直流电阻箱（多值可调）
| 型号名称 | 示值范围Ω | zui小步进Ω | 准确度% | 开关数 | 货号 |
| ZX-21 | 0-99999.9 | 0.1 | 0.1 | 6 | 货号:0031 |
| ZX-21a 旋转式电阻箱 | 0-111111.0 | 0.1 | 0.1 | 6 | 货号:0032 |
| ZX-21b 旋转式电阻箱 | 0-99999.9 | 0.1 | 0.1 | 6 | 货号:0033 |
| ZX21c 旋转式电阻箱 | 0-11111.10 | 0.01 | 0.1 | 6 | 货号:0034 |
| ZX-21d 旋转式电阻箱 | 0-1.111110M | 1 | 0.5 | 6 | 货号:0035 |
| ZX21e 旋转式电阻箱 | 0-11.11110M | 10 | 1 | 6 | 货号:0036 |
| ZX-21f 旋转式电阻箱 | 0-111.1110M | 100 | 2 | 6 | 货号:0037 |
| ZX21g 旋转式电阻箱 | 0-1.111110G | 1000 | 5 | 6 | 货号:0038 |
| ZX25a | 0.01-11111.11 | 0.01 | 0.02 | 6 | 货号:0039 |
| ZX-35 旋转式电阻箱 | 0-1110 | 1 | 0.1 | 3 | 货号:0310 |
| ZX36 旋转式电阻箱 | 0-9999 | 1 | 0.2 | 4 | 货号:0311 |
| ZX-54 开关式直流标准电阻箱 | 0.01-111111.00 | 0.01 | 0.01 | 7 | 货号:0312 |
| ZX-55 | 0-1110 | 1 | 0.02 | 3 | 货号:0313 |
| ZX-56 开关式直流标准电阻箱 | 0.01-11111.11 | 0.01 | 0.02 | 6 | 货号:0314 |
| ZX-67 开关式直流标准电阻箱 | 0.01-11111.11 | 0.01 | 0.01 | 6 | 货号:0315 |
| ZX-74 直流电阻箱 | 0.001-1111.210 | 0.01 | 0.01 | 6 | 货号:0316 |
| ZX-84 直流电阻箱 | 0-111.1110M | 100 | 0.05 | 6 | 货号:0317 |
| ZX-127 高阻电阻箱 | 0-121.10M | 10000 | 1 | 4 | 货号:0318 |
| ZX-1G 高阻电阻箱 | 0-1111.110M | 1000 | 5 | 6 | 货号:0319 |