Manual hand operated siren , Air Raid Hand Crank Loud Alarm (LK120) Wholsesaler of multimeters 3M™ Cool Flow™ Valve: Proprietary

3M™ Cool Flow™ Valve: Proprietary exhalation valve reduces breathing resistance and minimizes heat and moisture build-up

Ideal for industrial

Duty Cycle Range: 0

Illuminance Range: 0 to 20

Manual hand operated siren , Air Raid Hand Crank Loud Alarm (LK120) Wholsesaler of multimeters 3M™ Cool Flow™ Valve: ProprietaryThis is a portable, no power required siren designed for emergency signaling. Model: LK 120 Sound Rating: 1202 dB(A) @ 1M Sound Type: Continuous Output Frequency: 60020Hz (dependent on rotation speed) Effective Range: 1500M 2000M Material: Aluminum alloy Weight: 8KG 9KG Features: No power supply required, foldable, portable, hand cranke Details: Security Alarms Are batteries needed to power the product or is this product a battery: No Is this a