Labman
Portable pH Meter LMPH1P (Auto Calibration, USB Interface)
Portable pH Meter LMPH1P (Auto Calibration, USB Interface)
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Portable pH Meter LMPH1P is designed for accurate pH, mV, and temperature measurement in laboratory, industrial, educational, and field testing applications. The compact handheld instrument combines portability with stable analytical performance, making it suitable for routine water quality analysis and environmental monitoring.
The meter supports automatic calibration with USA and NIST buffer standards and allows 1 to 3-point calibration for improved measurement accuracy across different pH ranges. Automatic electrode diagnosis helps users monitor electrode condition and determine when replacement is required.
LMPH1P features automatic and manual temperature compensation to ensure accurate readings over varying sample temperatures. The instrument also includes auto-read endpoint detection, which senses stable measurement conditions and locks the final reading for consistent analysis.
An LCD display with white backlight provides clear visibility during operation, while internal memory stores up to 100 data sets for easy recall and documentation. USB connectivity allows data transfer and external power adaptor connection.
The portable design operates on AA batteries or DC power adaptor, making the instrument suitable for both laboratory bench use and on-site field applications. Automatic shutdown and auto power-off functions help conserve battery life during extended operation.
LMPH1P is widely used in water treatment plants, environmental testing laboratories, educational institutions, food and beverage testing, aquaculture, and routine pH monitoring applications.
Key Features
Portable pH, mV, and temperature measurement
1 to 3-point automatic calibration
Supports USA and NIST pH buffer standards
Automatic electrode diagnosis function
Automatic and manual temperature compensation
Auto-read endpoint detection for stable measurements
LCD display with white backlight
USB communication interface
Internal memory for up to 100 data sets
Battery and DC adaptor operation
Automatic shutdown and power-saving functions
Compact portable design with carrying case
Technical Specifications
| Parameter | Specification |
|---|---|
| pH Range | -2.00 to 20.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.01 pH |
| pH Buffer Options | 1 to 3 Points Calibration, USA (pH 4.01/7.00/10.01) / NIST (pH 4.01/6.86/9.18) |
| mV Range | ±1999 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ±1 mV |
| Temperature Range | 0 to 105°C / 32 to 221°F |
| Temperature Resolution | 0.1°C / 0.1°F |
| Temperature Accuracy | ±0.5°C / ±0.9°F |
| Temperature Compensation | 0 to 100°C / 32 to 212°F, Manual or Automatic |
| Hold Function | Manual / Auto-read Measurement Endpoint |
| Display | LCD with White Backlight |
| Interface | USB |
| Connector | BNC |
| Carrying Case | Available |
| Auto OFF | 30 Minutes, If Not in Use |
| Memory | 100 Data Sets |
| Power Supply | 3 × 1.5V AA Batteries or 5V DC Power Adaptor |
| Battery Life | Approximately 150 Hours Without Backlight |
| Dimensions (L×W×H) | 340 × 90 × 300 mm |
| Weight | 2 kg |
Applications
Portable water quality testing
Environmental monitoring and field analysis
Laboratory pH measurement
Food and beverage testing
Aquaculture and water treatment
Educational and research laboratories
Industrial liquid analysis
