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 and Smart WiFi Plugs.

PSTN & GSM AUTO DIALERS

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.

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RADIO TRANSMITTERS & RECEIVERS

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.
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