Pressure-limit safety valvge; Indicator caps;visual tire cap pressure gauge;tire indicator cap:40psi/90psi

Pressure-limit safety valvge; Indicator caps;visual tire cap pressure gauge;tire indicator cap:40psi/90psi

INSTRUCTIONS FOR USE

1.Screw SMT8140 on valve stem. be certain tire is properly seated.

2.Put air hose on top of SMT8140 as shown and press down firmly and squarely. Air will be released into your tire thru.

3. When proper air pressure is reached a steady "hiss" sound will be heard. Continue air flow until sound is at a constant level.

Warning:

Never use safety valve on tires rated at pressures lower than the pressure rating stamped on safety valve SMT8140

Pressure-limit safety indicator cap