Simple pH meter for field measurements.


  • Graphic display with on-screen instructions
  • 50-set memory (pH, temp, date and time stamp)
  • Automatic calibration and buffer recognition
  • IP67 waterproof housing
  • User-replaceable single- or double-junction electrodes

Handheld pH Meters Product Description

The model pH100A handheld pH meters are part of the EcoSense family of products. These handheld pH meters are precision tools that measure pH, mV, and temperature. Whether the need is a single monitoring instrument for temperature and pH or mV for wastewater, surface water, or aquaculture, the pH100A handheld pH meter is up to the task. The low overall cost of ownership includes an economical list price, competitively priced handheld pH meter probes compared to other manufacturers, and rugged, reliability limiting down time. Designed specifically for spot sampling applications, the pH100A handheld pH meters will fill the need for simple, one-handed operation instrumentation. The handheld pH meter is available with pH, mV, ORP, and ATC (Automatic Temperature Compensation) probes. The pH100A handheld pH meters also allow you to connect a flat-tipped, piercing-tipped, and lab grade pH probe for additional applications.

A built-in microprocessor stores, calculates and compensates for all parameters for the handleheld pH meters related to pH determinations including pH electrode temperature characteristics, electrode slope deviations, and buffer solutions. The handheld pH meters are waterproof (IP67) when the connector cap is installed. The mechanical touch keys of the handheld pH meters are highly reliable with tactile and audio feedback. The handheld pH meters use one 9V battery which provides up to 1000 hours of battery life. The handheld pH meters offer a low battery indicator and an automatic shutoff feature to help you maintain your instrument. Re-calibration is not required when power is restored to the handheld pH meter. The front of the handheld pH meter has a large LCD that displays pH or mV and temperature simultaneously along with user prompts and mode indicators. The handheld pH meters prompt the user through calibration and measurement procedures. An AUTOLOCK feature for both pH and mV measurements enables the handheld pH meter to automatically sense the end point and “lock” the display to indicate the end point value of a measurement. The pH100A handheld pH meters can also be used in non-AUTOLOCK mode. AUTOLOCK and user prompts help eliminate most errors in determining pH and mV values, resulting in precise, repeatable, error-free measurements from your handheld pH meter. Other handheld pH meter features include electrode offset recognition, electrode slope recognition, electrode efficiency display, built-in buffer coefficients, automatic or manual temperature compensation, 50 data set memory and 50/60 Hz AC noise rejection. This handheld pH meter is universal and user-friendly for field, industrial, and laboratory applications. This line of handheld pH meters comes with a one year instrument and six month electrode and cable warranty.

Handheld pH Meters Specifications

pH Range: -2.00 to 16.00 pH
mV Range: -1999 to 1250 mV
Temperature Range: 14.0 to 248 °F (-10.0 to 120 °C)
pH Accuracy: ±0.1%,±2 lsd
mV Accuracy: ±0.1%,±1 lsd
Temperature Accuracy: ±0.9 °F (±0.5 °C)
pH Resolution: 0.01 pH
mV Resolution: 1 mV
Temperature Resolution: 0.2 °F (0.1 °C
ATC Probe: Thermistor, 10k? at 77 °F (25 °C)
pH Temperature Compensation: Auto/Manual 14.0 to 248 °F (-10.0.0 to 120.0 °C)
pH Buffer Recognition: (4.01, 7.00, & 10.01) or (4.00, 6.86, & 9.18)
pH Calibration Temperature: 32 to 140 °F (0 to 60 °C)
pH Offset Recognition: ±90 mV at pH 7.00 or 6.86
pH Slope Recognition: ±30% at pH 4.00, 4.01, 9.18, or 10.01
Display: LCD
Calibration Back-up: Yes
Audio Feedback: Yes, on all touch keys
Autolock: Yes
Data Memory: 50 data set reviewable memory
Operation Temperature Range: 32 to 122 °F (0 to 50 °C)
Operation Relative Humidity Range: up to 95%
IP Rating: IP 67
Power: One 9V battery
Battery Life: ~1000 hours or greater (low battery indicator)
Size (LxWxD): 7.37x3x1.5 inch (18.7×7.6×3.8 cm)
Weight: 0.6 lb (270g)
Warranty: 1 year meter and six months electrode-cable assembly
Test certificates: CE

Handheld pH Meters Options

pH100CCA-01 Handheld pH Meter Kit (PN# 606075)
Includes handheld pH meter, 3.3 ft (1 m) cable with attached pH/temperature probe, and hard sided case.

pH100CCA-04 Handheld pH Meter Kit (PN# 606033)
Includes handheld pH meter, 13.1 ft (4 m) cable with attached pH/temperature probe, and hard sided case.


PH100A Handheld pH Meter (PN# 606075)
Handheld pH meter only.

100-1 Handheld pH Meter Cable Assembly (PN# 605377)
Includes 3.3 ft (1 m) cable with attached pH/temperature field probe.

100-4 Handheld pH Meter Cable Assembly (PN# 605378)
Includes 13.1 ft (4 m) cable with attached pH/temperature field probe.

110-1 Handheld pH Meter Cable Assembly (PN# 605374)
Includes 3.3 ft (1 m) cable with attached pH laboratory probe.

111-1 Handheld pH Meter Cable Assembly (PN# 605080)
Includes 3.3 ft (1 m) cable with attached pH piercing double junction probe.

112-1 Handheld pH Meter Cable Assembly (PN# 605081)
Includes 3.3 ft (1 m) cable with attached pH flat glass double junction probe.

115-1 Handheld pH Meter Cable Assembly (PN# 605376)
Includes 3.3 ft (1 m) cable with attached ORP laboratory probe.

130-1 Handheld pH Meter Cable Assembly (PN# 605375)
Includes 3.3 ft (1 m) cable with attached temperature probe.

160 Handheld pH Meter pH simulator electrode (PN# 605380)
Used to confirm proper handheld pH meter calibration.  NOTE: Calibration with the pH simulator calibrates only the handheld pH meter – NOT the pH meter and probe.

485 Handheld pH Meter Carrying Case (PN# 605139)
Soft sided carrying case.

Handheld pH Meter Carrying Case (PN# 606031)
Hard plastic carrying case with form fitted foam insert for pH100A.

440 Handheld pH Meter Cable Weight Kit (PN# 605409)

3824 Assorted pH buffers case (6 pints – 2 of each buffer 4, 7, and 10 (PN# 603824)


PHT-810 pH Tester

EC500 Handheld Waterproof pH/Conductivity Tester
Includes electrode, protective sensor cap, sample cup with cap, four 1.5V SR44W batteries, and a 48 inch (1.2m) neckstrap.

EC510 Handheld Waterproof pH/Conductivity Tester Kit
Includes an EC500 portable conductivity meter with sensor, 84uS, 1413uS, 12880uS calibration standards, pH buffer pouches (1 each of 4, 7, 10pH plus rinse solution), weighted base, protective sensor cap, 3 sample cups, four 1.5V SR44W batteries, carrying case, and a 48 inch (1.2m) neckstrap

2AA112 pH 3110 Portable Field pH meter w/case & accessories

Lab 850 Benchtop pH meter

ProLab 1000 Bench top pH meter

ProLab 3000 Laboratory pH meter

inoLab® 7110 wastewater pH meter

WQ201 pH Sensor

WQL-pH pH Datalogger
Included: pH datalogger, PC-program WQL-Log, USB cable, Li battery, shackle, and hex wrench.

WQ Water Quality Sensors