Langry RH225-B Integrated Digital Rebound Hammer
Advanced patented digital concrete hammer featuring non-contact electromagnetic sensor technology, integrated 2.8" OLED display, voice prompt reporting, and 1,000 component memory.
Key Engineering Highlights
- ✓ Patented integrated design: mechanical pointer and digital sensor in one housing
- ✓ High-contrast 2.8-inch OLED dot matrix display (256x64 resolution)
- ✓ Multi-language voice broadcast prompts for hands-free site operation
- ✓ Massive internal storage: logs 1,000 test components and over 100,000 measurement points
- ✓ Built-in Bluetooth communication for wireless on-site thermal printers
- ✓ Long-life 3.7V / 3200 mAh rechargeable lithium-ion battery (over 10 hours continuous operation)
Technical Overview & Compliance
The Langry RH225-B Integrated Digital Rebound Hammer combines mechanical rebound precision with digital data capture. Designed for rapid evaluation of compressive strength in concrete structures, it eliminates human reading errors through a contactless metal grating sensor. Measurements are displayed instantly on a 2.8-inch high-contrast OLED screen, broadcast via human voice prompts, and logged into onboard memory with Bluetooth field printing capability.
Verified Technical Specifications
| Parameter | Specification Value |
|---|---|
| Impact Energy | 2.207 J (Type N) |
| Measuring Range | 10 – 60 MPa |
| Pointer Friction | 0.65 ± 0.15 N |
| Spring Stiffness | 785.0 ± 30.0 N/m |
| Operating Spring Length | 61.5 ± 0.3 mm |
| Calibration on Steel Anvil | 80 ± 2 |
| Display Screen | 2.8-inch OLED (256 x 64 pixels) |
| Power Supply | 3.7V / 3200 mAh Rechargeable Li-ion Battery |
| Operating Temperature | -10°C to +40°C |
| Applicable Standards | IS 13311-2, ASTM C805, EN 12504-2, JGJ/T 23 |
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