This document is the instruction manual for the testo 835 infrared and contact thermometer from the German brand testo. It mainly introduces the functions and features, safety precautions and operating methods of the product.
This manual covers the operation and safety guidelines for the testo 835 infrared and contact thermometer. It includes instructions for inserting batteries, setting language, connecting probes, and performing measurements. The device supports both non-contact infrared and contact thermocouple measurements, with optional humidity sensing in the H1 version. Technical specifications cover measurement ranges, accuracy, and environmental operating conditions.
The manual also details settings such as emissivity adjustment, memory management, alarm thresholds, and display customization. Safety precautions are emphasized, including avoiding live electrical parts and proper disposal of batteries. The device is designed for industrial and general use but not for medical diagnostics or explosive environments. This manual is written in German.
| Infrared Measurement Range | T1 / H1: -30 to +600 °C / -22 to +1112 °F; T2: -10 to +1500 °C / 14 to +2732 °F |
|---|---|
| Contact Measurement Range | T1 / H1: -50 to +600 °C / -58 to +1112 °F; T2: -50 to +1000 °C / -58 to +1832 °F |
| Humidity Measurement Range | 0 to 100 % RH (at -20 to +50 °C / -4 to +122 °F) |
| Operating Temperature | -20 to +50 °C / -4 to +122 °F |
| Battery Life | 25 h (typical at 25 °C / 77 °F without laser and display illumination) |
| Dimensions | 193 x 166 x 63 mm / 7.6 x 6.5 x 2.5" |
| Weight | T1 / T2: 514 g / 1.13 lbs (incl. batteries); H2: 527 g / 1.16 lbs (incl. batteries) |
| Warranty | 2 years |
Typical battery life is 25 hours at 25 °C / 77 °F without laser and display illumination.
Yes, only the H1 version includes an integrated humidity probe for measuring ambient humidity.
The warranty is 2 years, with terms available at www.testo.com/warranty.