| 301 | Double needle tachometer YS-3 | DY603 150℃ | Piece |
| 302 | Double needle tachometer YS-3 | 1500r/1500r 24V | Piece |
| 303 | Double needle thermometer YS-3 | 1500r/1500r 110V | Piece |
| 304 | Dual needle thermometer | 150℃/150℃ | Piece |
| 305 | Single Needle Tachometer | YDS2 150℃/150℃ | Piece |
| 306 | Single pin ammeter | YDS2 0-1500r | Piece |
| 307 | Anti-shock pressure gauge | YDS2 0-1000A | Piece |
| 308 | Locomotive electricity meter | TECSTS | Piece |
| 309 | Electric tachometer YDC-1 | DJ16 230V5A | Piece |
| 310 | Locomotive Speedometer EGS3 / 8 | 1500r 24V | Piece |
| 311 | Electric thermometer YDC-1 | 200KM/H 110V | Piece |
| 312 | Digital pressure gauge | 150℃ 24V | Piece |
| 313 | Bimetal thermometer | DC3230 | Piece |
| 314 | Bimetal thermometer | WSS-301 0-100℃ | support |
| 315 | Electric double needle thermometer | WSS-602 | Piece |
| 316 | WTN602 thermometer | 150℃YDS-2 | Piece |
| 317 | Diesel engine tachometer | 0-125℃ | Piece |
| 318 | WYZ-01 Wendu table | LZ-807 | Piece |
| 319 | Double pin current and voltmeter YS-3 | 0-125℃ | Piece |
| 320 | Double pin current and voltmeter YS-3 | 8KA/1KV | Piece |
| 321 | Double needle double tube pressure gauge YYS-1 | 8000A/1000V 24V | Piece |
| 322 | Double needle double tube pressure gauge YYS-1 | 1000KPA（轴向） | Piece |
| 323 | Double needle double tube pressure gauge YYS-1 | 1600KPA（轴向） | Piece |
| 324 | Double needle double tube pressure gauge | 1200KPA（轴向） | Piece |
| 325 | Double needle double tube pressure gauge | YZS-102-1600KP | Piece |
| 326 | Dual pin voltage and ammeter | YZS-102-1200KP | Piece |
| 327 | Dual pin voltage and ammeter | YS-3 1KV/8KA 24V | Piece |
| 328 | Double needle temperature pressure gauge | YS-3 1KV/8KA 110V | Piece |
| 329 | Double needle speed pressure gauge YDS2 | YS-3 150℃/1000KPa | Piece |
| 330 | Double needle speed pressure gauge YDS2 | (1:2)1500r/1000KPa | Piece |
| 331 | Double Needle Speed Ammeter YDS-2 | (1;1)1500r/1000KPa | Piece |
| 332 | Double pin voltage ammeter YDS-2 | 1500r/8A | Piece |
| 333 | Double pin voltage ammeter YDS-2 | 150V/8000A | Piece |
| 334 | Double needle pressure ammeter YDS-2 | 1KV/1KA | Piece |
| 335 | Double pin current and voltmeter YDS-2 | 1000KPa/+_100A | Piece |
| 336 | Single pin DC ammeter YDC-1 | 8KA/1KV | Piece |
| 337 | Double pin DC ammeter YS-1 | 1000A 24V | Piece |
| 338 | Double pin DC ammeter YDS-2 | 1000A 24V | Piece |
| 339 | Double pin voltage ammeter YDS-2 | 1000A 110V | Piece |
| 340 | Double pin voltage ammeter YDS-2 | 150V/8000A 24V | Piece |
| 341 | Two-needle electric tachometer | 150V/8000A 110V | Piece |
| 342 | Dual needle electric thermometer | YS-31500 24V | Piece |
| 343 | Single needle electric pressure gauge | YDS2 150℃ | Piece |
| 344 | Double needle electric pressure gauge YS-3 | YDC-1 1000A 24V | Piece |
| 345 | Double needle speed pressure gauge YS-1 | 1000KPa 24V | Piece |
| 346 | Dual needle speed pressure gauge | 1500A 24V | Piece |
| 347 | Double needle speed ammeter YS-3 | YDS2 1500r 110V | Piece |
| 348 | Double needle speed ammeter YS-3 | 1500r/1000A 24V | Piece |
| 349 | Double needle electric ammeter YS-3 | 1500r/1000A 110V | Piece |
| 350 | Double pin voltage ammeter YS-3 | 1000A/1000A | Piece |
