THERMO SCIENTIFIC Orion Star A1215 Kit Portable pH Meter

The waterproof, battery-operated Thermo Orion Star A121 portable pH meter stands up to the most demanding field applications and delivers over 2,000 hours of continuous operation. The meter displays pH, mV and temperature readings on a large LCD screen and automatically locks in stable readings.

Automatic or 1 to 3 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 3 point pH calibration
Automatic recognition of USA/NIST and DIN buffers
Easy to recall calibration slope data for procedure checks
Non-volatile memory holds up to 50 data points
Universal power supply or battery power option
Includes (4) AA batteries to provide over 2000 hours of operation
Universal power adapter (sold separately) runs meter on AC power
IP67-rated waterproof housing (can be immersed up to one hour with no water incursion)

Specifications: 
pH
Range: -2.00 to 16.00
Resolution: 0.1, 0.01
Relative Accuracy: +/-0.01
Calibration Points: Up to 3
mV
Range - mV: +/-1600.0 mV
Range - RmV: +/-1999.9 mV
Resolution: 0.1 mV
Relative Accuracy: +/-0.2mV or 0.05%, whichever is greater
Relative mV Calibration: Yes
Temperature
Range: -5 to 105 C
Resolution: 0.1
Relative Accuracy: +/-0.1 C
Compensation: Auto or Manual
Offset Calibration: Yes
Datalogging
Number of Points: 50
Log Function: Manual, Automatic with AUTO-READ
Log Edit: Delete last reading or all
General
Display: Custom LCD
Inputs: pH Electrode - BNC, ATC Probe - 8-pin mini-DIN
Power Adapter: Universal AC, 100-240 VAC
Battery Power: 4 AAs, 2000 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, splashproof and dustproof