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CSL - Our Next Generation alarm signalling systems

CSL's simple and reliable alarm signalling products offer a professional and trusted solution for every grade of risk. They enable the safe delivery of alarms and data from the protected premises to the Alarm Receiving Centre.

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DigiAir Pro 3

Wireless 4G single-path signalling with unrivalled management tools.

Our single-path signalling solution utilises a 4G Radio path or a LAN path to signal an alarm. The Radio variant also comes with a standby SIM as a backup to safeguard your system. Each SIM operates on an independent network for total resilience. â€‹

GradeShift Pro 2

Wireless 4G dual-path signalling at any grade, with unrivalled management tools. Our dual-path signalling solution utilises a combination of two Radio paths or one Radio and one LAN path to signal an alarm. Each SIM operates on an independent network for total resilience.

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GradeShift Pro 2 Radio/Radio uses two active 4G WorldSIMs, each with its own radio module, one as the primary and one as the secondary path. A third standby SIM acts as a backup to the primary SIM on the primary path. GradeShift Pro 2 LAN/Radio uses LAN connectivity for its primary path and a 4G WorldSIM as its secondary path. A standby WorldSIM is also supplied.

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CSL Signalling Standards

The GradeShift Pro 2 and DigiAir Pro 3 operate to the  EN50136-1:2018/PD6669:2017/PD6662:2017 standards and in some cases exceed them​.

Product
Paths
EN SP & DP Classes
Catastrophic Failure Reporting
GradeShift Pro 2
LAN + Radio
DP4
3 minutes
GradeShift Pro 2
LAN + Radio
DP3
4 minutes
GradeShift Pro 2
LAN + Radio
DP2
31 minutes
GradeShift Pro 2
Radio + Radio
DP2
31 minutes
DigiAir Pro 3
LAN Only
SP2
25 hours
DigiAir Pro 3
Radio Only
SP2
25 hours
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Contact Us

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 Address. 112 High Road, East Finchley, London N2 9EB

Tel. 020 8442 0660

Office Opening Hours. Mon - Fri 08:45am - 05:45pm, Sat - Sun Closed

Showroom/ Shop open to customers by appointment only as from 1st February 2025

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Response to customers with maintenance contracts remains unaffected.
In the event you need assistance, please call the office as usual on 020 8442 0660.

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