Concrete Resistivity Meter for Accurate Construction

Effortlessly test concrete surfaces without the need for breaking or drilling, preserving the integrity of the structure.

Our innovative sponge plug sensor delivers precise and easy measurements, ensuring unmatched accuracy every time.

Achieve unparalleled reliability with our standard test block, guaranteeing consistent and trustworthy measurement results.

Featuring a convenient display reading-hold function for seamless operation and impeccable data recording.

Experience uninterrupted testing with a robust rechargeable battery that provides up to 5 hours of continuous use, ensuring your projects stay on track.

Includes a stylish and practical handbag for effortless transport and storage, offering both convenience and elegance.

The sleek aluminum carrying case offers effortless portability, making it the perfect companion for on-the-go professionals who demand efficiency and style.

Founded in 1999, Shandong Luda Test Instrument Co., LTD. (formerly Tai 'an Luda Road Instrument Manufacturing Co., LTD.) is a beacon of excellence in R&D, production, and sales of premium testing equipment. Specializing in road, construction, hydropower, and environmental testing, as well as material testing machines and educational training apparatus, we are a national high-tech enterprise recognized for bespoke scientific research instruments.
With a registered capital of 10 million yuan and spanning over 13,000 square meters, our company offers a workshop and office space exceeding 6,000 square meters. Supported by a robust technical team and seasoned professionals, we provide services including laboratory design, equipment supply, installation, commissioning, maintenance, and comprehensive technical support.
Driven by scientific and technological advancements, we've consistently elevated product quality and intelligence. In 2013, we received the Ministry of Science and Technology's 'Technology Innovation Fund.' By 2014, we contributed to drafting the 'Sand Filling Instrument' standard for China's transportation industry and developed Shandong's 'Electronic Pavement Strength Tester' standard. In 2017, we compiled the 'Sand Equivalent Tester' standard and in 2020, the national 'Uniaxial Compression Elastic Modulus Test Method.' Our commitment to excellence is demonstrated by our ISO9001, ISO14001, and OHSAS18001 certifications and our 2021 reaffirmation as a 'High-tech Enterprise.' With over 90 intellectual property rights, including patents and copyrights, we've garnered numerous awards. Our microcomputer servo pavement material strength testing machine won the third prize at the Tai 'an Patent Award in 2017, and we excelled in innovation competitions in 2017 and 2018. In July 2022, our 'LD-ZNZ2 Intelligent Automatic Needle Penetration Tester' and 'LD-ZNR2 Intelligent Automatic Softening Point Tester' achieved international recognition for technological advancements. Collaborations with esteemed institutions like Shandong University and Southwest Jiaotong University enhance our R&D capabilities, providing practice bases and organizing competitions. We proudly supported the 'Luda Cup' and co-organized the 2014 first Shandong Provincial Transportation System Highway Water Transportation Engineering Test Skills Competition, earning the 'Special Contribution Award.' Our dedication to social responsibility is demonstrated by significant disaster relief contributions and recognition as an 'Advanced Unit' by the Tai 'an High-tech Zone Charity Association.
Shandong Road Instrument Co., Ltd. leads the market by focusing on quality as the cornerstone of competition and talent as the heart of management. We strive for continuous success, offering attentive service to exceed customer expectations, aiming to become a premier supplier in the test instrument industry.
Located in Tai'an High-tech Zone, near the scenic Taishan area and major routes like the Beijing-Taiwan, Beijing-Shanghai Expressway, and 104 National Highway, Shandong Road Instrument Co., Ltd. enjoys a prime location. We warmly welcome both new and long-standing customers to contact us via phone or letter and invite you to visit our company for guidance.

1. Factory Direct Sales: Revel in the advantage of purchasing directly from Shandong Road Instrument Co., Ltd., ensuring not only competitive prices but also the original, unmatched quality of our NJ-4000 concrete resistivity meter.

2. Two-Year Warranty: Take advantage of our extensive two-year warranty, offering comprehensive protection and peace of mind for your NJ-4000 concrete resistivity meter investment.

3. Exceptional 24/7 After-Sales Support: Our dedicated after-sales team is at your service around the clock, committed to ensuring your complete satisfaction and addressing any concerns with unwavering promptness.

Q: Are you a trading company or a factory?
A: We are a unique blend of factory and trading expertise, boasting over 20 years of unparalleled experience in the realms of roads, construction, materials, and testing equipment.

Q: Once the order is confirmed, what is the expected delivery time?
A: Typically, delivery takes around 10-25 days. However, if the item is in stock, we can expedite the process to ensure delivery within 3 days.
Please note: Our production lead time is contingent on the specific item and the order quantity. Your patience and understanding are greatly appreciated.