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Grothe Doorbells and Chimes

The Grothe Mistral chimes are remarkable, both in the quality of their manufacture and the options they offer. The range covers both battery versions and plug-in units (these take their power from a mains socket) The battery units can be either wall mounted or portable, and they are supplied with a selection of 12 front motifs, which are placed behind an attractive slightly frosted front panel. Just select the motif that suits the room or include your own. The front panel is hinged, and can easily be opened to adjust the 17 sound options, light options or perhaps mute the chime. The bell push buttons are uniquely robust, with no flimsy plastic catches to break, in fact, the push is opened with a small Allen key (provided), and the unit is particularly weatherproof. The sounds are good quality (you can listen to the actual recorded sounds from a real chime unit below) with interesting options of a dog bark, and an alarm setting which can be set for continuous sound in special alarm situations. Technically, these chimes have several unique features :
  • The standard bell push has very long range of 250m but their is an optional 600PSE Power Sender bell push with a extraordinary 500m range. These pushes are powered, not by the usual small 20p coin sized batteries (CR20320), but 2, AAA batteries offering up to 8 years operation in typical use
  • The bell pushes have terminals inside them which allow them to be used as Wired to Wirefree Extenders. If connected, these units will send a signal from a traditional wired bell push button, or link into an existing wired bell system to offer a wireless extension of several chime units.
  • The batterey chime units and the bell push buttons have terminals inside them that allow a connection between them. In this mode the bell push can be used as a signal booster to extend the range of the system. In fact, this combination can be "Daisy Chained" to almost any length for particularly problematic environments.
  • Again, uniquely for a wireless doorbell, the battery chime unit can be powered via a standard 8v a/c mains doorbell transformer (rather than just a plug-in adapter). The bell push can also be externally powered via a 8v - 12v dc supply. An example of where this may be useful is where the internal wiring from a wired bell push button has failed, and a combination of using the bell push in a Wired to Wirefree Extender mode and the chime unit connected to a transformer will mimic a wired system.
  • Other significant features are that the chimes operate at the rarer 868MHz range, they will remember the frequencies of up to 20 bell pushes, and they include a strobe light function useful for the hard of hearing.

The only slightly negative aspects of the range are that the bell pushes are quite heavy and cannot be attached by adhesive tape, but must be screwed to the door frame or wall, and also that there is no choice in the style of bell push. There are no options for chrome, brass, bronze or black, other than by connecting the terminals inside the push unit to traditional wired (non-illuminated) bell pushes.

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Mistral Wireless Range
Mistral Wireless Range