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Spectronics India

Microprocessor pH Meters

SI-144 Microprocessor pH Meter
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Product Details

Resolution 0.01 PH
Brand Name Spectronics India
Model No SI-144
Function Ph or Mv & Temperature Simultaneously
Display 16 character x 2 lines Alphanumeric BL LCD
Power Supply 230 V ± 10% 50 Hz AC
pH Range 0 to 14 pH
Accuracy ± 0.01 pH ± 1 digit Slope adjustment 80% to 120% By default 100% Temp. compensation 0 to100 ˚C Auto with temp probe / Manual
Slope Adjustment 80% to 120% By default 100%
Temp. Compensation 0 to100 C Auto with temp probe / Manual with keys
Auto Buffer Recognition 4.00 pH, 7.00 pH,9.20
pH Calibration Auto as manual, 3 point / 2 point (Programmable)
mV Range -1999 mV to +1999
mV Resolution 1
mV Accuracy ± 0.1% ±1 digit
Calibration Three point manual Temperature
Range -50.0 C to 200 C

The diverse range of Microcontroller Based Digital pH Meter catered by us is of top-notch quality and is manufactured using quality raw material and advanced technology. Our experts and engineers are capable enough to maintain pace with the latest trend of the marketplace. Further, we can custom design the range as per the specifications of the clients in the stipulated time frame.


  • Combined pH Electrode
  • Instruction Manual
  • Buffer Solutions  
  • Dust cover   
  • Electrode Stand  
  • Temp Probe

Salient features

  • 16 x2 lines LCD Display
  • Measures pH, ,mV & Temp.
  • Auto Buffer Recognition facility
  • Storage upto 1000 samples
  • Printer attachment facility
  • Available  in 2 Point/3Point Calirbation

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SI-146 Microprocessor pH Meter
Get Best Price

Product Details

Weight 220 X 190 X 100mm : 1 Kg. Approx. 1 Kg. With Accessory 2 Kg. Approx.
Model No. SI-146
Display 16 x 2 LCD Display
pH Range 0 to 14.00 mV ±399.9mV : ± 2000mV Temp. 0 to 120.0°C
pH Resolution 0.01pH mV 0.1 (±399.9mV): 1 ± 2000mV
pH Accuracy ±0.01 mV 0.1 (±399.9mV) : 1 ± 2000mV
Temperature Automatic/Manual
pH Calibration Automatic 2 Point memorized Buffer Value
pH Electrode Glass Body, Single junction, BNC Connector, 1m Cable (included)
Temperature Probe PT 100 with 1m Cable
Input Impedance 1012 Ohm
Environment 0 to 50°C ; RH max 95%
Power 220V ±10%  50 Hz with in-built stabilizer

The  is an advanced microprocessor based pH/mV bench meter that is easy to operate, precise and inexpensive making it perfect for Quality Control  laboratory applications, as well as a wide range of other measurement applications.

The performs pH, mV and temperature measurements, and the LCD display shows pH (or mV) or temperature values. It come equipped with 2 memorized buffers for pH calibration (pH 4.00 and  7.00) and the automatic recognition system eliminates calibration error. The user is guided through the calibration process with simple instructions with on the display.'

Salient Features

  • Measurement :   pH, mV  & Temperature
  • New Bench top Design
  • 16x2 LCD Display
  • Automatic Calibration
  • 2 Standard Buffers
  • ATC Facility


  • Combination pH
  • Electrode,
  • Temp. Probe
  • Buffer 4pH & 7pH
  • Dust cover
  • Stand for Electrode.

Yes! I am interested