Best overall for utilities
i.safe MOBILE IS940.1
i.safe MOBILE · Dedicated Ex tablet
- Certified for
- Zone 1/21
- Marking
II 2G Ex ib IIC T4 Gb- Certification
- ATEX + IECEx, Class I Division 1
- Operating system
- Android 14
- Security updates
- Until Q4 2032
- Weight
- 1059 g
Much utility field work is done alone: a technician at an unmanned pumping station, a wet well or a gas governor at the end of a long drive. For that work the i.safe MOBILE IS940.1 is the tablet we would issue first. It has a freely programmable red key that i.safe suggests for SOS or lone-worker use, so raising an alarm takes one press with a gloved hand once a lone-worker app is assigned to it. i.safe does not supply that app, and the lone-worker function in our data is delivered through a third-party application. The 10.1-inch display is usable with gloves, the tablet is IP68 and MIL-STD-810H, and a 50 MP camera, NFC and 5G cover photos of assets, tag reads and links back to the control room.
The approvals travel well across a utility’s estate. It is intrinsically safe to Ex ib IIC T4 for Zone 1/21 with dust group IIIC, under ATEX and IECEx, with Class I Division 1 (Groups A to D) and Class II Division 1 (Groups E to G) listings for North America and national approvals including Inmetro, Japan-Ex, PESO and South Africa. Its standout feature is charging: it may be charged in the hazardous area, and its IECEx certificate also covers the IS-DS940.1 docking station that i.safe lists for charging there, so a tablet can stay on a dock at a depot or a pumping station. i.safe states security updates until Q4 2032.
The charging has conditions: the certificate limits it to 0 °C to +45 °C, so winter charging needs a warm room, and the USB-C cover may only be opened outside hazardous areas. The cold floor is −20 °C, as it is for every current Zone 1 tablet in our data. There is no UKEX certificate in our data, so a Great Britain site relies on ATEX. It is T4, which suits most gases but not substances that ignite below 135 °C, it is not certified for Zone 0, it weighs 1,059 g, and its user-replaceable battery may only be changed outside the hazardous area. Our data holds no battery-life figure for it, so ask i.safe for runtime figures before you size a fleet.




