Manufactured from high quality polished steel. Ground finished points, a fine adjusting screw is mounted across the legs for setting the distance between the two points. A circular spring bow joins the legs, with a knurled extension attached for use when pivoting the dividers. Dividers are used for scribing arcs and circles, a light centre punch mark on the work keeps the pivot leg in the centre while marking.



Features and Benefits

• High quality polished steel with ground finished points

• Adjusting screw mounted across the legs for setting distance between points

• A light centre punch mark on the work keeps pivot leg in the centre while marking

• Ideal for use in scribing arcs and circle applications

As a chimney sweep, heating engineer or service technician you are required by law to abide to the rules and regulations (like the 1. BlmSchV – Ord. 1 of the Federal Immission Control Ordinance) which apply to your field and profession. You can rely on the testo 380 to help you to carry out your daily tasks because it is certified for use with solid, liquid and gaseous fuels as well as for the threshold values 1 and 2 according to 1. BlmSchV. The easy-to-use particle counter can take you through the preprogrammed measuring programm of the BlmSchV and save you heaps of time and hassle.

Your advantages
• Carry out parallel fine particle, O2 and CO measurements in real time
• Ideal for chimney sweeps and system technicians; easy-to-follow, step-by-step guide for carrying out measurements according to 1. BlmSchV
• Large, graphic colour display, easy to use, low running and maintenance costs
• Certified for use with solid, liquid and gaseous fuels as well as for the threshold values 1 and 2 according to 1. BlmSchV

Ultimate kit for all-round engineers in the field of heating, air conditioning, refrigeration and ventilation: The kit contains all the testo Smart Probes and is ideal for carrying out functional checks or for plant maintenance, in conjunction with your smartphone/tablet. The testo Smart App enables you to work more easily and efficiently: Automatically calculate numerous parameters such as superheating/subcooling, target superheat, cooling/heating power or differential temperature. Measurement data reports can be emailed directly as a PDF or Excel file.

Your advantages
• For all measurements involving heating, air-conditioning, refrigeration and ventilation systems
• All Smart Probes for temperature, pressure, humidity and flow in one kit
• Display of measurement data progression as a graph or table
• Transmission and analysis of measurement data via testo Smart App

• Measure voltage to 1000 V AC without test leads

• Simultaneously measure voltage and current

• 17.8 mm open fork is widest in the industry

• Measure up to 200 A on 4/0 wires (120 mm2)