Solar systems reach an increasingly high degree of efficiency but in many cases they can still further increase their efficiency through regular and professional maintenance. The test box is a professional service box for checking solar thermal systems quickly and easily. Problems affecting system operation can be detected reliably with the help of these measuring and testing devices.

• Content of the test box
• Test and indication badges
• Compass
• pH-test strips
• Screwdriver with voltage control
• Mini screwdriver
• Manometer
• Handheld refractometer
• Digital multimeter