There are some basic "Door Open" door alarms and some Temperature Sensing alarms available, but these didn't accomplish what we wanted. "Door Open" alarms are annoying because they sound all the time the door is open, and Temperature alarms are not much help, because they respond too late. The Alectro Systems Door Alarm remains silent while the door should be open, then alerts you when it has been left open too long. |
Due to it's unique features and reliability, the Alectro Systems Door Alarm has found it's way into many diverse applications. The obvious one is Fridges and Freezers which contain food. Leaving these doors open too long can have costly consequences.
These devices are also extensively used in Medical, Institutional and Industrial applications. One of the US States purchased 500 of these alarms for their immunization program.
Below are some of our typical customers and applications:
To protect refrigerated medications and samples.
To protect refrigerated and frozen foods.
To prevent exit doors from being propped open, and cupboards from being left open.
Although it was initially designed for Freezers and refrigerators, the unit will easily mount on any door, wood, plastic or metal. We have customers who use the device on entrance doors to prevent them from being propped open.
The delay features ensures that the alarm remains silent while you are accessing supplies. This eliminates the annoyance of a constant alarm sound when it is not required.
If you forget to close the door, or don't close it properly, the alarm will sound to let you know. This too is accomplished by the delay feature which determines that the door has been open too long.
Installation is very easy and effective. Both the main unit and magnet are fastened using double sided tape. This tape is already attached to the device. You simply remove the protective film and press the alarm onto your surface. The adhesive is very strong, ensuring that it will stay attached.
The Standard unit has a delay, pre-set to about 5 seconds. This can be easily adjusted between 0 seconds and 21 minutes. Instructions are provided.
The Standard units are loud enough to be heard throughout an average 3 story house or small office. The sound pressure level is 85 db at 10cm. An industrial version is also available with a loud siren.
The DA20 is now has the ability to generate a low battery warning. Due to the very low current drain, when the door is open, and no current drain when closed, the unit typically provides more than a year of service under average operating conditions. It is supplied with a 9 volt alkaline battery.
The Alectro Systems Door Alarms are high quality devices, designed and manufactured in Canada. They come with a 1 year warranty.
Do you need a VERY LOUD door alarm? Although the standard version is perfect for most applications, some industrial areas require a very loud alarm.
The DA20 Siren is an add on option. This provides you with a system which produces a very loud alarm sound (115 db at 1 Metre).
The siren comes with a 1 foot cable which gets attached to screw terminals inside the main unit. Because there are no connectors, this improves reliability and eliminates the possibility or accidental disconnection.
The main unit and magnet can be attached using double sided tape (supplied) or fastened through screw holes. The siren is attached using screws.