Testo 835-H1 Infrared Thermometer with Humidity Module
Product Introduction
The Testo 835-H1 is a versatile non-contact measurement tool designed to simultaneously measure surface temperature (-50 to +600 °C) and humidity, making it ideal for detecting thermal bridges, mold risks, and energy losses in buildings, as well as monitoring HVAC systems and industrial processes. Equipped with a built-in humidity module, 4-point laser aiming, and a 50:1 optical resolution for remote measurements, this thermometer combines precision with user-friendly operation. It stores 200 measurement sets, features adjustable emissivity for diverse surfaces, and includes customizable alarms and a backlit display for enhanced usability in any environment.
Product Features
Dual Measurement Capability:
Measures surface temperature (-50 to +600 °C) and relative humidity (RH).
Calculates dew point, dew point distance, and surface moisture (aw value) for mold risk assessment.
Precision & Remote Sensing:
4-point laser aiming pinpoints measurement areas to avoid errors.
50:1 optical resolution enables safe remote measurement (e.g., 5m distance = 10cm measurement spot).
Adjustable & Customizable Functions:
Emissivity adjustment (0.10 to 1.00) for accurate readings on metals, plastics, wood, etc.
Customizable upper/lower limits with sound-light alarms for immediate defect detection.
Data Management & Storage:
Stores 200 measurement sets with customizable location tags.
Backlit display with 30-second auto-off for visibility in low-light conditions.
Ergonomic Design:
ABS + PC housing for durability in industrial environments.
Joystick and button controls for intuitive operation.
Compact size (193 x 166 x 63 mm) for easy handling.
Expandable Capability:
Connectable external temperature probes for low-emissivity surfaces (optional).
Technical Specifications
| Parameter | Value |
| Measurement Range | Temperature: -50 to +600 °C; Humidity: 0 to 100% RH |
| Optical Resolution | 50:1 (distance:spot diameter) |
| Laser Aiming | 4-point laser for precise targeting |
| Emissivity Adjustment | 0.10 to 1.00 (user-selectable) |
| Storage Capacity | 200 measurement sets with location tags |
| Operating Temperature | -20 to +50 °C |
| Display | Backlit LCD (auto-off after 30 sec) |
| Housing Material | ABS + PC (impact-resistant) |
| Dimensions | 193 x 166 x 63 mm |
| Weight | Not specified (compact design) |
