Welcome to Keystone Electronics
Manufacturer and distributor professional PSTN and GSM Auto-Dialers, a wide range of Low Power/Low Cost Radio Transmitters and Receivers, and a selection of stand-alone WiFi Sensors, WiFi Cameras and Smart WiFi Plugs.
PSTN & GSM AUTO DIALERS
PSTN and GSM Auto Dialers that play a user programmable Voice Message or send an SMS to up to nine different telephone numbers.
RADIO TRANSMITTERS & RECEIVERS
Low Power, Low Cost 433 & 868MHz Transmitters and Receivers. Use for general switching or as part of a Wireless Security System including RC (Remote Control) Transmitter and Receivers, Motion Sensors, Pagers and Multi-Channel Wireless Receivers.