Register and Create Account - Premium Package

Rent-To-Own program   NEW

The value of each subscription you purchase (1 or more) can be applied as a discount towards a purchase of the full license of our related HumidAir (Psychrometrics) desktop software (HumidAir Excel Add-In or HumidAir Desktop Application). This also applies retroactively for all subscriptions since the beginning of 2019.

Save all subscription order IDs. When you wish to apply this discount towards a purchase of the full license on any of the mentioned desktop software send us an email and we will provide the steps to complete the purchase of the full license with the discount applied.

If you have any questions, please don't hesitate to contact sales. Contact information is provided on the following page:
 Contact Us - (opens in a new tab).



STEP 1 - Register

For immediate access to the premium features of the HumidAir Web - Psychrometric Calculator, you may purchase a 5 months subscription by using our automated and secure online ordering system. After ordering, you will receive a notification mail with your password required in the STEP 2, to create your account.

Subscription for 5 months is: USD 29.95 , (USD 6 / month).

The Registration is valid for 5 months (150 days), and it will not be extended automatically. After 5 months if you wish to continue using the premium features of the application you will have to register and create a new account again.

The Registration includes free technical support for the duration of the subscription.

Available ordering options (open the order form to select):

To open the order form click the button: Register for HumidAir Web - Psychrometric Calculator .

After you receive the email with the password, proceed to the STEP 2 and create account.



STEP 2 - Create Account


After you create the account, go back to the "Calculator" page and Login to start using the application.







If you need help or have any questions contact support at: support@megawatsoft.com.