•Built in red light display 

•Large LCD display for easy reading
•Mini-size and lightweight
•Can be attached to key ring. It's a good choice for promotion
•Single key operation, manual ON/OFF, unit conversion, auto power off
•Four kinds of units in measuring pressure: PSI, Bar, Kgf/c㎡, Kpa
•One CR-2032, 3V lithium battery can last 24 months