| 類型 | Manufacturer |
|---|---|
| 網站 | https://www.wirelesswizardry.com/ |
| 電話號碼 | 888-888-7620 |
Wireless Wizardry has been using 433MHz SuperHet modules for over 6 years (since available). They are supplied by the largest manufacturer in their industry Directed Electronics and are specified by them to have a range of 1/4 mile or more.