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.
PHS Series: pH/ORP
High-impedance input isolated transmitters designed for stable pH/Redox measurement. Ideal for cooling water, neutralization, and chemical dosing.
DDP Series: Conductivity
Precision Conductivity & TDS transmitters for ultra-pure water and boiler feed monitoring. Built with digital temperature compensation for 24/7 accuracy.
OEM & Private Label
Ledaer offers complete OEM/ODM manufacturing for analytical instruments. Specialized branding, custom signal protocols, and unique probe housing engineering.
Discuss OEM PartneringAnalytical 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.
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
National Service Infrastructure
Extensive service network across China, including dedicated branch offices in Shandong, Xi’an, and Xinjiang.
Nearly 30 skilled technicians providing seamless system integration, on-site installation, and maintenance for petrochemical hubs.
Dedicated offices in Xi’an and Xinjiang support oil fields and power generation with 24/7 technical emergency response.
Engineered solutions designed to meet the rigorous safety standards and shipping requirements of international process industries.
Core Product & Service Portfolio
Experts in DCS (Distributed Control), SIS (Safety Instrumented), and GDS (Gas Detection) architectures.
High-performance Pressure Transmitters, Level Gauges, Industrial Thermometers, and specialized Flow Meters.
Extensive selection of Automatic Control Valves, Shut-off Valves, and high-sensitivity Analytical Instruments.
Complete Electrical Cabinet Assembly and professional on-site instrumentation equipment installation.


