buffer Kit 910199 Orion All-in-One pH buffer kit, (1) 475mL bottle ea. of pH 4, 7, 10; storage solution; storage bottle
Drop ships from manufacturer

Questions & Answers

| Ask a Question
What type of power supply does this meter use?
The Thermo Orion 266S runs on three (3) AA alkaline batteries.
What is the difference between the 261S and the 266S pH meters?
The 266S Intrinsically Safe Advanced pH meter includes a 100 point data logger with time/date stamps and data transfer capability via a RS-232 port.

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