Earth Tester Price in Bangladesh 2026

Checking the Earth Tester price in Bangladesh usually means weighing accuracy against budget — options here range from ৳20,500 for a portable digital model to ৳258,000 for a professional resistivity-testing unit. ASTZ stocks genuine HIOKI, Kyoritsu, and Sanwa earth testers, so this guide breaks down which one actually fits your job instead of just listing prices.

What Is an Earth Tester (Earth Resistance Tester) and Why It’s Needed

An earth tester measures the resistance between a grounding electrode and the earth itself, confirming whether a grounding system can safely dissipate fault current. A poorly grounded system doesn’t fail quietly — it puts people and equipment at risk during a fault event.

Its Role in Grounding/Earthing System Safety

Electrical codes require grounding systems to stay below a maximum resistance threshold. Regular earth resistance testing catches degraded rods, corroded connections, or soil condition changes before they become a safety failure during an actual electrical fault.

Earth Tester Price in Bangladesh 2026

2-Electrode vs 3-Electrode Measurement Method — What’s the Difference

The 3-electrode method is the standard approach: you drive two auxiliary rods into the ground at set distances from the electrode under test, and the meter calculates true earth resistance from the readings. It’s the method to use whenever you’re testing a new installation or need a fully independent result.

The 2-electrode method skips the auxiliary rods and instead measures against a known low-resistance reference point, like a utility pole’s Class B ground. It’s faster for routine checks but less precise — use it for quick verification, not for certifying a new grounding system.

ASTZBD Earth Tester Models — Which One Is Right for You

Sanwa PDR4000 — Portable Entry Point

At ৳20,500, this is ASTZ’s most accessible earth tester. It suits electricians and maintenance teams who need a reliable, portable unit for routine field checks without paying for resistivity-mapping features they won’t use.

HIOKI FT6031-50 — Rugged Field-Ready Meter

Priced at ৳39,000, the FT6031-50 is built IP67 dust and waterproof, switchable between 2- and 3-electrode methods, with a 0-2000 Ω measurement range. It’s designed for technicians working in muddy or wet field conditions where a standard meter wouldn’t survive the environment — auto-range operation also removes manual range-switching during measurement.

Kyoritsu KEW4106 — Professional Resistivity Tester

At ৳258,000, this is the top-tier option, built for engineers who need both earth resistance and soil resistivity measurement — essential for large-scale grounding grid design in substations and industrial installations where a single resistance reading isn’t enough.

Key Features & Technical Specifications

Specification Table

(Sanwa and Kyoritsu figures need datasheet confirmation before publishing — flagged above.)

Earth Resistance Test — Step-by-Step Procedure

1. Disconnect the grounding system from any live circuit before testing.
2. Drive two auxiliary earth rods into the ground, spaced according to the meter’s recommended distances from the electrode under test.
3. Connect the meter’s leads to the electrode and both auxiliary rods.
4. Select the appropriate measurement range and press measure — auto-ranging meters will select this automatically.
5. Record the resistance reading, along with soil conditions and date, for your maintenance log.
6. Repeat periodically, especially after heavy rain or dry seasons, since soil moisture directly affects readings.

Buying Guide — How to Choose the Right Earth Tester

Selection by Measurement Range

Match the meter’s range to your typical grounding resistance values. Routine building electrical work rarely exceeds a few hundred ohms, while some industrial or rocky-soil sites need a wider range.

Do You Need Dust/Water Protection (IP Rating)

If you’re testing outdoor installations, substations, or sites exposed to rain and mud, an IP67-rated meter like the FT6031-50 protects your investment. Indoor or occasional testing doesn’t need that level of protection.

Budget vs Professional-Grade

A ৳20,500 portable meter handles routine verification well. Once your work involves grounding grid design, soil resistivity mapping, or compliance documentation for large installations, the added cost of a professional-grade unit like the KEW4106 is justified by the data it provides.

Applications — Where It Is Used

Earth testers are standard equipment for substation grounding verification, industrial earthing system maintenance, building electrical installation compliance checks, and telecom tower grounding. Utility and engineering teams working on BUET or REB-affiliated projects rely on documented earth resistance readings as part of standard electrical safety protocol.

Why Buy From ASTZBD

Every earth tester sold is a genuine HIOKI, Kyoritsu, or Sanwa unit, backed by warranty coverage, nationwide delivery, and technical support if you need help choosing the right model or interpreting a reading.