Key facts
- Brand
- testo
- Model
- testo 400
- Documents
- 3
- Languages
- EN · ZH
- Last added
- 2023-10-16
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Testo 400/650/950 Measuring Instrument Instruction Manual
The document serves as a comprehensive user guide for the Testo 400, testo 650, and testo 950 measuring instruments. It details the initial operation of the device, including battery installation and safety precautions before use. The manual explains how to configure function buttons and menus to suit specific measurement tasks.
Read onlinetesto 400 specifications
| Temperature measurement range | -200 °C to +800 °C |
|---|---|
| Temperature resolution | 0.01 °C |
| Temperature accuracy | ±0.1 °C (‑49.9 °C to +99.9 °C) |
All testo 400 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What software version is described in this manual?
This documentation describes the Software Version 2.0.
From: Testo 400/650/950 Measuring Instrument Instruction Manual
Can the testo 650 and 950 be upgraded to full functionality?
Yes, these instruments can be subsequently upgraded to include the full range of functions of the testo 400.
From: Testo 400/650/950 Measuring Instrument Instruction Manual
How many measurement values can the standard memory store?
The standard memory can store up to 45 000 measurement values.
What is the operating temperature range of the instrument?
The instrument operates from 0 °C to ±50 °C (short‑term up to +60 °C).