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AJMRTC SFM-20B High Decibel Active Buzzer Module, DC 3V-24V Continuous Sound Alarm, Electronic Beep Warning Module for Equipment Alert, Industrial Device & DIY Circuit Projects
- - SFM-20B high decibel active buzzer, outputs continuous loud alarm sound once powered on
- - Wide DC working voltage range 3V to 24V, fits most low and medium voltage control circuits
- - Active design, no extra oscillation circuit required, simple wiring for quick setup
- - Stable sound output, used for device fault reminder, safety warning and alarm triggering
- - Compact module, suitable for industrial equipment, control cabinet, DIY alarm and electronic experiment
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AJMRTC SFM-20B active buzzer module is a high-decibel continuous sound alarm component. It adopts active buzzer design, so it will emit constant beep sound directly after receiving DC power without extra signal circuit.
It supports wide voltage input from DC 3V to 24V, which matches various control systems. The loud sound can serve as warning reminder for equipment abnormal status, safety alert and fault notification. With simple two-wire connection, installation is easy for electronic prototype modification.
Commonly applied to control cabinets, smart devices, DIY alarm systems and student electronic experiment projects.
- Brand: AJMRTC
- Model: SFM-20B
- Type: Active Continuous Buzzer
- Operating Voltage: DC 3V ~ 24V
- Feature: High Decibel, Continuous Sound
- Function: Device Warning & Sound Alarm
- Application: Industrial Equipment, Control Cabinet, DIY Alarm, Electronic Projects
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
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