Product SKU: WP18
Product Overview
The SECOR WP18 Large Combo Siren Strobe with Dual Piezo is a high-output external alarm warning device designed for compatible hardwired intrusion alarm systems. Its large housing creates a distinctive external warning presence, while the twin piezo siren delivers a strong 116dB output for sites that need more audible alarm impact than smaller siren/strobe units. The WP18 also includes a strobe, high quality UV-treated case, weatherproof construction, front and back tampers, and independent siren and strobe operation. This makes it suitable for homes, shops, offices, warehouses, workshops, commercial premises and alarm upgrade projects where a larger external siren/strobe is preferred for both visual deterrence and strong audible alarm indication.
Key Capabilities
Large External Warning Design
The WP18’s larger enclosure gives the alarm system a more distinctive external presence, making it suitable where a clearly visible siren/strobe is preferred.
Twin Piezo 116dB Output
The dual piezo design delivers 116dB at 1m, providing strong audible alarm output for suitable external intrusion alarm installations.
Integrated Strobe Warning
The built-in strobe provides visual alarm indication, helping occupants, neighbours or responders identify the alarm location during activation.
Independent Siren and Strobe Operation
Independent operation allows compatible alarm panels to control the siren and strobe separately where the wiring and programming support this setup.
Front and Back Tamper Protection
Front and rear tamper switches help detect attempts to open or remove the unit when the tamper circuit is connected and programmed correctly.
UV-Treated Weatherproof Case
The high quality UV-treated weatherproof case is designed for external mounting where the alarm device must withstand normal outdoor exposure.
Best For
- Home Alarm Systems: Suitable for residential alarm installations requiring a larger external siren/strobe with strong audible output.
- Small Business Security: A practical option for shops, offices, clinics, workshops and small warehouses using compatible hardwired alarm panels.
- Commercial Alarm Upgrades: Useful when replacing a smaller siren/strobe with a larger dual piezo external warning device.
- Visible Deterrent Installations: The large housing and strobe create a more noticeable external alarm presence.
- Higher Audible Output Needs: Best suited where a stronger siren output is preferred over smaller 110dB combo siren/strobe models.
Why Choose the WP18
Choose the SECOR WP18 when the alarm installation needs a larger external siren/strobe with stronger audible output and a more prominent warning presence. Its twin piezo 116dB output makes it a better fit than smaller siren/strobe units where higher sound level is preferred, while the strobe adds visual alarm indication for external identification. Compared with compact models such as WP06 or WP16, the WP18 offers a larger enclosure and dual piezo design for sites where alarm visibility and sound output are key priorities. This model, supplied by Security Wholesalers, is a strong choice for compatible hardwired alarm installations requiring a distinctive external warning device with tamper protection and independent siren/strobe operation.
Buyer Decision Tips
Buyer Tip: Confirm the alarm panel output capacity before installation. The WP18 twin piezo current is 300mA and the strobe current is 50mA, so the total load should be checked against the panel or auxiliary power supply rating.
Buyer Tip: Choose WP18 when a larger and louder external siren/strobe is preferred. If the site needs a slimmer or more compact housing, WP16 or WP06 may be more suitable depending on the installation requirements.
Key Features & Technical Specifications
| Product Type | Large external combo siren and strobe. |
| Model | WP18. |
| Brand | SECOR. |
| Siren Type | Twin piezo siren. |
| Siren Output | 116dB at 1m. |
| Twin Piezo Current | 300mA. |
| Strobe Current | 50mA. |
| Operating Voltage | 9–15VDC. |
| Strobe Function | Integrated strobe for visual alarm indication. |
| Operation | Independent siren and strobe operation. |
| Tamper Protection | Front and back tampers. |
| Housing | High quality UV-treated weatherproof case. |
| Design | Large size housing for a distinctive warning presence. |
| Dimensions | 280 x 160 x 62mm. |
| Typical Installation | External siren/strobe for compatible hardwired intrusion alarm systems. |
Ideal Use Cases
Front Exterior Wall
Install where the larger siren/strobe housing can provide clear external alarm indication from the front of the property.
Residential Alarm Upgrades
Use when upgrading a home alarm to a larger external siren/strobe with stronger audible output.
Retail and Office Premises
A practical external alarm warning device for shops, offices, clinics and other small business premises.
Workshops and Warehouses
Suitable for sites where a larger siren/strobe may be easier to notice externally during alarm activation.
Alarm Replacement Jobs
Useful when replacing older siren hardware with a more distinctive large combo siren/strobe unit.
Visible Deterrent Installations
Use where a more noticeable external alarm device is preferred as part of the site’s security presence.
Choosing the Right Model
- Choose this model if: You need a large SECOR combo siren/strobe with twin piezo 116dB output, strobe, tamper protection and weatherproof housing.
- Choose WP16 if: You need a flatter, slimmer siren/strobe housing with 110dB output and a lower-profile external appearance.
- Choose WP06 if: You need a smaller combo siren/strobe with built-in EOLR options and 110dB output.
- Check before installation: Confirm alarm panel output capacity, siren/strobe wiring, tamper wiring, mounting position, cable route and weather exposure.
FAQs
- What is the SECOR WP18 used for?
The SECOR WP18 is used as a large external combo siren and strobe for compatible hardwired intrusion alarm systems. It provides both a strong audible alarm output and visual strobe indication, making it suitable for homes, small businesses, workshops, warehouses and light commercial sites. - How loud is the WP18 siren?
The WP18 uses a twin piezo design rated at 116dB at 1m. Actual perceived loudness depends on mounting position, building layout, background noise and exterior conditions. It is louder than many smaller combo siren/strobe models, making it suitable where higher audible output is preferred. - Does the WP18 include a strobe?
Yes. The WP18 includes an integrated strobe for visual alarm indication. The siren and strobe support independent operation when the connected alarm panel, wiring and programming allow separate control of audible and visual alarm outputs. - Does the WP18 include tamper protection?
Yes. The WP18 includes front and back tamper protection, which helps the alarm system detect attempts to open or remove the device when the tamper circuit is connected and configured correctly. This is important for external siren/strobe installations. - Is the WP18 suitable outdoors?
Yes. The WP18 has a high quality UV-treated weatherproof case designed for external alarm use when installed correctly. The installer should still choose a suitable mounting location, protect cable entry, maintain tamper operation and follow the alarm panel wiring requirements. - What voltage does the WP18 require?
The WP18 operates from 9–15VDC and is commonly used with compatible 12V hardwired alarm systems. The twin piezo current is 300mA and the strobe current is 50mA, so the installer should confirm the panel or auxiliary power output can support the total load. - What is the difference between WP18, WP16 and WP06?
The WP18 is the larger SECOR combo siren/strobe with twin piezo 116dB output. WP16 is a flatter 110dB combo siren/strobe with a slimmer enclosure, while WP06 is a 110dB combo siren/strobe in a deeper compact housing. The best choice depends on size, sound output and wiring needs. - What should I check before buying the WP18?
Before buying the WP18, confirm the alarm panel output capacity, siren and strobe wiring, tamper wiring, mounting location and cable route. This model is available through Security Wholesalers for compatible hardwired alarm installations where a large external combo siren/strobe with dual piezo output is required.




















