We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

GUARDIAN TELECOM INC. Hazardous Area Steel Water Tight Telephone: Surface Mount, Keypad - Rugged Phones for Hazardous Areas
GUARDIAN TELECOM INC.Rugged Phones for Hazardous Areas

GUARDIAN TELECOM INC. Hazardous Area Steel Water Tight Telephone: Surface Mount, Keypad

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
Hazardous Area Steel Water Tight Telephone: Surface Mount, Keypad
Category
Rugged Phones for Hazardous Areas
Available to Order
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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 refineries — Guardian Telecom explosion-proof phones (e.g., P4011) for communication in Zone 1 hazardous areas
Chemical processing plants — Guardian Telecom corrosion-resistant ringdown phones (e.g., ACR-11) for reliable point-to-point calls
Marine terminals — Guardian Telecom weather-resistant telephones (e.g., WTT-30-H) for outdoor dockside communication
Mining operations — Guardian Telecom steel ringdown phones (e.g., SCR-41-H) for underground or surface hazardous zones
Pharmaceutical manufacturing — Guardian Telecom intrinsically safe phones (e.g., P1021) for cleanroom environments with flammable solvents
Water treatment facilities — Guardian Telecom vandal-resistant phones (e.g., WTT-40) for outdoor areas requiring durability and corrosion resistance

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

Related products

More from GUARDIAN TELECOM INC.

View all GUARDIAN TELECOM INC. parts
GUARDIAN TELECOM INC. Vandal Resistant Telephone: Surface Mount, Keypad, WTT-40-V, Volume Control
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Vandal Resistant Telephone: Surface Mount, Keypad, WTT-40-V, Volume Control
GUARDIAN TELECOM INC. Compact Steel Telephone: Surface Mount, Rugged Phones for Haz Areas, Keypad (MPN SCT-10)
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Compact Steel Telephone: Surface Mount, Rugged Phones for Haz Areas, Keypad (MPN SCT-10)
GUARDIAN TELECOM INC. Water Tight Ringdown Telephone: Surface Mount, Rugged Phones for Haz Areas (MPN WTT-30)
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Water Tight Ringdown Telephone: Surface Mount, Rugged Phones for Haz Areas (MPN WTT-30)
GUARDIAN TELECOM INC. Correctional Telephone: Surface Mount, Rugged Phones for Haz Areas, Keypad (MPN CIT-40)
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Correctional Telephone: Surface Mount, Rugged Phones for Haz Areas, Keypad (MPN CIT-40)
GUARDIAN TELECOM INC. Water Tight Telephone: Surface Mount, Keypad, Speakerphone, DTT-60, 1 Lines
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Water Tight Telephone: Surface Mount, Keypad, Speakerphone, DTT-60, 1 Lines
GUARDIAN TELECOM INC. Hazardous Area Water Tight Telephone: Surface Mount, Keypad, WTT-30-H, Outdoor
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Hazardous Area Water Tight Telephone: Surface Mount, Keypad, WTT-30-H, Outdoor
GUARDIAN TELECOM INC. Weather Resistant Ringdown Telephone: Surface Mount, Ringdown, WRR-11-V, VoIP
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Weather Resistant Ringdown Telephone: Surface Mount, Ringdown, WRR-11-V, VoIP
GUARDIAN TELECOM INC. Hazardous Area Telephone: Surface Mount, Rugged Phones for Haz Areas, Keypad (MPN WRT-10-V-H)
GUARDIAN TELECOM INC.
GUARDIAN TELECOM INC. Hazardous Area Telephone: Surface Mount, Rugged Phones for Haz Areas, Keypad (MPN WRT-10-V-H)