As well as electric window openers we provide manual window openers.Our manual remote opening systems are ideal for single or multiple high level windows by using a remote handle.Manual window openers are sutable for a variety of windows including: * Side hung * Top hung * Bottom Hung Open In or Out * Skylight and Roof WindowsThese manual window openers are designed for both commercial and domestic applications and are traditionally used in schools.Manual window openers can be used in buildings for a cost effective solution where wiring is not always an option