We ship worldwide. At checkout you can choose from low cost airmail options and express courier services like DHL or FedEx.

Within the UK we normally dispatch using Royal Mail or DHL. You choose the level of service at checkout.

VAT sales tax (20%) is included in the price displayed on the website. This tax applies to UK customers and EU customers. It will continue to apply to customers in the 27 EU member states from 1 January 2021. This is because we are located in Northern Ireland. The Northern Ireland Protocol, agreed by the EU to facilitate cross border trade with the Irish Republic after Brexit, also applies to the rest of the EU.  We continue to charge the UK rate of vat to customers in the 27 EU member states and there is no further tax to pay upon delivery. We can continue to zero rate the vat for EU business customers who enter their vat number at checkout. 

Customers outside the EU do not pay vat and the tax will be removed at checkout. Local import taxes may apply - check with your local authority.

Currency. All products are priced in Pound Sterling (GBP, £). Using the "Currency" tab you can change the displayed currency to either Euro (EUR, €) or US Dollar (USD, $). This is an indicative exchange rate, automatically updated daily and is based upon the prevailing bank rate. The price you see may be displayed in USD or EUR but payment processing will be conducted in GBP. This means that your card issuer will apply their usual exchange rate, which is likely to be different from our indicative rate. 

Intended usage

1. Secure power supply of sensitive avionics in an aircraft installation.

2. DO-160 power supply qualification of avionics equipment that does not conform.

3. Protection of avionics against the effects of ground faults.

4. Simplification of avionics emergency backup supply design.

5. Lockout of under/over-range voltage supply from avionics.

6. Avionics radio transmitter output power maximizer (most radios will output designed

power at 13.8V).

7. Step down converter from 24/28V aircraft supplies to 12V equipment.

Typical AvioGuard supplied devices

1. EFIS systems

2. Electronic engine monitoring devices

3. Aviation radios and transceivers (VHF, HF)

4. Aviation navigation radios

5. Aviation transponders

6. ADSB receivers and transceivers

7. GPS receivers

8. Intercom systems