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IS440.1 Atex Zone 1 5G Radio Mission Critical Push To Talk


The 5G radio ensures secure and failure-free PoC communication via public or campus networks (4G or 5G) or Wi-Fi® in Ex Zone 1/21. A gateway makes the IS440 interoperable with previous radio technologies and enables a seamless integration into existing systems. The 5G radio offers a user-orientated look & feel, a replaceable battery, large buttons for PTT, SOS, talkgroup selection, a powerful front speaker, an ISM interface and a functional fixing clip.


  • Multifunctional, lateral ISM interface for a quick and safe connection of additional devices
  • Dual-SIM (Nano-SIM + eSIM)
  • Accelerometer, Gyroscope, Light, Magnetic, Proximity, Pressure sensors
  • USB-C, Desktop Charger, Multi Charger


Operating systemISM-OS
ProcessorQualcomm® QCM6490 Octa Core
Memory4 GB RAM
64 GB internal memory
Camera8 MP AF front
DimensionsSize: 136,62 x 71,5 x 32 mm
Weight: 322 g
Display2,4" (6,096 cm) Corning® Gorilla® Glass V3
Battery2400 mAh
ConnectivityWi-Fi® 6: IEEE 802.11 a/b/g/n/ac/e/k/r/ax/v with hotspot
Bluetooth® 5.2
GPS, A-GPS, Glonass, Beidou, Galileo, NavIC, QZSS, SBAS
Near Field Communication
Near Field Communication
Types of protectionIP68 dust-/waterproof
Usable from -20 °C to +55 °C
Frequencies                                   4G LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12 MFBI/B13/B14/B17/B20/B25/B26/B28/B29/B30/B66/B68/B71
4G LTE-TDD: B38/B39/B40/B41/B42/B43/B48
5G NR: n1/n2/n3/n5/n7/n8/n12/n14/n20/n25/n28/n30/n38/n40/n41/n48/n66/n71/n77/n78/n79

iSafe IS440.1 Atex Zone 1, 5G Radio Mission Critical Push To Talk

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