Digital wireless dynamometer features high-precision tension measurement and Bluetooth data transmission. With a 3000kg (3 ton) capacity and ±0.5% accuracy, it is suitable for aerial work, climbing, power installation, railway, ropeway, and rope tension testing.
Specification
| Model |
ATO-DK-3 |
| Accuracy |
≤ ±0.5% |
| Working Load |
3000 kg / 30 kN |
| Safe Load |
120% FS |
| Ultimate Load |
200% FS |
| Temperature Compensation Range |
-20–50℃ |
| Operating Temperature |
-10–40℃ |
| Operating Humidity |
≤90% RH at 20℃ |
| Battery Life |
More than 60 hours (backlight off) |
| Battery Capacity |
Rechargeable lithium battery (3000 mAh / 3.7 V) |
| Bluetooth Connection |
Connects with mobile phones and tablets (Android only) |
| Display Units |
kg, lb, kN |
| Protection Rating |
IP65 |
| Dimensions |
180 × 90 × 22 mm |
Feature
- High Measurement Accuracy: Portable digital bluetooth dynamometer is equipped with a high-precision load sensor and reliable A/D conversion technology, it provides accurate tension measurement with an accuracy of ≤±0.5%.
- Portable Design: The compact structure allows easy one-hand carrying and convenient operation, especially for high-altitude work.
- Bluetooth Wireless Data Transmission: Portable digital dynamometer supports Bluetooth connection for real-time data monitoring, measurement recording, data saving, and analysis through APP.
- Multiple Unit Conversion: The LCD display supports quick switching between kg, kN, and lb units to meet different measurement requirements.
- Wide Application Range: Digital wireless dynamometer is suitable for aerial work, climbing, power industry, electrified railway, ropeway installation, and rope tension testing.
- Long Battery Life: Built-in 3000mAh rechargeable lithium battery provides more than 60 hours of operation with the backlight off.
- Reliable Protection & Stability: IP65 protection rating, strong anti-interference capability, and stable performance ensure reliable operation in industrial environments.
Size (unit: mm)

Application
The digital dynamometer is widely used for tension measurement and load monitoring in critical infrastructure applications, including power transmission, substations, railway systems, and cable transportation equipment. It helps engineers and technicians accurately measure pulling force, cable tension, and installation loads during construction, maintenance, and inspection, ensuring safe and reliable operation of high-load systems.

Tips: Why choose a Bluetooth dynamometer?
Bluetooth data transmission enables wireless measurement recording, allowing users to view, store, and analyze load data conveniently through connected devices. Compared with traditional wired measurement methods, it reduces manual recording errors, improves testing efficiency, and simplifies load monitoring during inspection and maintenance. The wireless design is especially suitable for field applications such as power transmission, railway systems, cableways, and industrial tension testing, providing a safer and more convenient solution for real-time force measurement.