IoTaWatt, Inc is a US company. The units are manufactured and shipped from it’s northeast location in scenic New Hampshire. We use the various services of the United States Postal Service, which in our opinion maintain the most reliable and economical network for this scale of business.


Shipping within the 50 US states is free for orders of $100 or more. All orders are shipped USPS Priority Mail with service from 1-3 days depending on distance and time-of-week. For orders less than $100, or those preferring to use Priority Mail Express, we charge the USPS retail rate with no additional fees.


For our northern neighbor favorable rates are available. We offer a flat-rate of $20 for packages up to 4 lbs. USPS First-Class International is used and the package typically arrives by Canada Post within 1½-2 weeks. Where you don’t see that offered in checkout, the weight exceeds 4 lbs.

UPS service is available for packages that exceed 4 lbs or where faster delivery is needed. UPS standard is very economical and delivery is fast and reliable within 3+ business days from east to west. Worldwide Saver is next business day delivery to Canada.

USPS Priority International is also available. This service is generally more expensive and slower than UPS, but may be a better buy in hard to service areas where UPS rates are higher.



Worldwide, the USPS maintains relationships with the national postal service in many destination countries and we accept orders from those countries. Orders are sent out using a commercial equivalent of First Class International. The official time frame is 1-3 weeks. Since COVID-19, service has been much slower, sometimes taking six-eight weeks. All orders have tracking numbers, however the details supplied by individual destination countries varies greatly, and see “Duties and Taxes” below.

The magic number with international shipping is 4 lbs (1.8kg). Rates increase dramatically after that. As such, we offer low flat rates below 4 lbs. Sometimes it may be advantageous to break up a larger order into two smaller orders. The shipping calculator in the shopping cart is helpful in making that decision.

0-2 lbs – $15 US, 2-4 lbs – $25 US


For faster guaranteed delivery, various levels of UPS worldwide service are available at checkout. Unlike the US postal service, UPS maintains their own fleet of planes and has a delivery operation in most countries around the world. Delivery is guaranteed and typically takes from 3-10 days depending on destination and service selected.

Duties and Taxes

IoTaWatt does not collect destination duties or taxes. We have enough experience with our own imports to appreciate how complex that can be. Destination postal services have infrastructure in place to collect whatever is due. We include the appropriate customs declarations with each international shipment. Each country has their own methods and procedures for notification and collection. It’s up to the individual recipient to contact their local postal service with the tracking number if there is a suspected delay or lost notification.