Tropical monsoon climate
Wikipedia records three seasons (winter, summer, monsoon) with 250 to 300 cm of rain a year, so handsets used outdoors need good ingress protection.
The city has three seasons, winter, summer and monsoon, with annual rainfall of 250 to 300 centimetres. A large share are chemical, dye and pesticide plants, so solvent and process areas need Zone 1 or Zone 2 equipment. This page explains what to look for in an Ex-proof smartphone for Vapi, Gujarat, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Vapi, Gujarat: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Vapi, Gujarat: Solvent storage and handling, Chemical reactors and process areas, Dye and pesticide manufacturing | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Vapi India. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Wikipedia records three seasons (winter, summer, monsoon) with 250 to 300 cm of rain a year, so handsets used outdoors need good ingress protection.
The estate is made up largely of small-scale units rather than one large operator, so purchasing is spread across many firms.
Vapi had 163,630 residents in 2011, with Gujarati and Hindi the most common languages and a literacy rate of about 89 percent.
The development corporation's estates provide roads, drainage, electricity and water supply, with larger estates including banks, schools and dispensaries.
Vapi will be a station on the planned Mumbai-Ahmedabad high-speed rail corridor, and a coast guard airstrip at Daman can take private charters with permission.
Mumbai is roughly 185 kilometres to the south and Surat about 120 kilometres to the north, and the Mumbai-Ahmedabad rail line serves Vapi station.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Vapi, Gujarat. A marking check in a Vapi chemical unit would compare the handset's label with the zone the plant has assigned, usually Zone 1 or Zone 2 near solvents. Gas group and temperature class also matter, since solvent vapours vary. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, still unapproved.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
Likely candidates are solvent storage and handling, chemical reactors and process areas, dye and pesticide manufacturing, effluent and tank areas. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Vapi gets 250 to 300 centimetres of rain a year, mostly in the monsoon season. Choose sealed, water-resistant devices with a suitable ingress rating, and keep spares and chargers in dry storage.
Vapi is on National Highway 48 and the Mumbai-Ahmedabad railway, about 185 kilometres from Mumbai. Most visitors fly into Mumbai or Surat and continue by road.
The plant owner decides, normally through its safety or maintenance manager, based on its own classification. The estate has many small units, so rules differ plant to plant. Ask each plant for its zone drawings and permit procedure before bringing any device on site.
More on Vapi India, and on other places in India.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.