testing keyboard for coin phone and door 1.Dimension:7cm*6.5cm*0.5cm( approx) 2.Size:6.54*6.4cm 3.weight:13.3g

For coin phone and the student major in software, also install in the door

•100% brand new and high quality •Small and compact in size •MR-MINI-4x4KEY is a 4x4 matrix keyboard module. It has 8 pins and 10 number 4 Letters on the interface •8-PIN MRconnect hole •+3.0V to +5VDC supply voltage •On-board pulled-up resistors •Four mounting holes on each corner •Dimension:7cm*6.5cm*0.5cm( approx)

Size:6.54*6.4cm

weight:13.3g

testing keyboard for coin phone and door