The Dinsafer Helio DSKH4 is a wireless photoelectric smoke detector designed as an accessory for the Helio smart alarm system. It uses a unique MCU and photoelectric signal design to detect both smouldering and flaming combustion smoke while resisting false triggers from dust, insects, and optical interference.

When smoke density reaches the alarm threshold, the built-in photoelectric sensor activates the alarm at ≥85 dB at 30 cm and transmits a wireless signal to the Helio main panel. The detector is certified to BS EN 14604:2005 and runs on a single 9 V battery.

Key Features

• Photoelectric smoke detection — responds to both smouldering and flaming smoke
• Dust-proof, pest-proof, and anti-optical-interference MCU design
• BS EN 14604:2005 certified
• ≥85 dB alarm sound at 30 cm
• Wireless transmission at 433.92 MHz, up to 500 m without obstacle
• Low battery warning
• Powered by 9 V battery (1 × 6F22 / 6LR61)

Product Benefits

• Photoelectric detection catches slow smouldering fires that may produce significant smoke before open flame develops
• Dust and pest resistance reduces nuisance alarms from environmental contaminants in kitchens or utility rooms
• BS EN 14604:2005 certification confirms the sensor meets European standards for residential smoke alarms
• The compact circular form (Ø 107 mm × 34 mm depth) fits discreetly on a ceiling without requiring a separate base or relay
• 500 m transmission range ensures the signal reaches the Helio panel even across multi-storey properties

Technical Specifications

• Model: DSKH4
• Working Voltage: DC 9 V
• Battery: 9 V (1 × 6F22 / 6LR61)
• Working Current: ≤100 mA
• Standby Current: ≤20 μA
• Alarm Sound: ≥85 dB at 30 cm
• Certification: BS EN 14604:2005
• Transmission Distance: 500 m (without obstacle)
• Transmission Frequency: 433.92 MHz
• Working Temperature: -10°C to +50°C
• Humidity: ≤90% rh (non-condensing)
• Weight: 98.7 g (without battery); 134.5 g (with battery)
• Dimensions: Ø 107 mm × 34 mm depth

Why You'll Love It

• Integrates directly with the Helio panel — smoke detection triggers the full system response, including siren and app alert
• The circular disc form factor installs flush on any standard ceiling junction box in minutes
• At ≤20 μA standby current, the 9 V battery provides extended service between replacements
• A single unit type handles both smouldering and flaming fires, avoiding the need for multiple detector types