A109ST-EX MT8781 20000mAh Explosion-Proof ATEX II 2GD Android Tablet

A109ST-EX MT8781 20000mAh Explosion-Proof ATEX II 2GD Android Tablet

Name: A109ST-EX MT8781 20000mAh Explosion-Proof ATEX II 2GD Android Tablet
Brand: Cenava

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The A109ST-EX pairs a 10.95-inch display with a removable 20000mAh battery — roughly double the capacity of the compact 10000mAh class, sized for a full shift plus overtime without a mid-day swap.

Explosion-Proof: Ex ib IIC T4 Gb / Ex ib IIIC T130°C Db (petrochemical); Ex ib I Mb with MA/KA (coal & mining); ATEX II 2GD Ex ib IIC T5 Gb / Ex ib IIIC T95°C Db

CPU: MediaTek MT8781 octa-core, 2×Cortex-A76@2.2GHz + 6×Cortex-A55@2.0GHz

OS: Android 16

RAM/ROM: 8GB+128GB

Display: 10.95" 1920×1200, 550cd/㎡, 10-point G+FF touch with AF coating, wet-hand & glove touch supported

Battery: 3.8V 20000mAh removable, 30W fast charging

Integrated I/O: RJ45 100M, DB9 RS232 (optional 422/485), HDMI, Type-C (USB2.0), USB-A 2.0×2, 3.5mm, TF (2TB), Micro-SIM ×2, 14Pin POGO, reserved aviation plugs (power + USB2.0)

Network: WiFi 5 (customizable WiFi 6), Bluetooth 5.2, 4G global; GPS/BeiDou/Galileo/GLONASS; NFC 13.56MHz

Protection: IP67, MIL-STD-810H 1.22m drop, -20°C~60°C , salt-spray tested

Optional Modules: 2D scanner (N4680), 20MP low-light night vision, ID card reader, UHF RFID (2m/5m), fingerprint (3 options), Tiantong or BeiDou-3 short-message module (choose one)

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Technical Specifications

Processor MediaTek MT8781 with 2 × Cortex-A76 at 2.2GHz and 6 × Cortex-A55 at 2.0GHz	System Android 16	Storage 8GB + 128GB	Display 10.95-inch 1920 × 1200 panel at 550 cd/m²
Cooling Fanless passive design	Network Dual-band Wi-Fi 5, Bluetooth 5.2	Battery Removable 3.8V 20000mAh pack	Drop Claim 1.22m, tested under the applicable MIL-STD-810H transit-drop method
ATEX Configuration II 2GD; Ex ib IIC T5 Gb / Ex ib IIIC T95°C Db	Petrochemical Gas Marking Ex ib IIC T4 Gb	Petrochemical dust Ex ib ⅢC T130℃ Db	Coal & Mining Ex ib I Mb with MA/KA

Petrochemical gas	Ex ib IIC T4 Gb	Ambient range per certificate schedule
Petrochemical dust	Ex ib IIIC T130°C Db	Dust scope and enclosure configuration per certificate
Coal & mining	Ex ib I Mb with MA/KA	Both mining documents tied to this SKU
ATEX gas	II 2GD; Ex ib IIC T5 Gb	EU certificate + Declaration of Conformity available
ATEX dust	II 2GD; Ex ib IIIC T95°C Db	Label matches surface-temperature scope

Why two temperature classes? The petrochemical marking and the ATEX marking cover different certified configurations — T4 (≤135°C) under the China Ex route, T5 (≤100°C) under ATEX. When you request a quote, we match the SKU to the marking your site requires, and the nameplate you receive carries exactly that string.

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Frequently Asked Questions about A109ST-EX ATEX II 2GD Android tablet

1. What is the exact MT8781 CPU architecture?

It's an octa-core part: 2 Cortex-A76 performance cores at 2.2GHz plus 6 Cortex-A55 efficiency cores at 2.0GHz, on a 6nm process. In practice that means inspection apps, camera work and a browser full of manuals stay responsive without a fan.

2. Which memory and storage configurations are available?

This model ships in one configuration: 8GB RAM + 128GB storage. The TF slot takes cards up to 2TB if you need more room for photos and offline maps.

3. Is the 20000mAh battery removable?

Yes — the 3.8V pack lifts out from the back with a single quarter-turn latch, no tools. One caution that applies here but not to our standard rugged tablets: on an Ex-certified unit the battery must never be swapped inside the classified zone. Walk out to a safe area, swap, walk back. That restriction comes from the Ex ib certification conditions, not from CENAVA — it is printed on the device label as well.

4. Does A109ST-EX provide Gigabit Ethernet?

No — the RJ45 port is 100M. For inspection forms, photos and SCADA polling that's more than enough; if your workflow moves large files over Ethernet, tell us and we'll look at a dock-based workaround.

5. Which data-capture options are available?

Four, and you pick them at order time because each one sits inside the certified boundary: a Honeywell N4680 2D scan engine, a 20MP low-light camera module, an ID-card reader, and a UHF RFID reader in 2m or 5m read-range versions. Tell us which combination you need before quoting — retrofitting later is not an Ex-safe shortcut.

6. Is IP67 the explosion-protection approval?

No, and confusing the two is the single most common mistake we see in tenders. IP67 is enclosure ingress protection — dust-tight, 1m immersion for 30 minutes. Explosion protection is a separate certification scheme entirely; on this unit that is Ex ib IIC T5 Gb / Ex ib IIIC T95°C Db under ATEX Group II Category 2GD. A device can hold IP67 and have no Ex approval at all. Most consumer "waterproof rugged tablets" are exactly that.

Optional Accessories