Liquid Analysis & Process Purity

Water Quality Transmitters:
Precision in Every Drop

From high-purity pharmaceutical water to aggressive chemical wastewater. LEDAER provides robust 2-wire analytical solutions for pH, ORP, and Conductivity monitoring.

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PHS Series: pH/ORP

High-impedance input isolated transmitters designed for stable pH/Redox measurement. Ideal for cooling water, neutralization, and chemical dosing.

2-Wire / 4-20mA + HART

DDP Series: Conductivity

Precision Conductivity & TDS transmitters for ultra-pure water and boiler feed monitoring. Built with digital temperature compensation for 24/7 accuracy.

Range: 0.05μS/cm to 200mS/cm
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OEM & Private Label

Ledaer offers complete OEM/ODM manufacturing for analytical instruments. Specialized branding, custom signal protocols, and unique probe housing engineering.

Discuss OEM Partnering

Analytical Selection Matrix

Parameter Recommended Model Typical Media Key Feature
pH / ORP PHS-200 Series Acidic/Alkaline Waste, Chemicals High Impedance Isolation
Conductivity DDP-300 Series Condensate, RO Water, Saline Linear Temp Compensation
Dissolved Oxygen DOS Series Aeration Tanks, Aquaculture Fast Membrane Response

Corporate Profile

Beijing Ledaer Automation Technology Co., Ltd.

Headquartered in Tongzhou, Beijing, Ledaer is a premier turnkey automation system integrator and high-precision field instrument manufacturer. We provide specialized solutions for Oil & Gas, Chemical, Power, Metallurgy, and Pharmaceutical industries worldwide.

30+ Technicians
24/7 Expert Service
Global Reach
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Expert OEM Solutions

We translate your engineering requirements into market-ready products with full-cycle OEM and Private Label manufacturing capabilities.

  • Custom Housing & Branding
  • Specialized Range Calibration
  • Tailored Signal Output Protocols
Discuss OEM Project

National Service Infrastructure

Extensive service network across China, including dedicated branch offices in Shandong, Xi’an, and Xinjiang.

📍 Shandong Division

Nearly 30 skilled technicians providing seamless system integration, on-site installation, and maintenance for petrochemical hubs.

📍 Regional Support

Dedicated offices in Xi’an and Xinjiang support oil fields and power generation with 24/7 technical emergency response.

📍 Global Logistics

Engineered solutions designed to meet the rigorous safety standards and shipping requirements of international process industries.

Core Product & Service Portfolio

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System Integration

Experts in DCS (Distributed Control), SIS (Safety Instrumented), and GDS (Gas Detection) architectures.

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Field Instrumentation

High-performance Pressure Transmitters, Level Gauges, Industrial Thermometers, and specialized Flow Meters.

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Control Solutions

Extensive selection of Automatic Control Valves, Shut-off Valves, and high-sensitivity Analytical Instruments.

Electrical Engineering

Complete Electrical Cabinet Assembly and professional on-site instrumentation equipment installation.

Integrity • Service • Quality Control

We are committed to technological innovation, continuously developing advanced automation products designed to meet the rigorous demands of modern global industries.