The Staun Tyre Deflators can be used for all types of four wheel driving ranging from coastal sand driving, desert sand driving and rock climbing to mud driving. The standard tyre deflators are supplied at a preset pressure of 18psi, but this pressure can be adjusted to your desired level. How much you reduce your tyre pressure depends on a variety of factors, such as how much weight your tyres are supporting and the softness of the surface that you will be travelling on.
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This deflator has been designed to suit most 4WD deflation needs. Suitable for beach or bush pressures it comes preset at 18psi and is accurate to within 0.25psi.
It has an adjustment of 3psi per half turn and 6psi per full turn of the adjustment cap. Requiring 12 psi above its preset pressure to start automatically, they can be started manually by lifting the pin at as little as 2 psi above its preset pressure.