| no. | file name | download |
| 1 | ds7l series three-phase intelligent power meter operation manual (c version) | |
| 2 | ci-w series multi-function counter user manul(a version) |  |
| 3 | tew series intelligent temperature controller operation manual (e version) | |
| 4 | ca series counter manual (version b) | |
| 5 | gta2 series module type four-channels temperature controller(b version) | |
| 6 | gte2 rail type modular single channel temperature controller manual (b version) | |
| 7 | ai808p series intelligent tenperature controller user manual | |
| 8 | dw9e series three-phase power meter operation manual (d version) | |
| 9 | gte2 two-circuit series temperature controller instruction manual (a version) | |
| 10 | | |
| 11 | dx series three and a half digital voltage ammeter manual (c version) | |
| 12 | dl series voltage ampere meter user manual（c） | |
| 13 | ai518 series intelligent regulator operation manual (a2 version) | |
| 14 | fm series frequency/speed/wire speed meter instruction manual (c version) | |
| 15 | | |
