175, 177, 179 
Users Manual 
4 
Table 1. Symbols (cont.) 
Symbol Description 
  Earth 
 
Capacitance 
 
Fuse 
P  Conforms to European Union directives. 
T  Double Insulated 
 
Low battery. Replace battery. 
 
Minimum fuse interrupt rating. 
R  Continuity test or continuity beeper tone. 
P  Conforms to European Union directives. 
) 
Certified by CSA Group to North American safety 
standards. 
  Certified by TÜV SÜD Product Service. 
 
Conforms to relevant Australian Safety and EMC 
standards. 
à 
Conforms to relevant South Korean EMC 
Standards. 
Table 1. Symbols (cont.) 
Symbol Description 
 
Measurement Category II is applicable to test and 
measuring circuits connected directly to utilization 
points (socket outlets and similar points) of the 
low-voltage MAINS installation. 
 
Measurement Category III is applicable to test and 
measuring circuits connected to the distribution 
part of the building’s low-voltage MAINS 
installation. 
 
Measurement Category IV is applicable to test and 
measuring circuits connected at the source of the 
building’s low-voltage MAINS installation. 
~ 
This product complies with the WEEE Directive 
marking requirements. The affixed label indicates 
that you must not discard this electrical/electronic 
product in domestic household waste. Product 
Category: With reference to the equipment types in 
the WEEE Directive Annex I, this product is 
classed as category 9 "Monitoring and Control 
Instrumentation" product. Do not dispose of this 
product as unsorted municipal waste.