Visual tire cap pressure gauge---SP8118A

Specifications

Visual tire cap pressure gauge

instructions:
1. unscrew existing valve cap.
2. set tyre pressure to manufacturer's recommendation.( tyre must be cold )
3. screw indicator cap onto valve by hand.
4. check regularly to monitor pressure.
5. if red indicator is above the green,yourtyre has lost pressure.
6. re-inflatee the tyre to correct pressure.
7. keep cap clean to make checking easy.
Notice: on motorcycles, please check wheel rotates freely after fitting