Keterangan :
Specification
 Metric
 
 Scale Range	 	 0 - 500µ m
 Resolution	 	 10µ m
 Probe Type	 	 Integral only with auto switch on
 Accuracy	 	 ± 5% or ± 20µ m whichever is the greater
 Operating Temperature	 	 0 to 50º C
 Speed of Readings	 	 30 per minute
 Battery Life ( continuous) 	 	 20 hours
 Dimensions	 	 56 x 24 x 120mm
 Weight ( including Dry Batteries) 	 	 115g
 Part Numbers	 Ferrous Only	 A311FM
 Dual FNF	 A311FNFM
 Packing List	 	 Type 311F: Refinishing Gauge, 2 x LR03 ( AAA) alkaline batteries, Steel checkpiece, Foil, Carrying case & Operating instructions
 Type 311FNF: Refinishing Gauge, 2 x LR03 ( AAA) alkaline batteries, Steel checkpiece, Aluminium checkpiece, Foil, Carrying case & Operating instructions