329 DALI External Light Sensor

$874.70 inc. GST

The 329 DALI External Light Sensor, when used in conjunction with a Helvar Lighting Router based controls system, can provide energy savings by adjusting light levels based on the available daylight.

SKU: 329 Category:


Mount the 329 outdoors to monitor the level of daylight. For instance, bright sunlight will raise the overall light level in the rooms of a building. The sensor will detect this, and the system will reduce the energy levels supplied to the lamps. If the day then becomes overcast, the system will respond to the lower levels of ambient light by increasing the energy provided to the lamps. By profiling the building (measuring the daylight contribution per room), the system can be used to maintain an approximate constant light level, and
thereby reduce energy use.

The 329 is for mounting outdoors. The unit head assembly is waterproof when correctly installed and mounted vertically, and can tolerate a wide range of operating temperatures and conditions.

Key Features
• Open loop light control
• Light range of 1 lx – 100 000 lx
• Simple mounting
• Easy connection to Helvar router system

Additional information

Weight0.4 kg
Dimensions17 × 11 × 11 cm

Product Documents

Installation Manual

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