Affordable & Reliable pH Measurement in Malaysia: Exploring the QiWei E-201 Composite pH Electrode

Accurate pH measurement is the cornerstone of water quality analysis, chemical processing, food and beverage production, aquaculture, agriculture, and educational laboratories across Malaysia. However,because pH sensors are consumable electrochemical probes that require periodic replacement to maintain response speed and calibration accuracy, laboratories and field teams constantly look for electrodes that balance dependable measurement stability with cost-effectiveness.

The QiWei E-201 Composite pH Electrode is designed specifically to meet this need—offering a budget-friendly, durable, and versatile replacement probe compatible with a wide range of benchtop and portable pH meters.

Why Choosing the Right Replacement pH Electrode Matters

Over time, even the best pH meters will deliver sluggish readings, calibration drift, or erratic results if paired with an aged or fouled pH electrode. Having affordable, readily available replacement electrodes on hand ensures:

Uninterrupted Daily Testing: Eliminates downtime in QC laboratories, schools, and treatment plants when an old probe reaches the end of its service life.
Lower Operating Costs: Ideal for routine testing environments, multi-station setups, and educational institutions where frequent student or operator handling makes economical replacement essential.
Consistent Calibration Performance: A fresh glass sensing bulb and clean reference junction restore fast stabilization times and reliable slope values during two-point or three-point buffer calibration.

Key Highlights of the QiWei E-201 Composite pH Electrode

1. Cost-Effective Solution for High-Turnover Applications

Engineered to provide dependable everyday pH measurement at a highly accessible price point, the E-201 makes routine probe replacement practical for both small laboratories and large-scale industrial facilities.

2. Durable Plastic Body with Protective Bulb Guard

Constructed with a lightweight, impact-resistant polycarbonate/plastic outer body (available in distinct color-coded housings such as green, blue, and black for easy multi-channel or multi-station identification), the E-201 features a protective slotted guard around the sensitive pH glass sensing bulb. This reduces the risk of accidental breakage during immersion in beakers, tanks, or field sampling containers.

3. All-in-One Composite Design

Combining both the pH sensing glass electrode and the reference electrode into a single compact probe body,the E-201 simplifies sample testing—requiring only one probe immersion rather than separate indicator and reference electrodes.

4. Multiple Connector Options for Broad Meter Compatibility

To seamlessly fit different brands and generations of benchtop and handheld pH meters, the QiWei E-201 series is available with multiple standard interface configurations:

E-Type Plug (Standard BNC Connector): The universal quick-twist coaxial connector compatible with most modern laboratory benchtop and portable pH meters.
C-Type Plug: Multi-pin aviation-style connector designed for compatible specialized pH meters.
D-Type Plug: Alternative multi-pin connector configuration for specific meter models.
Direct Plug-In Type (Pen / Direct-Mount Style): Cable-free direct-attachment design for compatible compact or handheld meters.

Connector & Configuration Overview

Feature	Details
Model	QiWei E-201 Composite pH Electrode
Sensor Type	Combination / Composite pH Electrode (Sensing + Reference)
Body Construction	Durable Plastic Housing with Protective Bulb Guard
Housing Color Variants	Green, Blue, Black (for easy line/station differentiation)
Available Connectors	E-Plug (BNC), C-Plug, D-Plug, Direct Plug-In Type
Storage & Packaging	Supplied with protective wetting cap / storage bottle and cushioned box

Common Applications Across Malaysia

Schools, Colleges & University Teaching Labs: Economical, durable pH probes ideal for student chemistry experiments and routine academic laboratory sessions.
Water & Wastewater Treatment Plants: Routine pH verification of raw water, treated potable water,neutralization tanks, and discharge effluent.
Aquaculture, Hydroponics & Agriculture: Monitoring nutrient solution pH in fertigation systems, fish farms, and shrimp ponds where stable pH directly affects yield.
Food, Beverage & Quality Control Labs: Everyday pH checks of incoming ingredients, process water,sauces, beverages, and cleaning solutions.
Swimming Pools & Cooling Towers: Regular water balance testing to optimize sanitizer efficiency and prevent equipment scaling or corrosion.

Local Supply & Technical Assistance in Malaysia

Not sure which connector type matches your existing pH meter? Our team in Puchong, Selangor can help verify compatibility—whether you need standard BNC (E-plug), C-plug, D-plug, or direct plug-in electrodes—and assist with buffer solutions and calibration accessories.

Contact MTM Precision

MTM Precision Sdn. Bhd.

Showroom & Service Centre

No. 29-1 & 29-2, Jalan Bandar 18,

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia

Website:

www.mtmpre.com

.my

Email: mtmpre@yahoo.com

WhatsApp: +6016-660 7346

Office Tel: +603-80807172