Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
GUARDIAN TELECOM INC. WTT-40 Vandal Resistant Telephone, Surface Mount, Keypad - Rugged Phones for Hazardous Areas
GUARDIAN TELECOM INC.Rugged Phones for Hazardous Areas

GUARDIAN TELECOM INC. WTT-40 Vandal Resistant Telephone, Surface Mount, Keypad

The GUARDIAN TELECOM INC. WTT-40 is a surface-mount, armored rugged phone for hazardous areas, featuring a metal keypad and electret noise-reducing microphone. This yellow, corrosion-resistant commercial-grade phone…

SKU 3G-OTH-422171

Also listed as: WTT40 · WTT 40

Brand
GUARDIAN TELECOM INC.
Item
WTT-40 Vandal Resistant Telephone, Surface Mount, Keypad
Part Number
WTT-40
Category
Rugged Phones for Hazardous Areas
Available to Order
Also known as:WTT-40GUARDIAN TELECOM INC.
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

GUARDIAN TELECOM INC.
Manufacturer Part Number
WTT-40
Type
Rugged Phones for Haz Areas, Keypad
Vandal Resistant Telephone
Surface Mount

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

GUARDIAN TELECOM INC. Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GUARDIAN TELECOM INC. WTT-40 is a surface-mount, armored rugged phone for hazardous areas, featuring a metal keypad and electret noise-reducing microphone. This yellow, corrosion-resistant commercial-grade phone is designed for outdoor wall mounting and PSTN connectivity.

Frequently Asked Questions

What is the GUARDIAN TELECOM INC. WTT-40 used for?

The WTT-40 is a surface-mount, armored rugged phone designed for hazardous areas. It provides reliable voice communication in outdoor, corrosive, or high-risk industrial environments such as chemical plants, refineries, and marine facilities, where standard phones would fail.

What are the specifications of the GUARDIAN TELECOM INC. WTT-40?

The WTT-40 is a yellow, corrosion-resistant, armored phone with a metal keypad and electret noise-reducing microphone. It is commercial-grade, outdoor-rated, wall-mountable, and connects via PSTN. The manufacturer part number is WTT-40.

Where to buy the GUARDIAN TELECOM INC. WTT-40 worldwide?

3G Electric supplies the GUARDIAN TELECOM INC. WTT-40 worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the GUARDIAN TELECOM INC. WTT-40?

The WTT-40 is designed for surface wall mounting. Mount the phone securely to a flat surface using appropriate hardware for the environment. Connect the PSTN line per local wiring standards. For hazardous area installations, follow applicable safety codes and consult a qualified electrician.

Used in

Common applications for GUARDIAN TELECOM INC.
Oil and gas processing — Guardian Telecom WTT-40 rugged telephone for hazardous areas with metal keypad and noise-reducing microphone.
Chemical plants — Guardian Telecom WRR-11-V VoIP ringdown telephone with corrosion-resistant steel housing for outdoor hazardous areas.
Wastewater treatment — Guardian Telecom ACR-11 aluminum casting ringdown telephone with spring-loaded door and keylock for outdoor use.
Mining — Guardian Telecom WRT-30 weather-resistant PSTN telephone with yellow plastic housing and metal keypad for hazardous areas.
Heavy manufacturing — Guardian Telecom DTT-60 indoor hazardous-area telephone with speakerphone and removable handset retainer latch.
Correctional facilities — Guardian Telecom CIT-40 armored steel telephone with metal keypad and noise-reducing microphone for outdoor hazardous areas.
Not sure this is the right part? Photo-identify it→

GUARDIAN TELECOM INC. Products

3G Electric supplies GUARDIAN TELECOM INC. rugged phones for hazardous areas. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from GUARDIAN TELECOM INC.

View all GUARDIAN TELECOM INC. parts →
Surface-mount watertight ringdown telephone with corrosion-resistant yellow plastic housing. Features electret noise-reducing microphone, metal keypad, and curly cord. Designed for outdoor commercial use in hazardous areas, providing reliable voice communication via PSTN connectivity
GUARDIAN TELECOM INC.
Surface-mount watertight ringdown telephone with corrosion-resistant yellow plastic housing. Features electret noise-reducing microphone, metal keypad, and curly cord. Designed for outdoor commercial use in hazardous areas, providing reliable voice communication via PSTN connectivity
Surface-mount, wall-mounted indoor telephone with gray corrosion-resistant steel housing. Features Teleseal keypad, electret noise-reducing microphone, and curly cord. Rated for commercial use in hazardous areas
GUARDIAN TELECOM INC.
Surface-mount, wall-mounted indoor telephone with gray corrosion-resistant steel housing. Features Teleseal keypad, electret noise-reducing microphone, and curly cord. Rated for commercial use in hazardous areas
The SCT-10-V-H is a rugged VoIP telephone with a steel body and corrosion-resistant finish, designed for surface-mount indoor installation in hazardous areas. It features a keypad interface, adjustable earpiece volume, and microphone sensitivity, with 10/100 mbps network connectivity. Suitable for industrial environments requiring reliable voice communication
GUARDIAN TELECOM INC.
The SCT-10-V-H is a rugged VoIP telephone with a steel body and corrosion-resistant finish, designed for surface-mount indoor installation in hazardous areas. It features a keypad interface, adjustable earpiece volume, and microphone sensitivity, with 10/100 mbps network connectivity. Suitable for industrial environments requiring reliable voice communication

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first