| NO. | File Name | Download |
| 1 | CG-X Series Digital Counter User Manual(A Version) |  |
| 2 | GTF2 Two-Circuit Series Temperature Controller Manual (Version A) |  |
| 3 | GTG2 four-loop modular temperature controller manual (B version) | |
| 4 | GTF2 Series Module Type Temperature Controller(B Version) | |
| 5 | EX Series Three and a Half Digital Voltage and Ammeter Instructions (Version B) | |
| 6 | ES series three-phase intelligent power meter (basic version) communication protocol (B version) | |
| 7 | HG series time relay manual | |
| 8 | SF Sensor Meter User Manual（C Version） | |
| 9 | FN8 Series Frequency, Speed, Wire Speed Meter Instruction Manual (A Version) | |
| 10 | Three-phase three-wire / three-phase four-wire electronic multi-function electric energy meter operating manual (A version) | |
| 11 | ES9L three-phase intelligent power meter operation manual (A1 version) | |
| 12 | Three-phase intelligent electric energy meter MODBUS-RTU-485 communication protocol V1.1 | |
| 13 | CR Series Intelligent counting (counting length) frequency (linear speed) table operation manual(A version) | |
| 14 | DDZY9180-L series single-phase rail-mounted energy meter operation manual (version A) | |
| 15 | | |
