Portable pH Meter LMPH-403 Catalog

Overview

Portable pH Meter LMPH-403 provides –2.000 to 20.000 pH range with selectable 0.001 resolution. Integrated with ion concentration range 0.001 to 19999, supporting multiple units like ppm, mg/L, mmol/L. It features one-point calibration ensuring faster setup while maintaining stable performance across different testing environments. Equipped with a wide LCD interface, it delivers clear visibility and effortless operation for professionals. Our Portable pH Meter incorporates memory capacity storing 500 data sets for reliable record management.

Features :

Self-power-off function 

Auto-read capability

Compatible with standard buffers

Alarm reminder 

USB interface

Specifications :

PH Measurement Range	-2.000 to 20.000 pH
PH Resolutions	0.001, 0.01, 0.1 pH, selectable
PH Accuracy	±0.002 pH
PH Calibration	1 to 5 points
PH Buffer Options	USA, NIST, DIN, 2 custom buffers
Ion Measurement Range	0.001 to 19999 (depends on ISE range)
Ion Resolution	0.001, 0.01, 0.1, 1
Ion Accuracy	±0.5% F.S. (monovalent), ±1% F.S. (divalent)
Ion Measurement Units	ppm, mg/L, mol/L, mmol/L
Ion Calibration	2 to 5 points
Ion Calibration Solutions	0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000
ORP Mv Range	±1999.9 mV
ORP Relative Mv Range	±1999.9 mV
ORP Resolution	0.1, 1 mV, selectable
ORP Accuracy	±0.2 mV
ORP Calibration	1 point
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 Offset Calibration	±10°C, 1 point
Temperature Compensation	0 to 100°C, manual or automatic
Type	Portable
Interface	LCD
Display	Custom LCD (80 × 60 mm)
Stability Modes	Low or high
Calibration Alarm	1 to 31 days or off
Slope/Offset Display	Yes
Hold Function	Manual or auto-endpoint
Auto Power-Off	10, 20, or 30 minutes after last key press
Memory Capacity	500 data sets
Communication Interface	USB
Connectors	BNC, 3.5mm jack socket
Battery Life	150 hours (with backlight off)
Power Supply	3 × 1.5V AA batteries or 5V DC adapter
Dimension (L×W×H)	170 × 85 × 30 mm
Net Weight	300 g

Standard Accessories :

Model No.	Accessory
LMPH-403-T1	Temperature probe
LMPH-403-P1	pH electrode
LMPH-403-B1	pH buffer solutions (4.01/7.00/10.01)

Applications :

Portable pH Meter LMPH-403 is ideal for monitoring water quality, detecting contamination, performing pH and ion testing in laboratories, food and beverage industries, hydroponics, soil analysis and other soluble solutions.