The Testo 454 Data Logger Instruction Manual provides setup, operation, and technical specifications for the portable measuring instrument.
This manual covers the Testo 454 data logger, a handheld instrument for measuring temperature, humidity, velocity, pressure and other parameters. It describes the instrument layout, keyboard functions, menu structure, and step‑by‑step introductory training for measuring, printing and saving data.
The document also includes detailed technical data, probe information, ordering details, accessories, and warranty conditions. It explains how to connect probes, configure measurement programs, use the infrared printer, and transfer data to a PC via the Comfort software.
| Temperature measuring range | -200 to +800 °C |
|---|---|
| Temperature resolution | 0.1 °C |
| Temperature accuracy | ±0.1 °C (-49.9 to +99.9 °C) |
| Number of probe inputs | 6 |
| Memory space | 256 kB (≈110,000 measured values) |
| Battery life | 8 h continuous operation with 6 thermocouple probes |
| Weight | 650 g (incl. rechargeable battery) |
| Power supply | 6‑cell rechargeable battery or 12 V mains unit |
The instrument can measure temperatures from –200 °C up to +800 °C.
It provides six probe inputs that can be freely assigned.
The rechargeable battery supports continuous operation with six thermocouple probes for about 8 hours.
The logger has 256 kB of memory, roughly 110 000 measured values.