The table lists kits which are generally available. At any given time, there may be parts shortages or other logistics issues. Any kit which will not ship within 2 days will be 100% refunded.

Foreign orders, please write for shipping estimate.

AvailabilityPriceShipping via USPSComment
516F-2 KitIn Stock$75$4
516F-2 Assembled PCBIn Stock (kit) allow
+1 day for assembly
Emergency LED Kit
PIR Sensor
USB Charger
In Stock

In Stock
In Stock
In Stock
$12 basic kit

no extra charge
for options when
ordered with a

4:1 Remote RF Switch KitNov 1, 2021$229$15
6:1 Remote RF Switch Kit Dec 1, 2021$249$20
6:2 Remote RF Matrix KitJan 1, 2022$399$20
TDR (by W0SJ) In Stock $15$4
Beverage RF Switch Kit
WiFi Control PCB
In Stock

In Stock
In Stock

$9 (kit only)

$15 (kit + case)
$0 when ordered
with kit
Remote Control via WiFiComing Soon$100$20


The preferred method of payment is PayPal. Buttons are on most pages for simple ordering. Write to arrange other payment methods.


US domestic shipping is via USPS First Class unless other arrangements are made. Shipping charges are essentially what USPS charges. US shipping is fixed price and shown for each item. An email with a tracking number will be automatically provided when the item ships. Foreign shipping is usually $20-30 for small kits and delivery can be 2-4 weeks.