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Resistance Tester | 0.00Ω-2000Ω Range Digital Ground Resistance Tester

SKU: GP-RM-EM3040

Professional digital ground resistance tester engineered for fast, accurate electrical grounding system testing.
User-friendly design, portable build and anti-interference performance.
Ideal on-site tool for electricians, maintenance teams and safety inspectors across power, telecom, construction and manufacturing industries.

$308.45

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OVERVIEW

GoodProx ground resistance tester GP-RM-EM3040 is an industrial-grade digital measurement tool crafted for reliable, high-precision testing of all types of electrical grounding systems. As a professional GP-RM-EM3040 digital ground resistance tester, it integrates advanced microprocessor sensing technology and a rugged, compact build to deliver fast, error-free readings in harsh on-site working conditions—supporting one-person operation with no complex setup required.
This GP-RM-EM3040 professional digital ground resistance tester for industrial use is battery-powered, user-friendly and equipped with strong anti-interference performance, making it the ultimate portable digital ground meter for electricians, maintenance technicians and industrial safety inspectors.

FEATURES

High Precision Measurement: The GP-RM-EM3040 digital ground resistance tester delivers industrial-grade accurate grounding readings with minimal error for reliable testing results.

Fast Intuitive Operation: One-click testing and auto range switching streamline on-site workflows for the GP-RM-EM3040 ground resistance tester.

Backlit LCD Display: Clear digital readouts in low-light industrial, outdoor and remote on-site environments for easy data reading and recording.

Rugged Portable Build: Dust/impact-resistant casing and lightweight design make this portable digital ground meter perfect for field use.

Advanced Anti-Interference: Multi-layer filtering technology ensures stable readings in complex electromagnetic environments—core feature of the GP-RM-EM3040 anti-interference digital grounding tester.

Practical Smart Alerts: Low battery indication and over-range alarm prevent testing errors and ensure uninterrupted on-site operation.

Battery-Powered Flexibility: Cable-free design for convenient use in remote on-site locations with no access to external power.

International Standard Compliance: Meets global electrical testing standards for safe and reliable industrial and commercial use.

SPECIFICATION

GoodProx GP-RM-EM3040 Digital Earth Resistance Tester
Product Function
2-wire method and 3-wire method earth resistance measurement, earth voltage measurement, AC and DC voltage measurement.
Product features
1. The tester body is light, easy to carry and operate.
2. With the function of judgement the auxiliary grounding stake, the tester can display the resistance value of the auxiliary grounding stake in testing, which can avoid the error caused by the excessive earth resistance of the auxiliary ground stake.
3. With line resistance calibration function, which can avoid the error caused by the bad contact of the test line.It makes the measurement of low earth resistance more accurate and reliable in the site.
4. Earth voltage measurement function.
Technical Specification
Power Supply	DC9V, Alkaline dry battery (LR6 1.5VX6PCS)
Measurement Method	Earth resistance: rated current change-pole method, test current 20mA Max; Voltage to earth: average value rectification method
Earth Resistance Measurement	Range: 0.01Ω~2000Ω
	Resolution: 0.01Ω
	Accuracy: ±2%rdg±3dgt
Earth Voltage Measurement	Range: 0V~300V AC/DC
	Resolution: 1V
	Accuracy: ±2%rdg±3dgt
LCD Display	LCD display area: 58mmX46mm
Tester Dimension	183mm(L)X89mm(W)X56mm(H)
Weight	Total weight: about 2.37kg (include accessories)
Test Indicator	TESTING indicator light up, indicate that earth resistance is testing
Auxiliary Grounding Alarm	R P (s) R C (H) OK indicator light up, avoid errors caused by excessive grounding resistance of the auxiliary grounding electrode.
AC/ DC Voltage Alarm	When the voltage is greater than 36V, the Live circuit indicator light will flash and the buzzer will sound an alarm.
Line Resistance Calibration	Avoid errors caused by the test line not fully inserted into the tester interface or poor contact or the user replaces the lengthened test line, ensure earth resistance measurement accurate
Measurement Time	Earth resistance: 5 seconds/time;Voltage to earth: 2 times/second;
Automatic Shutdown	10 minutes without any operation after starting up, the tester will shutdown automatically
Battery Voltage	While battery voltage drop to around 7.2V, low battery voltage symbol“ ” will flash display, and remind to replace the battery
Overload Protection	Earth resistance: between each interfaces of E-P,E-C is AC 280V/3 seconds
Electromagnetic Property	IEC61010-4-3, wireless frequency electromagnetic field≤1V/m
Working Curren	Backlight: 56mA Max; Standby: 20mA Max(Backlight off); Measurement: 200mA Max(Backlight off)
Accessories	Tester:1PCS; Ground stake: 2PCS; Test line: 3PCS; Simple test line:1PCS; Tool bag:1PCS; LR6 battery: 6PCS
Warranty	12 Months

APPLICATIONS

GoodProx high-performance GP-RM-EM3040 digital ground resistance tester is the premium industrial grounding tester for a wide range of industries and on-site scenarios where accurate grounding system testing is critical:

Power Industry: Substations, power plants, transformer stations and power distribution line grounding inspections, fault testing and preventive maintenance.
Telecommunications: Telecom base stations, data centers, communication towers and network equipment grounding system maintenance and safety checks.
Construction & Real Estate: Lightning protection and electrical grounding testing for commercial buildings, industrial facilities, high-rises and residential complexes.
Manufacturing & Heavy Industry: Factory production lines, heavy machinery and industrial equipment grounding safety compliance checks.
Facility Management: Routine grounding system maintenance for industrial parks, shopping malls, commercial complexes and office buildings.
On-Site Electrical Inspections: Emergency fault diagnosis and rapid grounding testing for all electrical systems in remote field and construction locations.
Electrical Safety Audits: Third-party professional safety inspections and certification testing for industrial, commercial and residential grounding installations.

PRODUCT DETAILS

Why Choose GoodProx GP-RM-EM3040 Digital Ground Resistance Tester?

✅ Industrial-Grade Precision: The GP-RM-EM3040 electrical ground tester provides accurate, repeatable readings for critical electrical safety checks and compliance.
✅ On-Site Portability: Lightweight, compact design makes this portable digital ground meter ideal for all-day field operation and remote site use.
✅ Rugged Durability: Dust/impact-resistant casing ensures long-term performance in harsh industrial, outdoor and construction working conditions.
✅ User-Friendly Design: One-click operation and auto functions make the GP-RM-EM3040 digital ground resistance tester easy to use for all skill levels—no professional training required.
✅ Strong Anti-Interference: Advanced filtering technology guarantees stable readings in high-electromagnetic interference industrial environments.
✅ Genuine Quality: Authentic GP-RM-EM3040 digital ground meter with strict quality control and pre-shipment calibration for consistent, reliable performance.
✅ All-in-One Testing Tool: Replaces multiple devices to meet all routine inspection, fault diagnosis and preventive maintenance needs for electrical grounding systems.