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Benchtop pH meter

  • Budget-friendly pH meter for simplified pH and ORP testing
  • Large 5” backlit display makes viewing measurements easy
  • Small meter footprint savesvaluable bench space in your lab
  • Date and time stamped logs support GLP compliance

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Measure pH or ORP simultaneously with mV and temperature using the Orion Lab Star PH111 pH/mV bench meter. Featuring a large, backlit display for easy viewability and small footprint to save bench space, this pH meter is ideal for simplified, budget-friendly lab testing.

Orion Lab Star PH111 pH Meter Features

  • Budget-friendly pH meter for simplified pH and ORP testing
  • Display shows pH, mV and temperature simultaneously for accurate data recording
  • Measure -2.000 to 18.000 pH, -2000.0 to +2000.0 mV and -5.0 to 105.0 °C or 23.0 to 221.0 °F to ensure comprehensive measurement capabilities
  • Perform one to five point pH calibrations, one point ORP calibrations and one point temperature adjustment calibrations for proficient SOP compliance
  • Large 5 inch backlit display makes viewing and recording measurements easy
  • Small meter footprint saves valuable bench space in your lab
  • Onscreen stabilizing and ready indicators help identify when readings are complete
  • pH electrode condition icon helps ensure reliable electrode performance
  • Date and time data stamped data and calibration logs support GLP compliance
  • View active pH, ORP and temperature calibration logs with date and time stamp to ensure accurate, reproducible measurements
  • Use 500-point data log with date and time stamp to record key measurements
  • Output data and calibration logs to a printer or computer for long-term data storage

Meter and Meter Kits

  • LSTAR1115 is the standard pH meter kit option, for common pH samples such as drinking water, tap water, buffers (non-TRIS) and general purpose student use
  • LSTAR1116 is the easy-to-clean bio pH meter kit option, for pH samples containing TRIS buffers, proteins, sulfides, halides or other components that can interfere with silver-chloride; included refillable pH electrode is easy-to-clean and restore
  • LSTAR1117 is the low-maintenance bio pH meter kit option, for pH samples containing TRIS buffers, proteins, sulfides, halides or other components that can interfere with silver-chloride; included gel-filled pH electrode is low-maintenance and easy to operate
  • LSTAR1118 is the difficult sample pH meter kit option, for pH samples that are thick, viscous or semi-solid including foods, beverages, wastewaters, emulsions, soils, slurries, suspended solids or sludges
 
Item No.Unit SizeDescriptionIncludes
LSTAR1115EachOrion Lab Star PH111 pH/mV bench meter standard kit9157BNMD refillable epoxy-body pH/ATC electrode 916099 pH 4/7/10 buffer, storage and cleaning solution 60 mL kit meter with electrode stand, PC cable, universal power adapter
LSTAR1116EachOrion Lab Star PH111 pH/mV bench meter easy-to-clean bio kitGD9156BNWP double junction refillable epoxy-body pH electrode 927007MD stainless steel ATC temperature probe 916099 pH 4/7/10 buffer, storage and cleaning solution 60 mL kit meter with electrode stand, PC cable, universal power adapter
LSTAR1117EachOrion Lab Star PH111 pH/mV bench meter low-maintenance bio kitGD9106BNWP double junction gel-filled epoxy-body pH electrode 927007MD stainless steel ATC temperature probe 916099 pH 4/7/10 buffer, storage and cleaning solution 60 mL kit meter with electrode stand, PC cable, universal power adapter
LSTAR1118EachOrion Lab Star PH111 pH/mV bench meter difficult sample kit9165 BNWP Sure-Flow refillable epoxy-body pH electrode 927007MD stainless steel ATC temperature probe 916099 pH 4/7/10 buffer, storage and cleaning solution 60 mL kit meter with electrode stand, PC cable, universal power adapter
ParameterDescription
pH
Range-2.000 to 18.000 pH
Resolution0.1, 0.01, 0.001 pH
Relative accuracy±0.005 pH ± 1 LSD
Calibration points1 to 5 points
Calibration methodAutomatic buffer recognition with manual buffer entry option
Calibration pH buffer sets

USA: 1.68, 4.01, 7.00, 10.01, 12.46

DIN: 1.68, 4.01, 6.86, 9.18, 12.46

Slope displayYes
mV / ORP
Range±2000 mV
Resolution0.1 mV
Relative accuracy±0.2 mV or ±0.05 % of the reading, whichever is greater
Calibration points1 point
Offset adjustmentUp to ±250 mV
Temperature
Range-5.0 to 105.0 ºC, 23.0 to 221.0 ºF
Resolution0.1 ºC, 0.1 ºF
Relative accuracy±0.3 ºC, ±0.5 ºF
Calibration points1 point
Offset adjustmentUp to ±5 ºC
Features
Display5” backlit LCD
Time and dateYes
Time format12 hour AM/PM or 24 hour
Date formatSelectable, DD-MM-YYYY or MM-DD-YYYY
Read typesContinuous, Auto-Read, Timed
Timed interva5 seconds to 60 minutes
Data log 500 sets with time and date
Calibration logActive pH, ORP, temperature with time and date
Calibration alarmYes, 1 to 168 hours or off
Sleep modeYes, optional
Self-testAutomatic with startup
MemoryNon-volatile
InputBNC, ATC
Data outputComputer or printer
Data output formatCSV or print
Warranty3 years
CertificationsCE, cTUVus, FCC Class B, CES-001, KC, RCM
EnclosureIP-54
Power100-240 VAC, 50-60Hz, 9 DC adapter, 1.3A
Dimensions (L x W x H)

198.3 mm x 155.2 mm x 61.7 mm

7.81” x 6.11” x 2.43”

Weight700 grams, 1.54 lbs
Environmental conditions
Environmental conditionsIndoors
AltitudeUp to 2,000 Meters
Operating temperature5°C to 45°C
Operating relative humidity5 to 85%, non-condensing
Storage temperature-20°C to 60°C
Storage relative humidity5 to 85%, non-condensing
Mains fluctuation±10% of range (100-240VAC)
Installation categoryII
Pollution degree2
Protection classIII