5G Radio Zone 1/21

IS440.1

The 5G radio ensures secure and seamless PoC communication via public or campus networks (4G or 5G) or Wi-Fi® in Ex Zone 1/21. A gateway makes the IS440.1 interoperable with previous radio technologies, allowing it to be seamlessly integrated into existing systems. The 5G radio offers a user-friendly appearance, a replaceable battery, large controls for PTT, SOS, channel selection, a powerful front-facing speaker, ISM interface and a convenient mounting clip.
You can download selected apps compatible with the device directly from the pre-installed App World and update them regularly. App World contains selected push-to-talk and MDM solutions related to the product.

Advantages

Channel selector switch, e.g. for PTT applications
Programmable red key (e.g. for lone worker protection/SOS)
Programmable side key (e.g. for PoC/PTT)
Additional programmable buttons, M1 and M2, assignable via Button App
8-pin ISM interface for optional audio accessories
Powerful battery with 4800 mAh for extreme operating time of the device as an optional accessory
Amplified speaker for noisy working environments
Integrated belt clip for secure carrying

Technical features

Operating 
system:
ISM-OS
Processor:
Qualcomm® QCM6490 Octa Core
Memory:
4 GB RAM
64 GB internal memory
Frequencies:
4G LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12 MFBI/B13/B14/B17/B20/B25/B26/B28/B29/B30/B66/B71/B68
4G LTE-TDD: B38/B39/B40/B41/B42/B43/B48
Dimensions:
Size: 136.6 x 70 x 32 mm
Weight: 307 g
Display:
2.4" (6.096 cm) Corning® Gorilla® Glass V3
Battery:
2400 mAh
Replaceable
Camera:
8 MP AF
Connectivity:
Wi-Fi® 6: IEEE 802.11 a/b/g/n/ac/e/k/r// with hotspot
Bluetooth® 5.2
GPS, A-GPS, Glonass, Beidou, Galileo, NavIC, QZSS, SBAS
Near Field Communication
Protection types:
IP68 dust/waterproof
MIL-STD 810H
Suitable for use from -20°C to +55°C

More features

Amplified speaker
Dual SIM (Nano-SIM + eSIM)
Accelerometer, Gyroscope, Magnetic sensor, Pressure
USB Type-C, Desktop charger, Multi-charger
Function key red (function key assignable for different 3rd party application; e.g. loneworker protection)

Certifications

ATEX (Europe) - 
Approved:
II 2G Ex ib IIC T4 Gb
II 2D Ex ib IIIC T135°C Db
IECEx (International) - 
Approved
Ex ib IIC T4 Gb
Ex ib IIIC T135°C Db
NEC500 (North 
America)
Class I Div. 1 Groups A, B, C, D, T4
Class II Div. 1 Groups E, F, G, T135 °C
Class III
IA (South Africa) - 
Approved
Ex ib IIC T4 Gb
Ex ib IIIC T135°C Db
INMETRO (Brazil) - 
Approved
Ex ib IIC T4 Gb
Ex ib IIIC T135°C Db

Partners

A variety of videos about Alson's solutions.

We’re here to support your business.

Contact our team to find the perfect solution for your needs!

Developed with by Digital Marketing Agency Alson © 2025