Every product stocked by Circonis is selected for field-proven reliability in aviation, marine, defence and industrial applications. No consumer products — only tools professionals depend on.
The petroleum industry's trusted standard since 1945 — detects water contamination in fuel tanks with an instant colour change at the precise water interface. For conventional petroleum fuels.
Engineered for reformulated and oxygenated fuels — ethanol blends (E5, E10, E85) and MTBE-treated fuels. Same reliable colour-change detection, updated for modern fuel chemistry.
For accurate fuel level measurement in storage tanks. Applied to a dipstick, the paste marks the exact fuel-to-air interface — the definitive manual verification method trusted by fuel operators worldwide.
Magnetic nozzle adapter for fast, clean and spill-free AdBlue transfer. Fits standard DEF fill necks across most HGVs, vans and passenger cars. Eliminates costly AdBlue spills and overflow.
Permanent industrial marker rated to 1100 °C (2000 °F). Marks survive welding, heat treatment, forging and furnace processes. For component traceability in heavy industrial environments.
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We supply professional buyers, depots, maintenance teams and resellers across Europe. If you need larger quantities, recurring orders or a formal quote with VAT breakdown, contact us directly — we will get back to you promptly.
Proper EU VAT documentation issued for every B2B order.
Dispatched from Berlin with tracking to all EU member states.
Orders processed and dispatched promptly from stock.
Stripe-powered checkout with 3D Secure and SCA compliance.
