MOTOTRBO R7Ex UHF ATEX (Non-Display / NKP) – MDH57QCC9WA3AN
An ATEX & IECEx certified professional digital radio for hazardous zones, with AI noise cancellation, top-tier IP66/IP68 durability and outstanding loudness of up to 108 phons.
108 phons • Powerful speaker DMR Tier II/III + Analogue Bluetooth 5.2 • Wi-Fi 2.4/5GHz (WPA3) GNSS: GPS/GLONASS/Galileo/BeiDou
ATEX / IECEx • Zone 1/2 • Zone 21/22
ATEX / IECEx • Zone 1/2 • Zone 21/22
Why choose the R7Ex
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Full ATEX/IECEx for hazardous zones Designed for environments with gases/vapours, dust and industrial hazards.
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AI noise cancellation (dual microphone) Clear speech on construction sites, mines, oil/chemical facilities.
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Loudness up to 108 phons A powerful speaker for noisy environments & field shifts.
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IP66/IP68 & MIL-STD-810H Resistant to dust/water, impacts and demanding conditions (-30°C to +60°C).
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Connectivity & Location Bluetooth 5.2, Wi-Fi 2.4/5GHz, GNSS (GPS/GLONASS/Galileo/BeiDou).
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IMPRES ATEX Battery 2150mAh Up to 23.5 hours of battery life (at 1W use) and optimal charge management.
Ideal for
Oil & Gas, chemicals/refineries, mining, shipping, heavy industry, facilities with dust/vapours.
NKP (Non-Display) Model
No keypad/display – ideal for simple, quick use during demanding shifts and on construction sites.
Product Photos
R7Ex NKP – front view
Detail – top side / controls
R7Ex NKP – different angle / design details
Safety First: In explosive atmospheres, always choose certified equipment (ATEX/IECEx) and certified accessories (battery/charger).
Risks of Not Using Certified ATEX Equipment
Using radios without ATEX certification in areas with explosive gases, dust or fumes can lead to accidents, operational shutdowns and serious legal consequences.
Explosion / Ignition Risk
Non-ATEX devices can cause sparks or overheating in zones such as Zone 1 / Zone 21.
Electrostatic Discharge
The build-up of static electricity can lead to a discharge capable of igniting flammable materials/gases.
Legal & Insurance Consequences
Non-compliance with ATEX 2014/34/EU can lead to fines, voided insurance coverage and criminal liability.
Risk to Personnel
Choosing the wrong equipment can put lives and business continuity at direct risk.
The Solution: Choose certified equipment such as the Motorola R7Ex with ATEX/IECEx for Zone 1/2 (gases) and Zone 21/22 (dust), so that the device does not become a source of ignition in hazardous areas.
ATEX & IECEx (HAZLOC) Certifications – Zones, Groups & Temperatures
Quick Zone Reference
Gases: Zone 0 (continuous), Zone 1 (likely), Zone 2 (rare). EPL Gb → Zone 1/2.
Dust: Zone 20 (continuous), Zone 21 (likely), Zone 22 (rare). EPL Db → Zone 21/22.
Mining: M2 / Mb → safe operation where an explosion may occur.
Dust: Zone 20 (continuous), Zone 21 (likely), Zone 22 (rare). EPL Db → Zone 21/22.
Mining: M2 / Mb → safe operation where an explosion may occur.
| Environment | Standard | Marking | Zone / Category | EPL | Comments |
|---|---|---|---|---|---|
| Gases / Vapours | ATEX | II 2G Ex ib IIA T4 Gb | Zone 1 (and Zone 2) | Gb | Intrinsically safe protection ib. Gas group IIA, T4 (≤135°C). |
| Gases / Vapours | IECEx | Ex ib IIA T4 Gb | Zone 1 (and Zone 2) | Gb | Equivalent IECEx marking. |
| Gases / Vapours (high risk) | ATEX | II 2G Ex ib IIC T4 Gb | Zone 1 (and Zone 2) | Gb | Covers IIA / IIB / IIC (e.g. hydrogen, acetylene). |
| Gases / Vapours (high risk) | IECEx | Ex ib IIC T4 Gb | Zone 1 (and Zone 2) | Gb | Equivalent IECEx marking. |
| Dust | ATEX | II 2D Ex ib IIIC T130°C Db | Zone 21 (and Zone 22) | Db | Dust group IIIC (conductive dust). Maximum surface temperature 130°C. |
| Dust | IECEx | Ex ib IIIC T130°C Db | Zone 21 (and Zone 22) | Db | Equivalent IECEx marking. |
| Mining | ATEX | I M2 Ex ib I Mb | Category M2 | Mb | Group I (underground mines). Intrinsic safety for mining. |
| Mining | IECEx | Ex ib I Mb | Category M2 | Mb | Equivalent IECEx marking. |
| Ambient Temperature | — | -30°C to +60°C | — | — | Suitable for tough industrial use. |
| Protection Rating (IP) | — | IP66 / IP68 | — | — | Immersion at 2m for 2 hours. |
Note: ATEX IP (IEC 60079) includes stricter tests (thermal stress & impact before the IP test) compared with standard IEC 60529.
Technical Specifications (Table)
| Feature | Description / Explanation |
|---|---|
| Model | MDH57QCC9WA3AN (NKP – no keypad/display, ATEX) |
| Frequency | UHF 400–470 MHz (also referred to as 350–470 MHz depending on version/configuration) |
| Transmit power | 2W/1W (GAS GROUP IIC) • 4W/1W (GAS GROUP IIA) |
| Technology | Digital DMR Tier II/III + Analogue |
| Noise cancellation | AI – dual microphone with artificial intelligence |
| Speaker volume | Up to 108 phons – high loudness in noisy environments |
| Battery | IMPRES ATEX 2150 mAh (certified) |
| Battery life | Up to 23.5 hours (at 1W use) |
| Charger | Includes a certified ATEX desktop charger (e.g. PMPN4289) |
| GNSS | GPS, GLONASS, Galileo, BeiDou |
| Wireless functions | Bluetooth 5.2 • Wi-Fi 2.4/5GHz • WPA3 |
| Durability | IP66/IP68 • MIL-STD-810H • -30°C to +60°C |
| Safety functions | SOS button • Lone Worker • Man Down (programmable) |
Package Contents
- Motorola R7Ex UHF digital radio (NKP) – MDH57QCC9WA3AN
- IMPRES ATEX Battery 2150 mAh
- UHF Antenna
- Belt clip
- ATEX Desktop Charger
Maritime Certifications
| Regulation / Standard | Certification | Comments |
|---|---|---|
| Maritime Regulation Certificates | n/a | No specific maritime device approval applies. |
| Marine Equipment Directive (MED) | 2014/90/EU – MED / 5.20 | Compliance with equipment requirements for vessels within the EU. |
| Merchant Shipping (Marine Equipment) Regulations | 2016 | Applies to vessels registered in the United Kingdom. |
| UK Approval Code | UK / 5.20 | Equivalent requirement/marking for activity under the British flag. |
Applies where required based on flag state, certification cost and installation type.
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