Pila o Batería de 3 voltios formato CR2450 (consultar compatibilidad en la pestaña CONTENIDO DE LA CAJA) para poder saber para que sensor o accesorio compatible te servirá como reemplazo
Energizer Coin Cell Battery 3V Size CR2450 Lithium (2 pack)
Pila Cr2450 2450 Litio Lithium 3 Volts Ø24mm X1unid.
Can I replace an CR2430 battery with a CR2450? - Quora
Duracell Security Battery 2450 3 volts 1 pk #VSHE3037769, DL2450B
Pila Cr2450 3V Panasonic
Pila Cr2450 2450 Litio Lithium 3 Volts Ø24mm X1unid.
CR2430 vs CR2450: Is there any differences between them?
Energizer EL1CR2BP - CR2 3V Lithium Battery, 1-Pack - Alarm Grid
Energizer Lithium Coin Blister Pack Watch/Electronic Batteries, 1 Count (Pack of 2) : Health & Household
Panasonic CR2450 3 Volt Lithium Coin Cell Battery - 10 Batteries