GeniusCore

Industrial Explosion-Proof Telephone

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Orange explosion-proof telephone for voice communication where explosive gas or dust can be present. It is built for wide outdoor temperature swings, high humidity, sea water, dust, corrosive air and mechanical wear.

Typical sites include chemical plants, oil and gas, onshore and offshore drilling, refineries, mines, power stations and heavy industry.

Protection

  • Zone 1, Zone 2 and Zone 22.
  • Gas: Ex eb ib [ib Gb] mb IIC T6/T5 Gb.
  • Dust: Ex ib [ib Db] tb IIIC T80/T95 C Db.
  • T6 / T80 C class from -40 C to +40 C. T5 / T95 C class from -40 C to +55 C.
  • IP66 to IEC 60529.

Body

  • Door cover, wall mounting and three M20 cable entries.
  • Handset with a noise-cancelling microphone, 42 cm armored cord and hearing-aid compatibility.
  • Magnetic hook switch. Full keypad, mute, flash and last-number redial.
  • Hot line, hands-free use, LCD, Ex horn, Ex beacon and Ex junction box are quote options.

GJ-EX-AL, analog

  • Powered from the telephone line.
  • Line voltage 24 to 65 VDC, current 20 to 100 mA.
  • Ringer 48 to 90 VAC, 21 to 54 Hz. Volume 80 dB(A) at 1 m.
  • Pulse or DTMF dialing.

GJ-EX-SIP

  • PoE 802.3af or 12 V DC.
  • SIP 2.0 (RFC 3261), 10/100 WAN and LAN.
  • Codecs G.711, G.722, G.723 and G.729.
  • Ring volume 90 to 95 dB(A) at 1 m. Idle 1.5 W, working 1.8 W.

Operating temperature -40 C to 65 C. Storage -40 C to 75 C. MTBF is above 50,000 hours in normal use.

Datasheets: GJ-EX-AL, GJ-EX-SIP.

Specification Details
Product family GJ-EX
Hazardous area Zone 1, Zone 2, Zone 22
Gas marking Ex eb ib [ib Gb] mb IIC T6/T5 Gb
Dust marking Ex ib [ib Db] tb IIIC T80/T95 C Db
Ingress IP66, IEC 60529
Temperature class T6 / T80 C: -40 C to +40 C. T5 / T95 C: -40 C to +55 C
Handset Noise-cancelling microphone, 42 cm armored cord, hearing-aid compatible
Hook switch Magnetic reed
Keypad Full keypad, mute, flash, last-number redial
Mounting Door cover, wall, 3x M20
Operating temperature -40 C to 65 C
Storage temperature -40 C to 75 C
Service life MTBF above 50,000 hours
GJ-EX-AL power Drawn from the telephone line
GJ-EX-AL line voltage 24 to 65 VDC, 20 to 100 mA
GJ-EX-AL ringer 48 to 90 VAC, 21 to 54 Hz
GJ-EX-AL ring volume 80 dB(A) at 1 m
GJ-EX-AL dialing Pulse or DTMF
GJ-EX-SIP power PoE 802.3af or 12 V DC
GJ-EX-SIP protocol SIP 2.0 (RFC 3261)
GJ-EX-SIP network 10/100 WAN and LAN
GJ-EX-SIP codecs G.711, G.722, G.723, G.729
GJ-EX-SIP ring volume 90 to 95 dB(A) at 1 m
GJ-EX-SIP consumption Idle 1.5 W, working 1.8 W

Shipping Policy

Shipping Policy

Effective Date: September 22, 2026 — geniuscores.com

Corenox Embedded Systems LLC (geniuscores.com) ships internationally under the timelines below. These times match our Google Merchant Center shipping settings.

1. Processing / Handling Time

  • 2–4 business days handling after order cut-off
  • Orders processed Monday–Saturday
  • Custom / configured builds may require additional time (communicated at checkout or by email)

2. Transit Time

  • 6–12 business days in transit to destination
  • Carriers operate Monday–Saturday

3. Total Delivery Time

Total estimated delivery: 8–16 business days from order acceptance to delivery for supported destinations (handling + transit).

Remote locations, customs inspections, weather, or carrier delays can extend delivery beyond this estimate.

4. Shipping Costs

Shipping is calculated by package weight (pounds) at checkout. Product weights in our catalog are maintained in pounds for accurate rate calculation. Where offered, checkout rates use DHL DDP Delivery weight bands.

5. Duties & Taxes

Where offered, orders ship Delivered Duty Paid (DDP) so eligible duties/taxes are collected at checkout — no surprise fees on delivery for those orders.

6. Ship-from Location

Orders ship from our fulfillment warehouse in China (not from our U.S. business office):

Shenzhen Warehouse
Longgang QingMing Lu, Xinghe Sgang Yu 2907
Shenzhen, 518100, Guangdong, China

7. Business Address

Corenox Embedded Systems LLC
1880 South Dairy Ashford Road, Suite 412
Ashford Crossing II, Houston, TX 77077, United States

8. Contact

Email: sales@geniuscores.com · Phone: +1 346 430 1242

Return and Refund Policy

Return & Refund Policy

Effective Date: September 22, 2026 — geniuscores.com

Corenox Embedded Systems LLC operates geniuscores.com. This policy defines return and refund conditions for Google Merchant Center and international orders.

1. Return Period

Customers may request a return within 30 days of delivery for new products.

2. Eligibility

  • Item must be unused and in original condition (new only)
  • Order confirmation / proof of purchase required
  • RMA approval required before shipping any return

3. Non-Returnable Items

  • Custom-built or made-to-order products
  • Digital products / licenses
  • Gift cards

4. Return Process

Contact sales@geniuscores.com to start a return. Approved returns receive an RMA number and prepaid return-label instructions.

5. Return Shipping (Free)

For all approved returns within the 30-day window (defective and non-defective), we provide a free download-and-print return label. Return shipping is free to the customer. No restocking fee.

6. Damaged, Defective, or Incorrect Items

  • Free replacement, or
  • Full refund

7. Inspection & Refund Timing

Returns are inspected within 3 business days of receipt. Approved refunds are issued within 7 days after approval. Customers may request exchange/replacement instead of a refund when stock allows.

8. International Returns

Approved international returns use the same free prepaid label process to our designated return facility. For returns due to our error, related duties/taxes we can recover are also covered by us.

9. Shipping Model

Outbound orders ship from our Shenzhen, China fulfillment warehouse under a Delivered Duty Paid (DDP) model where offered — duties/taxes are included at checkout when applicable. Estimated delivery is 8–16 business days (see Shipping Policy).

10. Contact / Business Address

Email: sales@geniuscores.com
Business address: 1880 South Dairy Ashford Road, Suite 412, Ashford Crossing II, Houston, TX 77077, United States
Phone: +1 346 430 1242
Hours: Weekdays 9am–5pm (America/Chicago)

Payment Policy

Sales & technical support

Get in touch

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