• Large, informative screen clearly shows the main information, including pH or mV reading, temperature, meter mode, calibration information and power source
• Don’t miss a reading — AUTO-READ* locks in the stable reading on your screen and ready indicator alerts when readings are stable
• Up to three 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
• Included electrode arm and newly-designed probe holder make it easier to maintain and place probes into samples
• Plug the meter into almost any power outlet with the included universal power adapter, or use four AA batteries (sold separately) to run the meter on DC power
• The IP54-rated housing can handle splashes and can be wall-mounted if table space is a problem

Includes: Orion STAR* A111 pH Benchtop Meter, Part no. STARA1110, includes electrode arm with redesigned holder and universal power adapterOrion STAR* A111 pH Benchtop Meter Kit, Part no. STARA1115, includes 9157BNUMD Orion Triode* 3-in-1 pH/ATC probe; Solution kit (60mL each of pH 4, 7 and 10 buffers; storage solution and cleaning solution); electrode arm with redesigned holder and universal power adapterOrion STAR* A111 pH Benchtop Meter Kit, Part no. STARA1116, includes GD9156BNWP Orion Green electrode; 927007MD Stainless Steel ATC Probe; electrode arm with redesigned holder and universal power adapterWarranty and Service Offering: Three-year meter replacement warranty

Specifications
pH Range	-2.00 to 16.00
pH Resolution	0.1, 0.01
pH Relative Accuracy	±0.01
pH Calibration Points	up to 3
mV Range	mV:±1600.0 mV ;RmV: ±1999.9 mV
mV Resolution	0.1
mV Relative Accuracy	±0.2 mV or ±0.05% of reading whichever is greater
Temperature Range	-5° to 105°C
Temperature Resolution	0.1
Temperature Relative Accuracy	±0.1
Temperature Compensation
Inputs	BNC, 8-pin mini-DIN
Battery Power	Four AA (sold separately)
Battery Life	2000 hours