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| Type | Special features |
| AT1 | Modular DC amplifier for strain gauge half and full bridges. From 1 to 14 measurement channels. Accuracy class 0.1. Complete control in operator dialogues over the LCD display. Serial interface for measurement output. |
| AT2 | Digital amplifier. From 1 to 3 measurement channels. Accuracy class 0.02. LCD display. |
| AT3 | Digital amplifier. From 1 to 6 measurement channels. Accuracy class 0.02. Rugged cast housing (IP 65). |
| KT1 | Calibration Unit for calibrating strain gauge measurement systems. Accuracy class 0.01. |