750MRL Smoke Alarm

The 750MRL smoke alarm is a mains powered optical smoke alarm with rechargeable lithium battery back-up and a PUSH-FIT docking base system; designed to ensure quick and easy installation of base unit to the mains feed supply at installation stage (1st fix) and for quick and easy connection of alarm to base unit (2nd fix). The PUSH-FIT base provides spacious room for wiring in premises such as flats where concrete ceilings can be problematic. Top and side entries accommodate for either cable or mini trunking installations.

The PUSH-FIT base can also be used with 230V smoke and heat alarms in the 650, 670 & 680 series and up to 12 compatible smoke and heat alarms can be linked for simultaneous warning.


  • 230V mains powered smoke alarm
  • Long life rechargeable lithium battery back-up
  • PUSH-FIT docking base (DS700 included)
  • Optical technology reduces nuisance alarms
  • Test and alarm pause button
  • Low battery warning
  • Multi-alarm interlink (up to 12 smoke and heat units)
  • LED operating indicators
  • Alarm source indicator
  • 5 year guarantee
  • BS EN 14604: 2005

Technical Specifications

Model number 750MRL (1 x 650MRL + 1 x DS700)
Description 230V smoke alarm with lithium battery bk-up
Technology Optical
Sensitivity N/A
Alarm sound level 85db at 3 metres
Battery type Rechargeable lithium battery
Operation AC/DC AC
Installation positions Ceiling
Operating temperature 5°C (40°F) to 38°C (100°F)
Operating humidity 10% to 85% relative
Storage temperature 5°C (40°F) to 38°C (100°F)
Storage humidity 10% to 85% relative
Guarantee 5 years
Dimensions Alarm = 133mm (D) x 38mm (H)Base = 140mm (D) x 33mm (H)
Unit weight Alarm = 213g, Base = 91g
Pack dimensions 141mm (H) x 141mm (W) x 58mm (D)
Pack weight 315g
Master pack quantity 10
Master pack dimensions TBC
Master pack weight TBC
Pack barcode 5022391064923
Outer barcode 15022391064920
Approvals BS EN 14604: 2005
Download datasheet_750MRL