EXW Singapore — collect or forward from our Singapore office.

3G Electric
GUARDIAN TELECOM INC. WTT-40-H Hazardous Area Steel Water Tight Telephone - Rugged Phones for Hazardous Areas
GUARDIAN TELECOM INC.Rugged Phones for Hazardous Areas

GUARDIAN TELECOM INC. WTT-40-H Hazardous Area Steel Water Tight Telephone

The GUARDIAN TELECOM INC. WTT-40-H is a rugged, armored telephone designed for hazardous areas. This surface-mount, outdoor-rated unit features a corrosion-resistant plastic housing, a metal keypad, and an electret…

SKU 3G-OTH-422169

Also listed as: WTT40H · WTT 40 H

Brand
GUARDIAN TELECOM INC.
Item
WTT-40-H Hazardous Area Steel Water Tight Telephone
Part Number
WTT-40-H
Category
Rugged Phones for Hazardous Areas
Available to Order
Also known as:WTT-40-HGUARDIAN 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

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

GUARDIAN TELECOM INC.
Manufacturer Part Number
WTT-40-H
Type
Keypad, WTT-40-H
Hazardous Area Steel Water Tight 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-H is a rugged, armored telephone designed for hazardous areas. This surface-mount, outdoor-rated unit features a corrosion-resistant plastic housing, a metal keypad, and an electret noise-reducing microphone. It operates on a PSTN network and is finished in yellow for high visibility.

Frequently Asked Questions

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

The WTT-40-H is a rugged, armored telephone for hazardous areas where standard phones would fail. It provides reliable voice communication in outdoor, corrosive environments such as oil refineries, chemical plants, and industrial facilities. Its corrosion-resistant plastic housing and metal keypad ensure durability in demanding conditions.

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

The WTT-40-H is a surface-mount, outdoor-rated telephone with a yellow corrosion-resistant plastic housing, armored metal keypad, and electret noise-reducing microphone. It operates on a PSTN network and is designed for wall mounting. The unit is commercial grade and suitable for hazardous areas.

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

3G Electric supplies the GUARDIAN TELECOM INC. WTT-40-H worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this rugged hazardous-area telephone.

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

The WTT-40-H is designed for surface wall mounting. Mount the unit securely to a flat surface using appropriate hardware for the environment. Connect the PSTN line per local wiring codes. Ensure the installation area is rated for hazardous locations and that all seals are intact to maintain corrosion resistance.

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