Weather Proof Telephone

Weatherproof Telephones — Singapore

VoIP. Analogue. IP66/IP67-Rated. Built for the Field, Not the Office.

A standard telephone doesn't survive a tunnel, a petrochemical plant, or a tropical monsoon. The handset corrodes. The housing warps. The keypad fails. When communication breaks down in a critical environment — an MRT shaft, an offshore rig, a highway control room — the consequences aren't just inconvenient. They're a safety problem. HEPDA's weatherproof telephones are built for exactly these environments.

HWT-1V-LHB — VoIP SIP HWT-1A-LHB — Analogue PSTN IP66 / IP67 MTBF 100,000 hrs ITU-T K.21
IP66/67
Dual IP rating
100K hrs
MTBF both models
ITU-T K.21
Lightning protection

Choose based on your network infrastructure

Explore HEPDA's Full Range of Weatherproof Telephones

Both models share the same rugged SMC housing, IP66/IP67 protection, lightning suppression to ITU-T K.21, and a 100,000-hour MTBF. The difference is purely the network side.

HWT-1V-LHB VoIP Weatherproof Telephone

HWT-1V-LHB

Weatherproof VoIP Telephone

SIP 2.0 (RFC 3261) compliant. PoE (IEEE 802.3af) or AC 110–240V powered. Compatible with Asterisk, Cisco, 3CX, Avaya, Grandstream, Broadsoft, Elastix, Metaswitch. Full duplex, G.722 wideband audio.

NetworkIP / SIP 2.0
PowerPoE (802.3af) or AC
MTBF100,000 hours
HWT-1A-LHB Analogue Weatherproof Telephone

HWT-1A-LHB

Weatherproof Analogue Telephone

PSTN / FXS / analogue PBX lines. Line-powered — no external supply required. Call transmission rated for runs up to 5km. –30°C to +70°C. Ideal for highway emergency call points, tunnel emergency phones, and remote sites.

NetworkPSTN / FXS / Analogue PBX
PowerLine-powered
MTBF100,000 hours
Choose based on your network: If your site runs on an IP network with SIP-compatible call management — choose the HWT-1V-LHB VoIP model. If your site relies on existing PSTN lines, FXS ports, or an analogue PBX — choose the HWT-1A-LHB Analogue model, which runs line-powered with no separate supply required.

Ready to specify your weatherproof telephone?

Our Singapore team will confirm the right model, accessories, and network integration for your site — at no charge.