Light 1Wire-UNI - Light sensor
€109.30
Precise Light Intensity Monitoring with the Light 1Wire-UNI
Accurate monitoring of light intensity in indoor environments is essential for applications such as server room monitoring, access detection, or monitoring of photovoltaic panels. The Light 1Wire-UNI is a compact light intensity sensor specifically designed for indoor use.
With a measurement range of 0–100%, easy installation via the 1-Wire UNI interface (RJ11), and compatibility with Poseidon and Ares units, this sensor provides a reliable solution for industrial and SoHo IT environments. It enables the detection of changes in lighting, such as monitoring when lights are switched on or off in rooms, or measuring the illumination of photovoltaic panels. Below is a detailed description of the Light 1Wire-UNI, including its technical specifications, areas of application, and advantages.
Overview of the Light 1Wire-UNI
The Light 1Wire-UNI is a simple light intensity sensor that uses a high-quality semiconductor element and is designed for use with Poseidon and Ares units via the 1-Wire UNI interface (RJ11). It is intended for indoor use and offers a protection rating of IP23. Each sensor has a unique serial number, allowing multiple sensors to be connected in parallel on a single RJ11 bus.
With a 3-meter long cable, the sensor offers flexibility in positioning. Communication takes place via the 1-Wire UNI interface, enabling easy integration into monitoring systems, such as through SNMP or Modbus/TCP protocols when used with Poseidon units.
The Light 1Wire-UNI is powered via the 1-Wire interface with 5 V and is compatible with devices like the Poseidon2 3268, Poseidon2 3468, Poseidon2 4002, Ares 12 LTE, and others. With compact dimensions of 9 × 80 × 5 mm and a weight of 58 g, the sensor is ideal for wall or rack mounting in server rooms or other indoor spaces.
Technical Specifications
The Light 1Wire-UNI offers a range of features that make it an excellent choice for light intensity monitoring:
- Measurement Range:
- Light intensity: 0–100%, accuracy ±10%, resolution 1%
- Sensing Element: Semiconductor – known for high precision and stability
- Protection Rating: IP23, suitable for indoor use
- Interface: 1-Wire UNI with RJ11 connector, compatible with Poseidon and Ares units
- Power Supply: 5 V via RJ11 (from 1-Wire)
- Power Consumption: Low 10 mA – ideal for energy-efficient applications
- Operating Environment: –30 °C to +85 °C, 0–100% relative humidity
- Storage Environment: –30 °C to +60 °C, 5–95% relative humidity
- Dimensions and Weight: 9 × 80 × 5 mm (W × H × D), 58 g
- Cable: 3 meters
- Installation: Wall or rack mounting with mural design
- Warranty: 24 months
Its simple construction and ability to connect multiple sensors in parallel make the Light 1Wire-UNI especially versatile for monitoring systems with multiple measurement points.
Applications
The Light 1Wire-UNI is suitable for a wide range of applications, particularly in environments requiring simple and reliable light monitoring:
- Server Room Monitoring: Detect lighting changes to monitor when lights are switched on or off, which can indicate room entry or exit (e.g. email alerts when light changes occur)
- Access Detection: Use in cabinets or rooms to detect unauthorized access via changes in light
- Photovoltaic Monitoring: Indicative measurement of illumination levels on photovoltaic panels, in combination with Ares units
- Environmental Monitoring: Measurement of indoor brightness, such as distinguishing day/night in residential or office environments
- Broad Monitoring Systems: Integration into networks with multiple sensors for comprehensive environmental tracking
Compatibility with Poseidon units enables seamless integration into advanced monitoring systems providing real-time data and alerts via protocols such as SNMP or Modbus/TCP. Easy setup using RJ11 simplifies deployment in existing systems.
Advantages of the Light 1Wire-UNI
The Light 1Wire-UNI offers numerous benefits that distinguish it from other light intensity sensors:
- Easy Installation: RJ11 connector and 3-meter cable allow quick and flexible setup
- Multi-Use Support: Multiple sensors can be connected in parallel on one RJ11 bus thanks to unique serial numbers
- Compatibility: Seamless integration with Poseidon and Ares units for power and data communication
- Energy Efficiency: Low power consumption of 10 mA ensures sustainable operation
- Compact Design: Small size (9 × 80 × 5 mm) and low weight (58 g) enable flexible installation
- Application Versatility: Ideal for server room monitoring, access detection, and photovoltaic monitoring
Installation and Operation
Installing the Light 1Wire-UNI is straightforward. The sensor is connected via RJ11 to a Poseidon or Ares unit, which provides both power (5 V) and data communication through the 1-Wire UNI interface.
The 3-meter cable allows flexible positioning, such as on walls or in racks. Thanks to its unique serial number, multiple sensors can be operated in parallel on a single bus. Integration into monitoring systems is simple due to compatibility with communication protocols such as SNMP or Modbus/TCP (on Poseidon units). The IP23 protection level ensures reliable indoor operation, while the compact design allows unobtrusive installation.
The Light 1Wire-UNI is a simple and reliable solution for light intensity monitoring indoors. With its 0–100% range, RJ11 plug-and-play installation, and compatibility with Poseidon and Ares units, it offers accuracy and flexibility for various uses such as server room control, access detection, and PV system monitoring.
Its compact build, energy efficiency, and support for parallel sensor use make it an excellent choice for organizations requiring reliable light data and durable, maintenance-free technology.
Technical Parameters:
- Output signal: 0 – 100%
- Operating temperature: -40°C to +85°C (-40°F to +185°F)
- Sensor dimensions: 78 × 9.5 × 6 mm
- Cable length: 3 m
- Mounting hole: Ø3 mm
- Application: Indoor use
- Unique serial number for each sensor
Interfaces:
- 1-Wire UNI bus communication
- RJ11 connector
- Signals: Data, GND, +5V
- Multiple sensors can be connected in parallel to one port
- Compatible with Poseidon, Ares and other HW group products
Wiring:
- RJ11 to RJ12 pinout mapping:
- Pin 2 (RJ11) ↔ Pin 3 (RJ12): Data (1-Wire)
- Pin 3 (RJ11) ↔ Pin 4 (RJ12): GND (System Ground)
- Pin 4 (RJ11) ↔ Pin 5 (RJ12): +5V (Power Supply)
Topology Options:
- Star topology: 60 m total
- Daisy-chain topology: 60 m total
- 4x active ports: 4×60 m possible
- Two RJ11 connectors on some sensors
Applications:
- Day/Night distinction
- Presence detection in server rooms (light switched on)
- Simple light intensity measurement in indoor environments
Monitoring devices
Other available sensors
Extension units
Accessories
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
