JUNG FMFS1S Wireless Solar Sun Sensor

Outdoor brightness control often requires complex wiring and battery replacements. The JUNG FMFS1S Wireless Solar Sun Sensor eliminates both by using an integrated solar cell and EnOcean wireless technology to transmit light levels to compatible actuators and gateways.

Who is it for

Installers and homeowners seeking a maintenance-free solution for automatic sun shading, lighting, or HVAC control based on outdoor brightness. Ideal for retrofits where wiring is impractical.

Main features

• Self-powered via integrated solar cell – no batteries or wiring needed
• Wireless communication using Eltako-Funk (EnOcean standard) at 868.3 MHz
• Measures brightness from 0 to 100,000 lux
• Immediate transmission on brightness change greater than 1000 lux or 10%
• Minimum transmission interval of 10 minutes, maximum 100 minutes when no change
• Outdoor range up to 100 m free field, indoor up to 30 m
• IP54 protection for outdoor use
• Operating temperature from -20°C to +50°C
• Wall-mountable with UV-resistant plastic housing in white/light grey

Specifications

• Wireless Technology: Eltako-Funk (EnOcean Standard)
• Operating Frequency: 868.3 MHz
• Power Source: Integrated Solar Cell
• Brightness Measurement Range: 0 - 100,000 Lux
• Transmission Interval (Brightness Change): Immediate (on >1000 Lux or >10% change)
• Minimum Transmission Interval: 10 minutes
• Maximum Transmission Interval (No Change): 100 minutes
• Outdoor Range: Up to 100 m (free field)
• Indoor Range: Up to 30 m
• Protection Class: IP54
• Operating Temperature: -20°C to +50°C
• Mounting Type: Wall Mount
• Housing Material: UV-resistant Plastic
• Color: White/Light Grey
• Compatibility: Eltako Wireless Actuators and Gateways

Tips

Mount the sensor on a south-facing wall for optimal solar charging. Pair it with Eltako wireless actuators to automate blinds or awnings based on sunlight intensity.