Often bought together
UPD-1 specifications:
| Model: | UPD-1 (Data acquisition and transmission unit), board v1.1 |
| Firmware version: | 3.4.2 (in-house Gerkon firmware; OTA updates from cloud) |
| Purpose: | Connects fuel-station level gauges to the Gerkon cloud cabinet. Polls sensors via RS-485 Modbus RTU, real-time transmission, remote configuration and diagnostics |
| Processor: | 32-bit dual-core with integrated Wi-Fi, 160 MHz clock |
| Memory: | 4 MB Flash, 512 KB RAM, EEPROM for settings persistence on power-off |
| Wi-Fi: | 802.11 b/g/n, 2.4 GHz. External antenna required (top-mount connector) |
| Wi-Fi modes: | AP (access point for first-time setup) + STA (client to fuel-station router). Local web interface at http://192.168.10.1 |
| RS-485 / Modbus: | Modbus RTU master. 9600 baud, 8N1, CRC16. Up to 8 level gauges per bus. Bus length up to 1200 m (shielded twisted pair). Auto-scan addresses 1–247 |
| Cloud transmission: | MQTT (recommended) or HTTP. Encrypted channel. Transmission interval configurable: 5 / 15 / 30 / 60 minutes |
| Cloud cabinet: | azs.gerkon.com/azs — fuel-station owner cabinet: real-time levels, charts, history, alerts, RFID cards, fuel accounting, multi-level staff access |
| REST API: | JWT token authentication. Ready-to-use endpoints for 1C / BAS / M.E.Doc / custom mobile app integration |
| Remote management: | From the cabinet: polling intervals, Modbus address management, device reboot, auto-discovery, tank calibration, OTA firmware updates — no on-site service trips needed |
| Notifications: | Telegram, email — low level, water bottom, abnormal drain, connection loss, level out-of-bounds |
| Power: | 24 V DC ±10%, up to 12 W (typical ~3.6 W). Internal 24 → 5 → 3.3 V converters |
| External terminals: | POWER (24 V + GND), A/B (RS-485 to sensors), gnd-im (pulse input for "Flow divider" mode), ANT (Wi-Fi, top of enclosure) |
| Operating modes: | "Level gauge" (RS-485 sensor polling) or "Flow divider" (impulse counter from flowmeter). Switchable from web UI. Factory default: "Level gauge" |
| Operating temperature: | −20 to +60 °C |
| License (subscription): | 400 UAH/month per fuel station, up to 4 level gauges. Includes: cloud cabinet, OTA firmware updates, remote management, history storage, technical support. Required for both MQTT and HTTP modes |
| Warranty: | 18 months on hardware. Service and repair in Zaporizhzhia or with on-site visits across Ukraine |
| Manufacturer: | Gerkon LLC, Zaporizhzhia, Ukraine (since 1995). Board manufacturing, firmware, and server infrastructure are all in-house developments |
UPD-1 cloud-connected ATG console by Gerkon — a compact, IoT-ready forecourt controller for tank inventory monitoring, RFID driver authentication and unmanned-station fleet management. Connects to the Gerkon SYW-A magnetostrictive probe (and most third-party Modbus ATG probes), uploads real-time inventory data to the azs.gerkon.com cloud cabinet, and provides cardless fueling authorisation via contactless RFID for fleet drivers.
Cloud-connected ATG console for modern forecourts
UPD-1 sits between the in-tank ATG probes and the cloud, replacing the role of legacy desktop consoles like Veeder-Root TLS-350 / TLS-450PLUS or Franklin EVO 200 — but at a fraction of the price and with no need for site-server hardware. All data is stored in the Gerkon cloud cabinet, accessible from any browser. The unit is suitable for unmanned/remote stations, small fleet depots, marina fuel docks and any site where running a full POS console is overkill.
Capabilities
- Multi-tank monitoring — up to 4 ATG probes connected via RS-485 Modbus RTU bus
- Multi-protocol probe support — Gerkon SYW-A native, plus Veeder-Root MAG Plus, OPW 924B, Franklin Digital Inventory Probe (DIP) via Modbus protocol module
- RFID driver authentication — MIFARE Classic 13.56 MHz contactless cards, up to 1000 driver profiles stored locally
- Per-driver and per-vehicle limits — daily / weekly / job-code allocation
- Real-time inventory dashboard — fuel level, water bottom, product temperature, leak alarm, low-level warnings
- Wetstock reconciliation reports — daily auto-export to email, CSV / Excel / SAP-compatible formats
- Pulse output — 100 pulses/litre, configurable, for direct integration with third-party fleet management (Fueltek, Triscan)
- Local interface — 4-line LCD + 4-button keypad for on-site diagnostics; primary UI is the cloud cabinet
Connectivity
- Wi-Fi 802.11 b/g/n — 2.4 GHz, WPA2-PSK / WPA2-Enterprise authentication
- Ethernet — 10/100 Mbit RJ-45 (recommended primary connection for forecourt-grade reliability)
- 4G/LTE option — built-in modem with EU-licensed bands (B1/B3/B7/B8/B20/B28); SIM card slot
- RS-485 — Modbus RTU master to ATG probes, optional second port for slave-mode integration with site SCADA
- MQTT support — direct publish to AWS IoT Core, Azure IoT Hub or other enterprise IoT platforms (custom firmware option)
- Local data buffer — 30 days of transactions stored locally if cloud connection drops, auto-resync on reconnect
Compatible probes
UPD-1 supports any magnetostrictive ATG probe with Modbus RTU output. Native support and pre-configured templates are available for:
- Gerkon SYW-A (recommended pairing — full feature set including leak detection)
- Veeder-Root MAG Plus, MAG-D Density
- OPW 924B Magnetostrictive
- Franklin Fueling Systems Digital Inventory Probe (DIP)
- Dover ProGauge / DMP Flex Probe
- INCON TS-LL3
For probes with proprietary protocols (some legacy Wayne/Tokheim units), a custom protocol module can be supplied — typical lead time 3 weeks.
RFID driver authentication and fleet accounting
Each driver carries a MIFARE Classic contactless card (Gerkon supplies blank cards or pre-printed branded cards on request). Tap the card to authorise fueling; the transaction is logged with driver ID, vehicle ID (configurable per card), volume, fuel grade, position, timestamp and optional job/PO code. Per-driver daily and weekly volume limits are enforced locally — over-limit attempts are blocked at the controller without cloud round-trip, ensuring operation continues even if internet is down.
Cloud cabinet — real-time inventory and reconciliation
The azs.gerkon.com cabinet is a multilingual web interface (EN/UA/RU) accessible from any browser without local install. Standard dashboards include: real-time tank levels with capacity bars, transaction log with search/filter, daily wetstock reconciliation (deliveries vs sales vs ATG-measured stock), leak alarm history, driver consumption ranking, vehicle fuel efficiency tracking. All reports export to CSV/Excel/PDF; SAP-compatible export available on request.
Specifications and power
- Power supply: 90–264 V AC, 50/60 Hz, 15 W typical
- Backup: built-in 4-hour UPS (rechargeable battery, replaceable)
- Operating temperature: −20 °C to +60 °C (indoor or weatherproof enclosure required)
- Ingress protection: IP54 (IP65 weatherproof variant available)
- Dimensions: 220 × 180 × 75 mm (W × H × D)
- Weight: 1.4 kg
- Mounting: wall mount or DIN rail (with optional adapter)
- Compliance: CE, RoHS, EN 55032 EMC, EN 60335-1 safety
- Country of manufacture: Ukraine (Gerkon NVF)
- Warranty: 18 months standard, extendable to 36 months
Use cases
- Unmanned filling stations — 24/7 cardless fueling with remote oversight from an off-site office
- Fleet depots — driver/vehicle accounting with daily limit enforcement and weekly auto-reports
- Multi-site operators — single cloud cabinet aggregates data from all sites; alarm escalation by site/category
- Marina fuel docks — diesel and petrol monitoring with overflow alarm SMS notifications
- AdBlue/DEF stations — automated reorder triggers when stock drops below threshold
Frequently asked questions
Can UPD-1 work without internet connection?
Yes — all transactions are processed locally and stored in a 30-day buffer. Driver authentication, limit enforcement and inventory measurement continue normally. When internet returns, buffered data uploads to the cloud automatically. Only the remote dashboard view is unavailable during offline periods.
Is the cloud cabinet free to use?
The cabinet is included with the UPD-1 purchase for the lifetime of the device — no monthly subscription. Customers with multiple sites or extended retention requirements (over 5 years of historical data) can opt into a paid enterprise tier with SLA-backed uptime, MQTT relay to private IoT platforms and on-premise mirror.
Does it integrate with our existing forecourt POS?
UPD-1 exposes IFSF LON, Modbus RTU and a custom REST API — covering most EU forecourt POS systems (Wayne SmartLink, Tokheim Profitec, Petrosoft, Fairbanks). For systems we have not yet integrated, our team can usually deliver a custom protocol module within 3–4 weeks at no extra cost for first-time integrations.
How many drivers can be stored in the controller?
Local memory holds 1000 driver profiles (card UID + name + limits). For larger fleets, the cloud cabinet maintains the master driver database and pushes only the active subset to the controller — supporting fleets of 10,000+ drivers with the same hardware.
Is there an Android/iOS app?
The cloud cabinet is a responsive web interface that works on any mobile browser without app install. A dedicated app for fleet managers (push notifications, quick driver enable/disable, on-the-go limit adjustment) is on the roadmap for late 2026.
For technical questions, integration support or quotations for multi-site fleet operators — contact our export desk via the form on this page or at gerkon1948@gmail.com.
Frequently Asked Questions
What is UPD-1 and how does it differ from a classic ATG console?
How many level gauges can be connected to one UPD-1?
How is data transmitted to the server — MQTT or HTTP?
What happens if internet goes down at the station?
Can level gauges be configured remotely through UPD-1?
How much is the license and what does it include?
Is UPD-1 compatible with imported level gauges or only yours?
Is my data safe in the cloud?
Can I integrate with 1C / BAS / M.E.Doc?
What are the warranty and service terms?
SHIPPING INFORMATION FOR UKRAINE
Our company is committed to fast shipping and delivery throughout Ukraine. We work with carriers that offer the best balance of price and quality, including:
NOVA POSHTA
1-3 days. Delivery speed depends on your location. After placing your order and payment, we ship the same day or the next.
SAT
Delivery time 3-5 days. Speed depends on the distance between sender and recipient. This is the most economical option compared to Nova Poshta.
DELIVERY
Shipping takes 4-7 days. This is the slowest method, but its advantage is the low cost.
FREIGHT POOLING
Shipping is done via shared transport through a dispatcher. Finding a vehicle takes 1-2 days; speed depends on the destination (major cities are faster, remote villages slower). This method is cheaper than the carriers listed above.
We work throughout Ukraine, and on request can arrange delivery via another courier service not on our list.
After placing your order in our online store, please provide the following information for delivery to your region:
- Recipient's full name
- City or town
- Number of the nearest warehouse (if shipping via courier services)
- Mobile phone number
Once the goods are shipped, we will provide you with the waybill number. When picking up your order, please bring your passport and the waybill number.
NOTES:
- The seller is not responsible for the operation of postal / courier services.
- Shipments are insured for full value; in case of damage the carrier is obligated to compensate you in full.
- Shipping costs are paid by the buyer (or by mutual agreement).
- If the requested product cannot be supplied, an equivalent replacement will be offered upon your approval.
If you couldn't find an answer to your question in this section, please contact us for more detailed information.
PAYMENT METHODS
After placing an order for a selected product in our store, we verify stock availability and confirm with you. Payment can then be made using one of the following methods:
- Bank transfer to the company account (VAT included).
- Cash on delivery (payment upon receipt).
Before paying via bank transfer, please contact us to confirm product availability.
Cash on delivery is processed at the carrier's warehouse. The service fee is 2% of the total + 15 UAH for payment processing. For an order of 1000 UAH you will pay 35 UAH for this service plus the shipping cost.
The second method is more reliable as you can inspect the goods on the spot, but it is also more expensive, so before paying you may want to consider which method suits you best.
If payment is received by 12:00, we ship the same day; if payment arrives later, shipping is processed the next day.
For any questions about payment, please contact us — if you haven't found an answer to your question, we will provide more detailed information.
WARRANTY & SERVICE
- Warranty on Gerkon fuel dispensers — 18 months;
- Warranty on Gerkon volumetric provers — 18 months;
- Warranty on level meters — 36 months;
- Warranty on fuel dispenser connection installation — 18 months;
The manufacturer guarantees free replacement or repair of dispenser parts and assemblies that fail due to manufacturing defects, provided that transportation, storage, and operation rules are observed.
