Byron - BY201 Wirefree Portable Chime Kit 100m - BYRBY201
The Byron BY201 Wirefree Portable Chime Kit has a 100m range with 6 sounds and volume control. Over a million self-learning codes. Will keep the code even when the batteries run out and are replaced. Can have upto 6 bell pushes controlling the chime. 80-85dB rating depending on the sound.
F version also has a flashing light alert for the hard of hearing.
Chime requires 3 x AA batteries (NOT included).
Push requires 1 x CR2032 battery (included).