Deheng's 10-Year Photoelectric Series:

10-Year Sealed Lithium Power: Deheng's 3V-battery smoke detectors with ultra-low standby current (≤10μA), eliminating battery replacements for a decade and reducing environmental waste by 90% vs. traditional models.

Deheng's 10-Year optical detectors operate flawlessly from 0°C to +40°C and ≤93% humidity, with dust/insect-resistant maze design