Bosch GTC 400 C Professional Thermal Camera

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The Bosch GTC 400 C Professional Thermal Camera measures and visualises temperature differences in seconds and documents results easily . It features a 160×120 pixel infrared sensor delivering 19,200 measurement points, <50 mK thermal sensitivity (NETD), measurement range of -10°C to +400°C, and accuracy of ±3.0°C . The 3.5-inch colour display shows clear thermal images. Picture-in-picture technology overlays real and thermal images for easy localisation of temperature differences . Built-in Wi-Fi hotspot and MicroUSB enable fast data transfer . The Bosch ThermalOn app documents and forwards measured values quickly . Dual Power Source allows operation with a 12V Li-Ion battery or 4 x AA alkaline batteries, with storage for up to 500 images . IP53 dust and splash protection for jobsite durability . Supplied in L-BOXX 136 with accessories . Suitable for electricians, HVAC installers, plumbers, building inspectors, and energy consultants. The measuring tool must not be used for human medical purposes .
Description

Table of Contents

Bosch GTC 400 C Professional Thermal Camera

PRIMARY USES

1. Thermal Imaging for Building Inspection and Diagnostics
Primary Use: A professional thermal imaging camera (measurement range -10°C to +400°C, 160×120 IR sensor) used for visualising temperature differences in seconds. Essential for inspecting insulation, heating systems, heat flow, and locating overheated parts .
How it helps: For electricians, plumbers, HVAC installers, and building inspectors, the thermal camera makes invisible temperature differences visible through colour-coded thermal images. The 160×120 pixel infrared sensor provides 19,200 measurement points for detailed thermal analysis . The thermal sensitivity of <50 mK (NETD) enables visualisation of even the finest temperature differences . The large 3.5-inch colour display delivers clear and immediate results on site .
2. Insulation and Heat Loss Detection
Primary Use: Identifies thermal bridges, missing insulation, and areas of heat loss in buildings for energy efficiency assessments .
How it helps: The camera quickly reveals areas where insulation is inadequate or missing, allowing energy consultants and building contractors to provide clear visual evidence to clients. The picture-in-picture technology overlays thermal and real images for easy localisation of temperature differences .
3. Heating System and Plumbing Diagnostics
Primary Use: Inspects radiators, underfloor heating systems, and plumbing for blockages, leaks, and uneven heat distribution .
How it helps: The camera visualises heat flow through radiators and pipes, quickly identifying cold spots, blockages, or leaks . This supports fast diagnosis of heating system issues without destructive inspection, reducing troubleshooting time.
4. Electrical System Inspection
Primary Use: Locates overheated electrical components, loose connections, and overloaded circuits .
How it helps: Electrical faults often manifest as heat before failure. The thermal camera identifies hotspots in distribution boards, junction boxes, and electrical panels, enabling preventive maintenance and reducing fire risk.

SECONDARY USES

1. HVAC System Inspection: Checks ductwork, heat exchangers, and air conditioning units for performance issues and insulation faults .
2. Window and Door Installation: Identifies drafts and air leaks around windows and doors for weatherisation and quality control .
3. Leak Detection: Locates leaks in plumbing and heating systems by identifying temperature anomalies.
4. Building Surveying and Pre-Purchase Inspections: Provides visual documentation of building condition for property assessments and client consultations .
5. Construction Quality Control: Verifies correct installation of insulation, heating systems, and building envelope components.
6. Documentation and Reporting: The integrated Wi-Fi hotspot and ThermalOn app enable fast image transfer, documentation, and reporting for client consultations and project records .
About brand
**Bosch** is a leading German brand founded in **1886**, renowned for its high-quality, innovative, and reliable engineering solutions. In the hardware industry, Bosch is best known for its durable power tools, measuring equipment, and accessories, trusted by professionals and DIY users worldwide. With a strong focus on performance, precision, and innovation, Bosch continues to set the standard for quality in construction, manufacturing, and home improvement.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: Thermal imaging camera; not a medical device .
  • Designation: Bosch GTC 400 C Professional
  • Order Number: 0.601.083.171 (variant dependent) 
  • IR Sensor Size: 160 x 120 pixels 
  • Number of Measuring Points: 19,200 
  • Measurement Range: -10°C to +400°C 
  • Thermal Sensitivity (NETD): < 50 mK 
  • Accuracy: ± 3.0°C 
  • Field of View (FOV): 53° x 43° 
  • Country of Origin: China

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Primary Action: Measures and visualises surface temperature differences via infrared sensor technology .
  • Resolution: 0.1°C 
  • Minimum Focus Distance: 0.3 m 
  • Display: 3.5-inch colour display 
  • Image Modes: Thermal image, real image, picture-in-picture 
  • Memory: Internal memory, stores up to 500 images 
  • File Format: .jpg 
  • Data Transfer: Wi-Fi hotspot, MicroUSB 
  • App Compatibility: Bosch ThermalOn app for documentation and data transfer 
  • Software: GTC Transfer Software for PC 
  • Power Supply: 12V Li-Ion battery (GBA 12V / 10.8V) or 4 x 1.5V AA alkaline batteries 
  • Dust and Splash Protection: IP53 
  • Operating Temperature: -10°C to +45°C 
  • Storage Temperature: -20°C to +70°C 
  • Tool Dimensions (L x W x H): 95 x 233 x 63 mm 
  • Weight: 0.54 kg 

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Preparation: Insert 12V Li-Ion battery or 4 x AA alkaline batteries. Power on using the trigger button .
  • Usage Instructions: Aim the camera at the target area. Squeeze the trigger to capture a thermal image. The display shows the thermal image with colour-coded temperature distribution. Use the click wheel to adjust functions and settings . The integrated visual camera simultaneously captures a real image for reference .
  • Image Viewing: Selectable viewing modes including thermal image only, real image only, picture-in-picture, and side-by-side comparison .
  • Documentation: Connect to the Bosch ThermalOn app via Wi-Fi hotspot for fast data transfer and reporting . Transfer images to a computer via MicroUSB cable and GTC Transfer Software .
  • Storage Conditions: Store in a dry, secure place within -20°C to +70°C.
  • Cleaning: Clean housing with soft, dry cloth. Clean lens carefully with appropriate lens cleaning materials.

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Safety Classification: Thermal imaging camera; no laser hazard. No special safety precautions required beyond normal use. Contains no moving parts.
  • Environmental Protection: IP53 dust and splash protection for jobsite durability .
  • Regulatory: Complies with relevant CE and UKCA standards.
  • Battery Safety: Use only recommended battery types (GBA 12V / 10.8V Li-Ion or AA alkaline). Do not short-circuit or dispose of in fire.
  • Non-Medical Use: The measuring tool must not be used for human medical purposes .

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store in L-BOXX 136 in a dry, secure place. Remove batteries if storing for extended periods.
  • Inspection: Regularly inspect camera lens for cleanliness. Check functionality before use.
  • Usage: This is a thermal imaging camera, not a power tool. Contains no moving parts or cutting elements. Use with reasonable care to avoid dropping.
  • Transport: Use supplied L-BOXX 136 for safe storage and transport .
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Operational Safety: This is a measuring tool, not a power tool. Contains no moving parts or cutting elements. Use with reasonable care to avoid dropping.
Battery Safety: Use only recommended battery types (12V Li-Ion or AA alkaline). Do not mix old and new batteries. Remove batteries if device will not be used for long periods.
Maintenance: Clean camera lens with a soft, dry cloth or appropriate lens cleaning materials. Do not use aggressive cleaning agents. Have repairs performed only by authorised service centres.
Training requirement: No specialised training required. Basic instruction on capturing thermal images, interpreting colour-coded temperature data, and using the ThermalOn app for documentation is recommended.
Non-Medical Use: This device is a professional measuring tool and must not be used for human medical purposes .

2. FIRST AID MEASURES

Eye Exposure: Not applicable for normal use.
Skin Contact: Not applicable for normal use.
Battery Leakage: Avoid skin contact with battery acid. Wash affected area with soap and water. Seek medical attention if irritation occurs. If acid enters eyes, rinse with plenty of clean water for at least 15 minutes and seek immediate medical attention.
Inhalation: Not applicable for normal use.
Ingestion: Not applicable for normal use.

3. FIRE FIGHTING MEASURES

Flammability: The tool is predominantly plastic and electronics, which are flammable. Batteries may leak or rupture if exposed to high temperatures.
Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide (CO₂) for fires involving tools.
Fire Response: In event of fire, evacuate the area and call emergency services. Use appropriate extinguishers. Do not inhale fumes from burning batteries or plastics.