Photoelectric smoke detector (wireless type)Can be used alone, or can be used with an alarm 

Smoke detection alarms are used to prevent fires by monitoring the concentration of smoke. When the concentration of smoke exceeds the limit, the smoke sensor will issue a sound and light alarm, and output a 433MHz wireless signal.

Smoke detectors are widely used in many fields including urban security, residential communities, factories, companies, schools, homes, villas, warehouses, resources, petroleum, chemical industry, gas distribution, and more. They are sensitive to smoke, so they have prevented many fires from happening!

The details of the new mini 3V battery model are as follows:

With English packaging and instructions, for export.

Product weight per unit: 120G without battery. Size: 9*9*3.8CM.

A box contains 100 pieces.

Crate Size: 56.5*25*41CM

Gross weight per box: 12.5KG (excluding batteries)

Technical parameters:

Working Voltage: 3V, Alkaline or Carbon (2 x AA batteries)

Static Current: ≤15uA

Alarm Current: ≤50mA

Smoke sensitivity: Level 2

Alarm sound: >80dB

Frequency: 433MHz (Optional 315MHz, please confirm)

Launching distance: ≥100m (open space)

Working temperature: -10℃ to 50℃

Humidity: 10%-90%RH

Battery life: 1 year - 3 years