The wireless gong transmitter with an extreme range. Meets the highest demands on functionalityProduct features:Wireless transmitter colour: white plastic for all MISTRAL and ECHO M gongs 500m* range, 868.35 MHz call forwardingTechnical specifications:Technical specifications range 500m*, transmission frequency 868.35 MHz transmitter: batteries 2x1.5V (type LR03/AAA, included in delivery) or 8-12V= (via terminal) typical battery life: transmitter 5-10 years, dimensions: recommended 180x140x50 mm, transmitter 36x100x17 mmwaterproof LED function control incl. battery. 2x1.5V (type LR03/AAA-Alkaline), long service life IP 54Installation note:Transmitter can be screwed on or hung up with a clip Compatible with almost all intercom/bell systems (call forwarding as standard) Control unit easily accessible A neutral cover cap for the transmitter is included, especially for installation with call forwarding.Note:*Walls, doors, metal parts, etc. can noticeably reduce the range! If necessary, use a distance multiplier by installing additional radio sets
