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Geofire Doormouse Wall Mounted Electromagnetic Fire Door Holders

4.3 out of 5 stars
Choose a product To see stock availability
From: £26.75 inc VAT
£22.29 ex VAT
Product Overview

The Doormouse fire door holder from Geofire is a surface mounted electromagnetic door holder/retainer connected to the fire alarm panel. The unit sits on the wall behind a fire door and magnetically holds a steel plate fitted to the fire door. If a fire is detected or the power supply fails the fire door retainer releases the door and allows it to close.

  • 24V or 230V power supply option
  • Manual override release switch
  • Zero residual force
  • Approved to BS EN 1155 and CE marked
  • IP51 Protection
  • High quality cost effective package
  • Includes fitting instructions
Technical Data
Product Code

24V DC:  GF3870351

230V AC:  GF3870352

Brand Geofire
BS7273-4 Category

Category A

Dimensions (HxWxD)


Holding Force


Manufacturer Part Number

230V AC: 3-87-0371

24V DC: 3-87-0370

Supply Voltage

24V DC or 230V AC



Product Datasheets
FAQs (6)
Q. Does the Dooremouse wall mounted fire door holder type 87 require hard wiring to an alarm or control box?

Yes, the Doormouse does require hard wiring to the control box or alarm.

Q. Does the Dooremouse wall mounted fire door holder type 87 require hard wiring to an alarm or control box?

Yes, the Doormouse does require hard wiring to the control box or alarm.

Q. Is the Doormouse unit powered by batteries?

No, the Doormouse range have transformers fitted and do not therefore work with batteries.

Q. Can the 230VAC Doormouse door retainer be connected directly to a mains operated smoke alarm or is a panel alarm required?

Yes, the Doormouse can be directly wired to a mains powered alarm. The Ei3000 series alarms are compatible for this though you will need an Ei128R relay base unit to be able to make the connection.

Q. Do the floor mounted door holders have to be wired to the fire alarm system, or is the release mechanism activated by a loud noise?

The floor mounted fire door holder does have to be wired into the fire alarm panel as when the alarm sounds the magnet inside the unit moves and thereby releases the door. Dorgard is an alternative door closer that does not require wiring into the alarm system and is activated by the sound of the fire alarm.

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Pricing & Availability

Model Stock Price
230V AC
Product Code: GF3870352
Stock Level:
More than 20 in stock Expected dispatch: Tomorrow

£26.75 inc VAT

£22.29 ex VAT

24V DC
Product Code: GF3870351
Stock Level:
Available for pre-order Expected dispatch: 7th Dec

£27.83 inc VAT

£23.19 ex VAT

Delivery Options

The following delivery options are available on this product.

Economy Delivery

£3.19 inc VAT - Orders will be delivered in 2-3 working days with Evri

Next Working Day Delivery

£6.19 inc VAT - Orders will be delivered the next working day with Evri

For dispatch today order within

Customer Reviews

23 customers have given this product an overall rating of 4.3 out of 5

Reviews by real customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 4 / 5 Stars

Reviewed by: H H

No problems

Published on: 17th July 2022

Rating: 5 / 5 Stars

Reviewed by:

Good product and easy to install

Published on: 21st March 2019

Rating: 1 / 5 Stars

Reviewed by:

Short circuited and blew fuses Replacement took 8weeks.

Published on: 25th July 2017

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