MODEL SI-139
Digital PH Meter
Precision Digital PH Meter designed for accurate and reliable laboratory analysis.
Key Specifications
Model
139 B Table Model
Display
3½ Digit LED
Range pH
0 to 14.00
Range mV
0 to + 1999
Overview
The Digital PH Meter from Spectronics India is engineered to deliver high-stability analytical performance for laboratory and quality-control environments. Manufactured using premium raw materials and advanced digital technology, this instrument ensures accuracy, ease of use, and long-lasting durability. It is an ideal choice for research, educational, and industrial applications.
Salient Features
What makes the SI-139 stand out
Highly stable & accurate measurements
User-friendly digital interface
Robust construction for laboratory use
Reliable and consistent performance
Backed by Spectronics India quality assurance
Technical Specifications
Complete specification table
| Model | 139 B Table Model |
| Display | 3½ Digit LED |
| Range pH | 0 to 14.00 |
| Range mV | 0 to + 1999 |
| Resolution pH | 0.01 |
| Resolution mV | 1 |
| Accuracy pH | ±0.01 |
| Accuracy mV | ±1 |
| Temperature | 0 to 100°C |
| Compensation | Manual 0 to 100°C |
| Slope Correction | 80 to 120% |
| Power | 220V ±10% 50 Hz with in-built stabilizer and Rechargeable Battery. |
| Dimensions | 275 x 175 X 76 |
Accessories
What comes with it
Standard Accessories Included
Instruction Manual
Dust Cover
Power Cord
