Auto-calibration Bench pH/mV Meter

A microprocessor based pH, mV and temperature benchtop meter featuring an extra large LCD that displays pH or mV and temperature simultaneously. The extra large LCD (6.25” x 1.5”) can be viewed from a distance in a lab.

This instrument can measure pH from -2.00 to 16.00 and can be calibrated at 1 or 2 points using 5 standard buffers. During calibration, prompts on the LCD guide the user through the process. Temperature compensation of the pH measurement can be automatic or manual between -9.9 to 120°C. The dual mV range (±399.9 or ±2000 mV) can be used for ISE measurements, ORP measurements or to check the offset and slope of the pH electrode. Other features include a measurement memory function and a reading stability indicator.

The meter is supplied with a glass body combination pH electrode, temperature probe, electrode holder, power adapter and instruction manual. Buffer solutions are included to get you started. The meter has a 2-year guarantee (6 months for the electrode and probe).
  • Auto-calibration Bench pH/mV Meter
  • Auto-calibration Bench pH/mV Meter
  • Auto-calibration Bench pH/mV Meter
  • Auto-calibration Bench pH/mV Meter

Technical Specification

pH Range -2.00 to 16.00 pH pH Resolution 0.01 pH
pH Accuracy (@ 20°C) ±0.01 pH pH Calibration Automatic 1 or 2 points with 5 automatically recognised buffers (ph 4.01, 6.86, 7.01, 9.18, 10.01)
Temperature Probe HI 7669/2W complete with 1 metre cable (supplied) Temperature Compensation (pH readings) Automatic (with HI 7669/2W) or manual from -9.9 to 120°C
°C Range -9.9 to +120°C °C Resolution 0.1°C
°C Accuracy (@ 20°C) ±0.5°C (0.0 - 100.0°C); ±1°C (outside) (excluding probe error) mV Range ±399.9 (ISE) / ±2000 (ORP)
mV Resolution 0.1 (ISE) / 1 (ORP) mV Accuracy (@ 20°C) ±0.2 (ISE) / ±1 (ORP)
pH Electrode HI 1131B, glass body, single junction, refillable, BNC connector, 1 metre cable (supplied) Input Impedance 10^12 Ohm
Power Supply 12V DC (mains adapter supplied) Environment 0 to 50°C / RH max 95%
Dimensions 240 x 182 x 74 mm Weight 1.1 Kg (meter) / 2.5 Kg (kit with holder)

Product Range

  Product Code Price (+VAT)
Auto-calibration Bench pH/mV Meter 135-7031 This product is currently unavailable
Spare Combination pH Electrode 116-0121 £120.50 In Stock
Spare Temperature Probe 116-0218 £65.10 In Stock
Buffer calibration kit has 10 sachets, 5 each pH 4.01 & pH 7.01.