VQ1 -  Pellistor 
															Pair – 2v/300mA
															
															
															VQ2 - Pellistor 
															Pair – 2v/175mA
															
															
															VQ3 -  Pellistor 
															Pair – 2.5v/335mA
															
															
															VQ5 - Thermal 
															Conductivity 
															Pellistor Pair – 
															2v/175mA
															
															
															VQ6 -  Thermal 
															Conductivity 
															Pellistor – 2v
															
															
															VQ10 - Pellistor 
															Pair – 2v/175mA
															
															
															VQ11 -  Pellistor 
															Pair – 2v/300mA
															
															
															VQ21 - Pellistor 
															Pair with Poison 
															Resistance  - 
															2v/300mA
															
															
															VQ21T - 
															Pellistor Pair 
															with Poison 
															Resistance – 
															2v/300mA
															
															
															VQ22 - Pellistor 
															Pair with 
															Poison Resistance – 
															2v/175mA
															
															
															VQ23 - Pellistor 
															Pair with Poison 
															Resistance – 
															2.5v/335mA
															
															
															VQ25 - Pellistor 
															Pair with Poison 
															Resistance for 
															Hydrocarbons – 2v
															
															
															VQ31 -  Thermal 
															Conductivity 
															Pellistor Pair – 
															3.5v/90mA
															
															
															VQ35 - Thermal 
															Conductivity 
															Pellistor pair – 
															4.2v/55mA
															
															
															VQ41TSB - 
															 Ammonia Pellistor 
															Pair – 2v/100mA
															
															
															VQ500 -  Range 
															of miniature, 
															certified sensor 
															heads
															
															
															VQ548ZDW - Gas 
															sensor head for 
															mining type 
															applications
															
															
															VQ549ZDW - Gas 
															sensor head for 
															mining type 
															applications
															
															
															VQ600 - Series 
															of Certified gas 
															detection heads for 
															0 to 100% 
															combustible gases 
															and 0 to 100% volume 
															in Thermal 
															Conductivity mode