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SAFETY TECHNOLOGY INTERNATIONAL STI-3300 Wireless Doorbell Extender - Doorbells for Security Systems
SAFETY TECHNOLOGY INTERNATIONALDoorbells for Security Systems

SAFETY TECHNOLOGY INTERNATIONAL STI-3300 Wireless Doorbell Extender

The SAFETY TECHNOLOGY INTERNATIONAL Wireless Doorbell Extender (STI-3300) is an indoor doorbell for security systems. It features a 120 V AC plug-in receiver with a 5-inch height, designed to extend the range of an…

SKU 3G-OTH-645564

Also listed as: STI3300 · STI 3300

Brand
SAFETY TECHNOLOGY INTERNATIONAL
Item
STI-3300 Wireless Doorbell Extender
Category
Doorbells for Security Systems
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SAFETY TECHNOLOGY INTERNATIONAL
Manufacturer Part Number
STI-3300
Environment
Indoor
Receiver Ht
5 in
Product Type
Doorbell
AC Plug-In Receiver Volt
120 V

Technical Documents

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SAFETY TECHNOLOGY INTERNATIONAL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SAFETY TECHNOLOGY INTERNATIONAL Wireless Doorbell Extender (STI-3300) is an indoor doorbell for security systems. It features a 120 V AC plug-in receiver with a 5-inch height, designed to extend the range of an existing doorbell signal within indoor environments.

Frequently Asked Questions

What is the SAFETY TECHNOLOGY INTERNATIONAL STI-3300 wireless doorbell extender used for?

The STI-3300 is an indoor doorbell extender for security systems. It plugs into a 120 V AC outlet and extends the range of an existing doorbell signal, ensuring you hear alerts in larger indoor spaces.

What are the specifications of the STI-3300 wireless doorbell extender?

The STI-3300 is an indoor doorbell with a 120 V AC plug-in receiver that stands 5 inches high. It is designed to extend the signal range of compatible doorbell systems within indoor environments.

Where to buy the SAFETY TECHNOLOGY INTERNATIONAL STI-3300 doorbell extender worldwide?

3G Electric supplies the STI-3300 doorbell extender worldwide. As a global industrial solutions provider, we handle logistics, customs clearance, and delivery to your location. Contact us to order.

How to install the STI-3300 wireless doorbell extender?

Installation is straightforward: plug the 120 V AC receiver into a standard indoor outlet within range of your existing doorbell transmitter. Ensure the transmitter and receiver are on the same frequency for proper signal extension.

Used in

Common applications for SAFETY TECHNOLOGY INTERNATIONAL
Commercial building security — STI-6400 exit door alarm for preventing unauthorized door use in office corridors
Industrial electrical panel protection — STI-HTR550T enclosure heater for maintaining temperature in control cabinets
Facility safety equipment — STI 9640 wire guard for protecting exit signs in warehouse aisles
Retail entry alerting — STI-3601 wireless motion sensor paired with STI-3610G chime for customer notification
School perimeter monitoring — STI-34151 transmitter for pole-mounted motion detection in outdoor areas
Hospital emergency lighting — STI-9740 wire guard for shielding light fixtures in corridors

SAFETY TECHNOLOGY INTERNATIONAL Products

3G Electric supplies SAFETY TECHNOLOGY INTERNATIONAL doorbells for security systems. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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