We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular replacement battery for MCS-740 and SR-720 PG2 sirens

Cameron Sino MCS-740 replacement battery for SR 720 PG2 and SR-740 PG2 sirens

SKU CH-36TT-AE9YH MPN MCS-740

Replacement battery provides backup power for MCS-740, SR 720 PG2 and SR-740 PG2 siren systems

  • Reliable backup power for MCS-740 and SR 720 PG2 sirens
  • Secure fit maintains full operational readiness during power outages
  • High-quality maintenance-free cells maximise battery lifespan
  • Meets or exceeds original specifications for consistent performance
  • Simple replacement process for qualified technicians

Compatible Siren Models

This Cameron Sino replacement battery is designed for the MCS-740, SR 720 PG2 and SR-740 PG2 siren systems. It provides backup power to maintain audible alert functionality during mains power outages. The unit uses maintenance-free cells built to meet or exceed original manufacturer specifications. It is intended for critical emergency warning equipment requiring reliable standby energy.

Verify Model Before Ordering

Confirm that your siren unit is exactly the MCS-740, SR 720 PG2 or SR-740 PG2 before purchasing. The battery is engineered for a secure fit only in these listed systems. Installation must be carried out by qualified personnel to ensure correct electrical connections and safe operation. Using this battery in unlisted models may result in improper fit or failure to power the alert.

Sustained Standby Reliability

The maintenance-free cell construction is designed to maximise lifespan during long periods of float charge. It delivers consistent voltage output when the siren activates during an extended power loss. Performance remains stable across repeated charge and discharge cycles typical of emergency standby duty. The design prioritises dependable readiness over high-rate burst delivery.

Highlights

  • Reliable backup power for MCS-740 and SR 720 PG2 sirens
  • Secure fit maintains full operational readiness during power outages
  • High-quality maintenance-free cells maximise battery lifespan
  • Meets or exceeds original specifications for consistent performance
  • Simple replacement process for qualified technicians

Specifications

BrandCameron Sino
ModelMCS-740, SR 720 PG2 sirens, SR-740 PG2

Questions about this item

Does the MCS-740 battery include mounting hardware or is that purchased separately?

The replacement battery is supplied as a single unit designed for direct fitment into the compatible siren enclosures; additional mounting hardware is not included and would be sourced separately if required.

Which Cameron Sino battery model covers both the SR 720 PG2 and SR-740 PG2 sirens?

The MCS-740 model is specified as compatible with the MCS-740, SR 720 PG2 and SR-740 PG2 siren systems, so a single part number serves all three.

How does this battery maintain the siren's audible alert during a mains power failure?

Built with maintenance-free cells that meet or exceed the original specifications, it delivers consistent backup power to keep the siren fully operational when the main supply is lost.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.