The USU-D-1M-04 diesel engine alarm and control device is designed to control the process of shaft movement and monitor oil and liquid indicators. The device monitors the oil pressure parameters and counts the engine hours elapsed after rotation. The USU-D-1M-04 device displays the results according to a 4-charge digital mechanism of action and is responsible for activating the semi-automatic and emergency start of the diesel engine.
| Indicator name | Definition or meaning |
| Tool shaft rotation speed, rpm | 10-2000 |
| Oil temperature, ° С | 0-120 |
| Liquid temperature, ° С | 0-120 |
| Oil pressure, kPa | 0-1600 |
| Number of working hours, h | 1-9999 |
| Calculation error,% at the sensor and counter other devices of the mechanism | +/- 0.02 +/- 2.5 |
| Maximum voltage in the area of contacts, V | 31.5 |
| Limiting current, A | 0.5 |
| Load properties | active |
| Indicator voltage in the area of executive structures, V | 24 |