Industrial Weatherproof Telephone
Line-powered weatherproof phone in cast aluminium for wet, noisy plant areas
SMART industrial telephones, PA systems, call boxes and bag counters, designed and built in Nagpur. 83 models, most with a datasheet to download.

Products
Industrial, PA, weatherproof, IP, clean-room, hotline and rail phones
30 models →
Master stations, consoles, amplifiers, horns and crane links
21 models →
SOS call boxes, hooters, flashers, voice alarms and lift alarm
14 models →
Bag counters for loading lines and 4–20 mA displays
13 models →
LED floodlights and an LED emergency light
5 models →
Our own R&D and PCB design. Field units are built on a single plug-and-play PCB, so troubleshooting is quick.
Encapsulated circuit boards, sealed one-piece keypads, noise-cancelling handsets and magnetic reed hook switches rated over 1,000,000 operations.
Ordinary telephone cable, not specialist cable. MCS-II loops run up to 2000 m on 0.5 mm twisted pair, and each PA telephone carries its own 30 W amplifier.
We plan, supply, commission and support on site, to your specification.
Industries
Each industry page lists the SMART models made for its conditions, and the problems they solve.
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Cement
Cement is the largest group on the SMART client list: more than 30 Indian cement groups, from UltraTech and Ambuja to Shree and Dalmia, plus plants in Egypt (2025 user list). SMART phones, PA systems and bag counters work on loading lines and plant floors where dust and noise defeat ordinary equipment.
Cement productsClients · 2025 user list
























Systems
Field favourites
Line-powered weatherproof phone in cast aluminium for wet, noisy plant areas
Solar-ready GSM phone for remote sites where cabling is impractical
Flush-mount clean room phone with auto-dial key for any EPABX extension
2-line LED bag counter with real-time clock, Ethernet ready
Quote
Add models to your quote list, tell us the plant and quantities, and we reply with a quotation. Replacing another brand? Send us its model number.