TEM91 Digital Concrete Test Hammer

TEM91 Digital Concrete Test Hammer – Smart, Lightweight, and Highly Accurate for Non-Destructive Concrete Testing

The TEM91 Digital Concrete Test Hammer is an advanced and portable device designed for engineers, inspectors, and construction professionals who need a precise and efficient solution for non-destructive concrete strength testing. Combining modern digital interface features with classic rebound hammer principles, the TEM91 allows for faster, more accurate measurements with digital data storage and wireless data transmission options. This innovative tool brings together a user-friendly 2.0-inch color display, large internal memory, automatic data recording, and an upgraded model offering Bluetooth and Wi-Fi capabilities. Whether you’re on a high-rise construction site or evaluating infrastructure health in the field, the TEM91 is the smart solution for reliable concrete testing and reporting.

Key Features Of TEM91 Digital Concrete Test Hammer

1. High-Resolution 2.0-Inch Display with User-Friendly Interface
The TEM91 comes equipped with a full-color 2.0-inch LCD display featuring a resolution of 220 × 176 pixels, providing a crystal-clear visualization of test data, readings, and menu options. This intuitive display interface supports quick review of measurement records and easy navigation through device settings and stored test data, even under bright sunlight or dim conditions. The English-language version ensures global usability and removes ambiguity in field operations.

2. Smart Data Logging with High Capacity and Automatic Recording
Designed for high-volume fieldwork, the TEM91 supports automatic data collection and real-time display without requiring manual logging. Its onboard memory can store up to 2000 complete test sets and over 640,000 individual data points, offering ample storage for large-scale testing projects. With the auto-record feature, every impact is saved instantly, ensuring no data is lost, and minimizing user interaction during tests—streamlining the entire process and increasing productivity.

3. Versatile Output Options: USB, Bluetooth, and Wi-Fi (Updated Model)
The standard model supports USB connectivity for easy data export, while the updated version includes Bluetooth and Wi-Fi functionalities. This enables seamless data transmission to your mobile devices, tablets, or computers, allowing technicians to generate instant reports or integrate with cloud-based systems in real time. With wireless communication, the TEM91 adapts to modern workflows, enabling paperless documentation and fast data sharing between teams and departments.

4. Efficient Power Management with Long Battery Life
The TEM91 is powered by a 3.7V lithium-ion rechargeable battery with a 1050 mAh capacity. This ensures extended operational time in the field, minimizing interruptions during testing sequences. Its power management system includes automatic shut-off after periods of inactivity, conserving battery life when not in use. Recharging via USB port is simple and fast, keeping the unit ready for the next round of testing without requiring external battery replacements.

5. Compact, Lightweight, and Built for Portability
Weighing only 0.1 kg including the battery and measuring just 150 × 62 × 39 mm, the TEM91 is exceptionally lightweight and easy to handle. Its ergonomic design fits comfortably in one hand, making it suitable for both vertical and overhead testing applications. The compact size allows for convenient storage in tool bags or pockets, and it’s ideal for inspectors who perform regular testing across multiple job sites.

Why You’ll Love the TEM91

1. Schmidt Hammer Integration with Industry-Standard Impact Energy
At its core, the TEM91 integrates a classic Schmidt hammer with a standard impact energy of 2.207 J, ensuring compatibility with international testing standards. The tension spring has a calibrated rigidity of 7.85 N/m, providing accurate rebound readings essential for evaluating the compressive strength of concrete surfaces. These mechanical specifications ensure that the digital measurements remain reliable and traceable for compliance and certification purposes.

2. Real-Time Collection Mode for Accurate and Efficient Data Capture
Engineered for convenience, the TEM91’s collection mode operates automatically, displaying rebound values and recording data instantly after each hammer impact. This real-time feedback loop helps eliminate errors and the need for repeated tests. The internal system performs calculations based on predefined algorithms, streamlining workflows and allowing users to focus on analysis rather than raw data entry.

3. Multi-Site Project Capability with High Storage and Export Tools
Thanks to its large data capacity and wireless export options, the TEM91 is perfectly suited for large infrastructure projects, including bridges, tunnels, highways, and commercial construction sites. It allows users to perform and track thousands of tests across various locations without the need for external memory devices. Once collected, data can be exported via USB or wirelessly for archiving, documentation, or statistical analysis.

4. Reliable Operation with Automated Power Management
In addition to long battery life, the TEM91 includes an intelligent auto power-off feature that conserves energy when the device is idle. This is particularly beneficial on busy job sites where forgetting to turn off tools can drain batteries. When in use, the unit delivers consistent performance with minimal maintenance, ensuring reliability during long inspection routines.

5. Upgradeable Platform for Future Compatibility
The updated version of the TEM91 is future-ready, with hardware that supports both Wi-Fi and Bluetooth for modern integration. This upgradeable model allows compatibility with future software platforms and apps, ensuring the device remains relevant and useful as digital workflows evolve. Whether you’re syncing data to mobile apps or integrating with centralized reporting systems, the TEM91 adapts to your tech ecosystem.

How to Use the TEM91 Digital Concrete Test Hammer

1. Charge the Built-in Lithium Battery Before First Use
   Begin by fully charging the internal 3.7V lithium battery (1050mAh) using the USB cable provided. For updated models, you can also use the built-in Bluetooth or Wi-Fi feature to check battery levels and device readiness through compatible software. Ensure the battery is at optimal charge to avoid interruptions during data collection.
2. Power On and Prepare the Device for Testing
   Press and hold the power button until the 2.0-inch digital display (220×176 pixels) lights up. Once activated, the device enters standby mode, automatically ready to record data as soon as you begin testing. Make sure the language is set to English for easy navigation and data interpretation.
3. Place the Hammer on the Concrete Surface
   Hold the hammer perpendicular to the test surface. With the standard impact energy of 2.207J and a tension spring rigidity of 7.85 N/m, the hammer strikes the concrete accurately to determine rebound values. Apply firm, controlled pressure and release to initiate the automatic reading process.
4. View and Save the Test Data Automatically
   The TEM91 is designed for convenience—data is automatically collected and displayed on-screen. The auto-recording function stores up to 2000 test instances and up to 640,000 individual data points. There’s no need to press additional buttons or operate complex settings.
5. Transfer Data via USB, Bluetooth, or Wi-Fi (Updated Version)
   After testing, export your stored data using the built-in USB port. If you’re using the updated version, connect wirelessly via Bluetooth or Wi-Fi to sync your results with analysis software or cloud storage. This feature is ideal for field professionals working on multiple sites or collaborating with teams.

How to Take Care of Your TEM91 Digital Concrete Test Hammer

1. Store the Device in a Protective Case When Not in Use
   Due to its compact size (150×62×39 mm) and lightweight build (just 0.1 kg including battery), the TEM91 should be kept in a padded, shock-absorbing case to prevent accidental damage. Store it in a cool, dry place away from extreme temperatures or moisture.
2. Avoid Dropping or Striking the Device Outside of Test Use
   Even though the hammer is designed to withstand repeated impacts during testing, unintentional drops or mishandling may affect the internal tension spring calibration or damage the digital components. Handle the tool carefully during transport and when climbing scaffolding or ladders.
3. Clean the Exterior and Display Screen Regularly
   Use a lint-free microfiber cloth to wipe down the display and hammer body after each use. If necessary, slightly dampen the cloth with water or mild soap. Avoid using alcohol-based or abrasive cleaners that could damage the screen resolution or plastic housing.
4. Periodically Check for Spring Tension Consistency
   The internal spring is factory-calibrated for a specific rigidity of 7.85 N/m. Over time, frequent usage may cause it to wear out or lose precision. If you notice unusual readings or inconsistencies in test results, consider professional recalibration or service.
5. Power Off and Recharge After Long Testing Sessions
   Though the device has an automatic power-off feature, it’s good practice to turn it off manually after extended use. Recharge the battery using the USB port or wireless charging base if compatible. Keeping the battery healthy ensures consistent performance over time.

Safety Tips for Using the TEM91 Digital Concrete Test Hammer

1. Ensure the Concrete Surface is Clean and Dry
   Before conducting any test, wipe down the test surface to remove dust, oil, or moisture. Contaminated surfaces can affect rebound readings and lead to misleading results. Only test solid, structurally safe areas—avoid testing near cracks or loose edges.
2. Hold the Device Securely During Operation
   Grip the tool with both hands if needed for added stability, especially when working at awkward angles or in elevated positions. This ensures the hammer strikes accurately and reduces the risk of accidental slips or inconsistent impact pressure.
3. Never Attempt to Disassemble or Modify the Device
   The TEM91 is a precision-calibrated instrument with integrated digital electronics. Do not try to open the casing or modify the spring mechanism. Unauthorized tampering can result in incorrect readings, void the warranty, and pose safety risks during use.
4. Check Battery Levels Before Field Work
   Always verify the battery is sufficiently charged before taking the TEM91 on-site. Unexpected shutdowns during testing can disrupt workflow and cause loss of unsaved data. Keep a power bank or backup USB charging cable if you’re on extended field assignments.
5. Avoid Using in High-Moisture Environments
   While the device casing is durable, it is not waterproof. Do not use it in rain, near water sources, or on damp surfaces. If the device is accidentally exposed to moisture, turn it off immediately and allow it to dry thoroughly before reuse.

Why the TEM91 Is an Essential Tool for Structural Engineers and Site Inspectors

The TEM91 Digital Concrete Test Hammer revolutionizes concrete inspection with a blend of mechanical precision and modern digital efficiency. With automatic data collection, wireless connectivity, and massive storage capacity, it simplifies repetitive testing without compromising accuracy. Its lightweight design ensures portability, while the strong impact energy and factory-calibrated spring maintain test integrity across hundreds of uses. For engineers, inspectors, and construction managers, the TEM91 isn’t just a smart tool—it’s your reliable companion for ensuring the strength and consistency of concrete structures. From jobsite to report desk, the TEM91 makes concrete testing faster, smarter, and more professional.