Short Description

The Lutron PH-220S is a professional digital soil pH meter designed for accurate pH measurement in soil, compost, agricultural samples, meat, cheese, and other semi-solid materials. It features a separate spear-tip pH electrode, automatic calibration, IP65-rated front panel, and a compact pen-style design. The precision electrode allows direct penetration into samples for fast, reliable, and repeatable measurements, making it ideal for agriculture, horticulture, laboratories, research, and food industries.

Key Features

• Professional Digital Soil pH Meter
• Separate Spear Tip Soil pH Electrode
• Direct Penetration Measurement
• Auto Calibration (pH 4, pH 7 & pH 10)
• Wide Measurement Range: 0.00 to 14.00 pH
• High Resolution: 0.01 pH
• Automatic Temperature Compensation
• Data Hold Function
• Reverse Display Function
• IP65 Water-Resistant Front Panel
• BNC Electrode Connector
• Microprocessor-Based Circuit
• Auto Power Off
• Low Battery Indicator
• Lightweight & Portable Design

Applications

Suitable for:

• Agriculture
• Soil Analysis
• Horticulture
• Greenhouses
• Plant Nurseries
• Gardening
• Compost Testing
• Food Processing
• Meat & Cheese pH Testing
• Educational Institutions
• Environmental Monitoring
• Research Laboratories
• Quality Control

Technical Specifications

pH Measurement

Calibration

Temperature Compensation

• Automatic Temperature Compensation (ATC)
• No manual adjustment required

Input Impedance

• 10¹² Ohms

Soil pH Electrode Specifications

Display

• LCD Display
• Display Size: 20 × 28 mm
• Reverse Display Function
• Data Hold Indicator

Functions

• Soil pH Measurement
• Semi-Solid Sample pH Measurement
• Auto Calibration
• Automatic Temperature Compensation
• Data Hold
• Reverse Display
• Auto Power Off
• Low Battery Indicator

Sampling Time

• Approximately 0.8 Seconds

Operating Conditions

Operating Temperature

• 0°C to 50°C

Operating Humidity

• Less than 80% RH

Power Supply

• 4 × 1.5V AAA Batteries (UM-4)

Power Consumption

• Approximately 4.8 mA

Dimensions

Meter

• 180 × 40 × 32 mm

Electrode

• 160 mm Length × 12 mm Diameter

Electrode Cable Length

• Approximately 1 meter

Weight

• Approximately 220 g (including electrode)

Construction

• High-Impact ABS Plastic Housing
• Rugged Epoxy Spear Tip Electrode
• IP65 Water-Resistant Front Panel
• Microprocessor-Controlled Electronics

Standard Package Includes

• Lutron PH-220S Digital Soil pH Meter
• PE-06HD Soil pH Electrode
• pH 4.00 Buffer Solution
• pH 7.00 Buffer Solution
• User Instruction Manual

Optional Accessories

• Hard Carrying Case (CA-06)
• Soft Carrying Case (CA-05A)
• pH 10.01 Buffer Solution
• Replacement PE-06HD Soil pH Electrode

Advantages

• Direct Soil Penetration Measurement
• High Accuracy with Automatic Calibration
• Replaceable Spear Tip Electrode
• Excellent for Field & Laboratory Use
• Water-Resistant Front Panel
• Easy One-Hand Operation
• Lightweight & Portable
• Reliable Microprocessor-Based Performance
• Suitable for Soil and Semi-Solid Samples
• Long Service Life

Industries Served

• Agriculture
• Horticulture
• Greenhouse Farming
• Landscaping
• Food Processing
• Environmental Monitoring
• Soil Testing Laboratories
• Universities
• Research Institutes
• Quality Assurance