Bosch D296 - Transmission range; Tamper

30 en | Specifications Long-range beam smoke detectors
2017.03 | 7.0 | F.01U.068.899 Installation manual Bosch Security Systems, Inc.
Transmission range 30ft. (9m) to 350ft. (107m)
Tamper Receiver: Access door tamper switch in series with trouble
contacts.
Transmitter: When the cover is removed, the cover tamper
switch interrupts transmission