Screwdriver Set (5 in 1 Tool kit) 16x4 when the WiFI module and

when the WiFI module and cell phone carrying on the router at the same time the signal transmission distance depends on router signal

suitable for sensing hydrogen concentrations in the air

please use this sensor only in controlled experiments

Logic Type:  Shift Register

an ear-clip

Screwdriver Set (5 in 1 Tool kit) 16x4 when the WiFI module andIntroduction : Light Weight, Compact, portable design, elegant and colorful looks Mobile Phone Tools Suitable for virtually all models of Mobile Phone. Fine workmanship, with the bearing swivel cap. The bearing drives the screw cap, with radian and the size feeling good. Features : Drive Type : 1. 5 + 1. 5 0. 8 T5 T6 Package Included: 1 x Precision Screwdriver Handle 5 x Screwdriver Bits (behind the hat: 4 screw heads, easy to carry)