The Rothenberger RP Pro III is a compact & portable unit for rapid & accurate testing of pipework & systems. This model can test up to 40 bar (560 psi) in one operation, & multiple tests can be carried out with additional "lock-off" testing gauges. Especially precise reading is available, & testing hose with steel mesh prevents reading mistakes that can happen. Completing this product is a compact & robust plastic casing for comfortable handling & ease of use. Simple & comfortable, automatic pressure testing of piping systems, vessels & containers Compact & robust plastic casing for comfortable handling. Water used for testing can be direct from the mains or clean water from a water storage container can be used Suitable for testing water & oil systems Testing hose has reinforced steel mesh which stops the hose from expanding under high pressures preventing reading mistakes Glycerin cushioned pressure gauge absorbs vibration & pressure surges which makes pressure reading easier & more accurate.