RoHS Compliant Audible Alarms
Reviewed by: Jon Lowy, consulting engineer
Description
RoHS Compliant Audible Alarms are electronic devices designed to emit sound signals to alert users to various conditions or statuses. These alarms are compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring they contain minimal levels of hazardous materials such as lead, mercury, and cadmium. They are lightweight, typically ranging from 6 g to 16 g, and can produce sound levels from 85 dBa to 105 dBa at 10 cm, depending on the model series.
Working Principle
RoHS Compliant Audible Alarms operate by converting electrical energy into sound energy. They typically use piezoelectric or electromagnetic mechanisms to generate sound waves. When an electrical signal is applied, the piezoelectric material or electromagnetic coil vibrates, producing sound waves that are emitted through a diaphragm or speaker. These alarms are useful because they provide immediate auditory feedback, which can be crucial in environments where visual signals might be missed or ignored. The sound can be continuous, intermittent, or patterned to convey different levels of urgency or types of alerts.
Applications
RoHS Compliant Audible Alarms are used in a variety of specific applications, particularly in the medical field. Examples include:
- Hospital Beds: To alert staff of patient movements or needs.
- Drug Dispensers: To signal the completion of a medication cycle.
- Defibrillators: To indicate readiness or operational status.
- Dialysis Machines: To alert for operational issues or completion of treatment.
- Incubators: To monitor and alert for temperature or humidity changes.
- Surgery Equipment: To signal operational status or errors.
- Respirators and Ventilators: To alert for airflow issues or patient needs.
- Scanning Machines (CAT, MRI, X-Ray): To indicate operational status or errors.
Advantages over other Audible Alarms
RoHS Compliant Audible Alarms offer several advantages over non-compliant alarms. For instance, they are environmentally friendly due to the restriction of hazardous substances, making them safer for both users and the environment. Additionally, their lightweight design makes them easier to integrate into various devices without adding significant bulk. The range of sound levels (85 dBa to 105 dBa) ensures they can be heard in different environments, from quiet hospital rooms to noisier settings.
Limitations
Despite their advantages, RoHS Compliant Audible Alarms have some limitations. They may not be as loud as some non-compliant alarms, which could be a drawback in extremely noisy environments. Additionally, the need to comply with RoHS standards might limit the materials and designs that can be used, potentially affecting performance or durability in some cases.
Considerations
When selecting RoHS Compliant Audible Alarms, several factors should be considered:
- Initial Costs: These alarms might have higher initial costs due to the need for RoHS compliance and certification.
- Operating Expense: Generally low, but dependent on the specific application and usage frequency.
- Durability: While designed to be durable, the materials used to comply with RoHS standards might affect longevity in harsh environments.
- Accuracy: High accuracy in sound emission and consistency, crucial for medical and safety applications.
- Replacement and Maintenance Costs: Typically low, but regular checks are necessary to ensure continued compliance and functionality.
from RS Components, Ltd.
RS PRO MC-03 Window & Door Alarm [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
ABUS Security-Center AZWG10030 [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 10.5 to 28
from RS Components, Ltd.
ABUS Security-Center AZSG10020 Siren [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 12
- Alarm Type: Siren
from RS Components, Ltd.
Hager 53623 Window & Door Alarm [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 230
from RS Components, Ltd.
Yale1 AC-3PETPIR [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Yale1 AC-3PIR [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Yale1 AC-DC [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Yale1 AC-MDC [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Yale1 AC-ODC [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Yale1 AC-PBX [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 12
from RS Components, Ltd.
Yale1 IA-320 [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Yale1 IA-330 [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Klaxon SLM-0001 Siren [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 230
- Alarm Type: Siren
from RS Components, Ltd.
RS PRO G3SB001 Security Alarm Sounder [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Eliwell CAPE+ Alarm [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 230
- Supply Voltage: AC
from RS Components, Ltd.
Lovato LPCZSBIP Buzzer [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Supply Voltage: DC or Battery
- Alarm Type: Buzzer
- Operating Voltage: 18 to 30
from RS Components, Ltd.
Lovato LPCZSEIP Buzzer [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 85 to 140
- Alarm Type: Buzzer
from RS Components, Ltd.
Lovato LPCZSM Buzzer [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 185 to 265
- Alarm Type: Buzzer
from RS Components, Ltd.
Emergency Assist Alarm Kit c/w PSU [See More]
- Agency Approvals: RoHS; RoHS Compliant
from RS Components, Ltd.
Deltaco SH-SI01 Alarm [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 3.7
from RS Components, Ltd.
Werma 154.000.55 Electronic Sounder [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 24
from RS Components, Ltd.
Legrand 041522 Buzzer [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Operating Voltage: 110
- Alarm Type: Buzzer
from RS Components, Ltd.
Klaxon SLC-0002 Siren [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Supply Voltage: AC; DC or Battery
- Alarm Type: Siren
- Operating Voltage: 230
from RS Components, Ltd.
Klaxon SLA-0002 Horn [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Supply Voltage: AC
- Alarm Type: Siren
- Operating Voltage: 230
from RS Components, Ltd.
Klaxon SLB-0002 Horn [See More]
- Agency Approvals: RoHS; RoHS Compliant
- Supply Voltage: AC; DC or Battery
- Alarm Type: Siren
- Operating Voltage: 230
from Mallory Sonalert Products, Inc.
Series: 22mm Independently Controlled LED or Alarm Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 50 mA LED Color: Green CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3900
- Sound Level: 85 to 95
- Tone: Continuous
from Challenge Electronics
The CE-HM630AQM chime_alarms Alarm from Challenge Electronics delivers 80 (94 Max.) SPL with a 10 nominal current (35 max.). Resonant Freq. is 2900 ( ± 2Hz). ’A ’-style Housing. Termination is Two 0.25 Quick Disconnect Blades. [See More]
- Agency Approvals: RoHS
- Sound Level: 70
- Alarm Type: Buzzer
- Frequency: 2650 to 3150
from OMEGA Engineering, Inc.
The M22 Series panel mount signaling alarms are made of heavy-duty industrial, UV stabilized polycarbonate and are intended for indoor or outdoor use. They are UL Type 4/4X/13 and IP65 approved for harsh environments and are watertight. The M22-30K models are specifically designed for the food... [See More]
- Agency Approvals: UL; RoHS; UL Type 4, 4X, 13, IP65, CE, CSA
- Sound Level: 65 to 105
- Specialty Applications: Outdoor/indoor Harsh Enviornments, Food Industry
- Frequency: 3300 to 3500
from Patlite (USA) Corporation
The BDV is an MP3 voice annunciator which produces excellent sound quality from pre-recorded MP3 files. The panel mounting style results in a clean, integrated look for most any application and programming it is easily accomplished with Patlite's SD card (sold separate) and Patlite's free... [See More]
- Agency Approvals: RoHS; CE
- Sound Level: 90
- Alarm Type: Speakers
- Supply Voltage: AC; DC or Battery
from Littelfuse, Inc.
Littelfuse Alarms and Accessories are designed for universal applications within harsh environments. Their features are designed for ease-of-installation and extended product lifecycle. Equipped with electromechanical buzzers that are designed for long-life. these products are designed to instantly... [See More]
- Agency Approvals: RoHS
from Mallory Sonalert Products, Inc.
Series: 22mm Independently Controlled LED or Alarm Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 50 mA LED Color: Red CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3900
- Sound Level: 85 to 95
- Tone: Continuous
from Patlite (USA) Corporation
The BKV is an MP3 voice annunciator which produces excellent sound quality from pre-recorded MP3 files. The panel mounting style results in a clean, integrated look for most any application and programming it is easily accomplished with Patlite's SD card (sold separate) and Patlite's free... [See More]
- Agency Approvals: RoHS; CE
- Sound Level: 95
- Alarm Type: Speakers
- Supply Voltage: AC; DC or Battery
from Mallory Sonalert Products, Inc.
Series: 22mm Independently Controlled LED or Alarm Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Slow Pulse Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 50 mA LED Color: Blue CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3900
- Sound Level: 85 to 95
- Supply Voltage: AC; DC or Battery
from Mallory Sonalert Products, Inc.
Series: 22mm Independently Controlled LED or Alarm Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 50 mA LED Color: Yellow CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3900
- Sound Level: 85 to 95
- Tone: Continuous
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Red CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Chime Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Red CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g Operating... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Blue CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: White CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Green CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Yellow CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Blue CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: White CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Green CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with LED Lights Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Continuous Freq (Hz): 3900.0 Volt Rating: 20 to 28 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: Yellow CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with Terminal Block Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Chime Freq (Hz): 3900.0 Volt Rating: 6 to 16 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g Operating... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with Terminal Block Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Multi-Tone Freq (Hz): 3900.0 Volt Rating: 6 to 16 DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 22mm Industrial Alarms with Terminal Block Mounting Method: 22 mm- Panel Mount Circuitry: Yes Sound Type: Chime Freq (Hz): 3900.0 Volt Rating: 16 to 28 AC/DC Typical Loudness (dBa): 85 to 95 @ 2 ft Max Current (mA): 40 mA LED Color: CUL Approved: Yes Size: 22 x 43.5 mm Weight: 28 g Operating... [See More]
- Agency Approvals: RoHS; CUL Approved
- Sound Level: 85 to 95
- Specialty Applications: Industrial
- Frequency: 3900
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Electronic Volume Control Mounting Method: Panel- Block Circuitry: Yes Sound Tone 1: Soft & Cont Sound Tone 2: Med & Cont Sound Tone 3: Loud & Cont Sound Tone 4: N/A Freq (Hz): 2000.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 65 to 95 @ 2 ft Max Current... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 2000
- Sound Level: 65 to 95
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Electronic Volume Control Mounting Method: Panel - Flat Blade Circuitry: Yes Sound Tone 1: Soft & Cont Sound Tone 2: Med & Cont Sound Tone 3: Loud & Cont Sound Tone 4: N/A Freq (Hz): 2000.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 65 to 95 @ 2 ft Max... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 2000
- Sound Level: 65 to 95
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Electronic Volume Control Mounting Method: Panel- Screw Terminals Circuitry: Yes Sound Tone 1: Soft & Cont Sound Tone 2: Med & Cont Sound Tone 3: Loud & Cont Sound Tone 4: N/A Freq (Hz): 2000.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 65 to 95 @ 2 ft Max... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 2000
- Sound Level: 65 to 95
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Electronic Volume Control Mounting Method: Panel- Block Circuitry: Yes Sound Tone 1: Soft & Cont Sound Tone 2: Med & Cont Sound Tone 3: Loud & Cont Sound Tone 4: N/A Freq (Hz): 3000.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 65 to 95 @ 2 ft Max Current... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3000
- Sound Level: 65 to 95
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Electronic Volume Control Mounting Method: Panel - Flat Blade Circuitry: Yes Sound Tone 1: Soft & Cont Sound Tone 2: Med & Cont Sound Tone 3: Loud & Cont Sound Tone 4: N/A Freq (Hz): 3000.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 65 to 95 @ 2 ft Max... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3000
- Sound Level: 65 to 95
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Electronic Volume Control Mounting Method: Panel- Screw Terminals Circuitry: Yes Sound Tone 1: Soft & Cont Sound Tone 2: Med & Cont Sound Tone 3: Loud & Cont Sound Tone 4: N/A Freq (Hz): 3000.0 Volt Rating: 9 to 16 DC Typical Loudness (dBa): 65 to 95 @ 2 ft Max... [See More]
- Agency Approvals: RoHS; CUL Approved
- Frequency: 3000
- Sound Level: 65 to 95
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Flat Blade Terminals Mounting Method: Panel - Flat Blade Circuitry: Yes Tech Type: Piezo Sound Type: Dual Mode- C/SP Freq (Hz): 2900.0 Volt Rating: 4 to 28 DC Typical Loudness (dBa): 90 to 90 @ 2 ft Max Current (mA): 10 mA LED Color: CUL Approved: No Size: 30 x 32 mm Weight:... [See More]
- Agency Approvals: RoHS
- Frequency: 2900
- Sound Level: 90
- Supply Voltage: DC or Battery
from Mallory Sonalert Products, Inc.
Series: 30mm Alarms with Flat Blade Terminals Mounting Method: Panel - Flat Blade Circuitry: Yes Tech Type: Piezo Sound Type: Chime Freq (Hz): 1000.0 Volt Rating: 30 to 110 AC/DC Typical Loudness (dBa): 55 to 75 @ 2 ft Max Current (mA): 30 mA LED Color: CUL Approved: No Size: 1.69 x 2.43 in Weight:... [See More]
- Agency Approvals: RoHS
- Frequency: 1000
- Sound Level: 55 to 75
- Supply Voltage: AC; DC or Battery