Connect to your landline. Allows you to turn up to three devices on or off remotely. Simply call your landline from anywhere in the world to control each channel or check its status. 10A mains rated relay supplied...Electronics > Circuit Components > Printed Circuit Boards > Development BoardsK6501K6501541032906501044.34Quasar Electronics Limitedhttps://quasarelectronics.co.uk/Item/velleman-k6501-remote-control-by-telephone-kit
Velleman K6501 - Remote Control By Telephone Electronic Kit
This Remote Control By Telephone SELF-ASSEMBLY electronic kit makes it possible to turn up to three devices on or off over the telephone. It is also possible to check the condition of a switch (open or closed).
Example: when you are away on holiday, you may switch the lights on and off from time to time, check the alarm or turn on the heating before returning home.
A major advantage of this circuit lies in the fact that audio signals are used to tell whether a specific output has been turned on or off. Operation is protected by a user defined code, which is simply keyed in from the telephone keypad.
Note: Optional D30 case mentioned in the manual is no longer available.
a relay is included for one output: rated to switch loads of up to 230Vac / 28Vdc, 10A (additional relays can be purchased to populate the other two positions - Order Code RLY-40.31-SPDT-10A)
automatic pick-up can be selected for 8 to 3 rings
user-settable number code protection to stop unauthorised operation
audible/visual relay status confirmation
automatic hang-up if no code is entered within 20 seconds