XCELPLUS Siren Bell Box Alarm Battery intended for use with Pyronix DELTABELL used as a replacement for BATT-ES1, DELTABELL-WE, DELTABB-WE and LEDRKP / WHITE-WE, (BATT-ES1-2PCS): Amazon.co.uk: DIY & Tools
Amazon.com: VI VINTRONS Battery for Pyronix Enforcer Deltabell Siren Alarm, CR34615M, : Electronics