• i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
  • i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
  • i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
  • i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
  • i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
  • i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
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  • Instant nationwide push-to-talk communication
  • Unlimited range via LTE/3G
  • Talk one-to-one or to groups
  • SOS button for emergencies
  • GPS tracking & playback
  • PC dispatch control software

i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio

i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio

(Verified Customer Reviews)

The i.safe MOBILE IS440.1 is a rugged, intrinsically safe 5G radio engineered for dependable Push-to-Talk over Cellular (PoC) communication in hazardous environments. Certified for use in Zone 1/21 areas, it delivers seamless connectivity over public or private (campus) 4G/5G networks and Wi-Fi®, ensuring reliable performance even in demanding conditions.

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The radios work great, except when a cell tower was down after a storm. Otherwise flawless. Great product for mobile teams.
Jude I., Emergency Response 21 August 2025
Great product and excellent customer service! We use these for our landscape crew and plan to order more.
Jeff F., Landscape Owner 22 August 2024
  • Instant nationwide push-to-talk communication
  • Unlimited range via LTE/3G
  • Talk one-to-one or to groups
  • SOS button for emergencies
  • GPS tracking & playback
  • PC dispatch control software
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i.safe MOBILE IS440.1 Intrinsically Safe (C1/D1) 5G Radio
  • Channel Selector: Ideal for PTT applications
  • Programmable Red Key: Configurable for functions such as lone worker protection or SOS alerts
  • Programmable Side Key: Customizable for PoC/PTT operations
  • Additional Programmable Buttons (M1 & M2): Assignable via the Button App for tailored functionality
  • 8-Pin ISM Interface: Supports optional audio accessories for enhanced communication
  • Optional 4800 mAh Battery: Provides extended runtime for demanding environments
  • Amplified Loudspeaker: Designed for clear audio in high-noise workplaces
  • Integrated Belt Clip: Ensures secure and convenient carrying
  • 2-Year Warranty: Guaranteed reliability and support
PTT
Group Talk
1-1 Private
PC Dispatch
SOS

Approvals:

ATEX Approved (Europe)
II 2G Ex ib IIC T4 Gb
II 2D Ex ib IIIC T135°C Db

IECEx Approved (International)
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

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/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
Dimensions 5.38" x 2.81" x 1.26"  |  Weight: 0.71 lbs
Display 2.4" Corning Gorilla Glass V3
Battery 2400 mAh
Camera 8 MP AF Front
Connectivity Wi-Fi® 6: IEEE 802.11 a/b/g/n/ac/e/k/r/ax/v
Bluetooth 5.2
GPS, A-GPS, Glonass, Beidou, Galileo, NavIC, QZSS, SBAS
Near Field Communication
Protection IP68 Dust/Waterproof
MIL-STD 810H
Usable from -20°C to +55°C