# OpenStage M3 Family — Industrial and ATEX DECT Handset

URL: https://www.promark.tr/en/products/m3
Category: DECT Wireless System
Family: [OpenScape DECT Handsets — SL7, S6, R6, M3](https://www.promark.tr/en/products/openscape-dect-phones)

IP65-rated, silver/black-housed DECT handset for harsh industrial environments — 4 variants: Standard, Plus (advanced alarm), Ex (gas/dust hazardous zones), Ex Plus (Ex + advanced alarm). Lone-worker safety, OScAR alarm-server integration, Bluetooth + Mini USB.

## Key features

- 4 variants: M3, M3 Plus (alarm), M3 Ex (ATEX), M3 Ex Plus (ATEX + alarm).
- IP65 protection + shock/break-proof + silicon-free housing surface.
- Illuminated 1.8" TFT graphical display (128 × 160 pixels, 65K colors), 26 display languages.
- Illuminated keypad + 5-way navigation (center click).
- Excellent voice quality — optimized for industrial noise.
- Emergency call key + monitoring LED on the head + 3 pre-configured emergency numbers.
- Plus / Ex Plus: deliberate alarms (Man Down, No Movement, time, escape, technical, pull cord) + alarm-specific emergency numbers + configurable pre-alerts.
- Ex / Ex Plus: ATEX 2014/34/EU — gas zone 1 (II 2G Ex ib IIC T4 Gb) + dust zone 21 (II 2D Ex tb IIIC T120°C Db).
- Ex variants: sealed 2.5 mm headset jack + Bluetooth only.
- Integration with OpenScape Alarm Response (OScAR) — alerts to server, messaging, localization.
- Compatible with Cordless IP V2 (BS5 base) + Cordless E V7 (TDM) systems.
- DECT-encrypted voice + secure system logon + 4-digit PIN.
- Multi-cell: roaming + seamless handover.

## Specifications

- **Variants:** M3 (standard alarm), M3 Plus (extended alarm), M3 Ex (ATEX), M3 Ex Plus (ATEX + extended alarm)
- **System:** Cordless IP V2 (BS5) + Cordless E V7 (TDM) — OpenScape Business/4000/Voice
- **Protection class:** IP65 (dust/water) + shock/break resistant + silicone-free
- **Display:** Backlit 1.8" TFT, 128 × 160 pixels, 65K colours
- **Display languages:** 26
- **Emergency call:** All variants; Plus / Ex Plus: Man Down + No Movement + escape + time + pull cord + technical
- **Gas zone 1:** M3 Ex + M3 Ex Plus: II 2G Ex ib IIC T4 Gb
- **Dust zone 21:** M3 Ex + M3 Ex Plus: II 2D Ex tb IIIC T120°C Db
- **Bluetooth:** All variants
- **Wired headset:** 2.5 mm (gasket-protected on Ex variants)
- **PC interface:** Mini USB + Bluetooth
- **Encryption:** DECT standard + 4-digit PIN
- **Multi-cell:** Roaming + seamless handover
- **Phone book:** ≈ 500 entries
- **Ringtones:** 5 standard + 15 polyphonic
- **Vibration alarm:** Yes
- **Battery:** Lithium-ion 1000 mAh
- **Weight:** ≈ 166 g
- **Dimensions (H × W × D):** 154 × 56 × 26 mm
- **Charging unit:** 89.5 × 86 × 36 mm, ~118 g
- **Color:** Silver / Black
- **Operating temp:** −10 °C to +55 °C
- **OScAR (alarm server):** Integrated for Plus / Ex Plus — DGUV BGR139-compliant lone-worker

## Use cases

- Petrochemical / refinery field worker — Ex Plus for gas zone 1 hazardous-area lone-worker + Man-Down alarm.
- Mining / underground tunnel — Ex + IP65 dust/water + DECT roaming over long tunnels.
- Pharmaceutical clean room — Standard M3 + disinfection-compatible + 5 polyphonic ringtones for silent duty.
- Hospital lone-worker / psychiatry ward — Plus with pull-cord alarm + No Movement + OScAR integration to security desk.
- Port / chemical warehouse — Ex Plus + ATEX approval + emergency call routed to site.
- Power plant (nuclear, hydro) — Plus for technical alarm + optional OScAR escalation.

## For a quote and BOM

https://www.promark.tr/en/contact · +90 312 544 0915 · destek@promark.tr