A quality Japanese manufactured quartz-controlled transmitter, enclosed in a smart, steel case, measuring only 70 x 30 x 16 mm. Batteries are internal to the case. Power: 2 x AA "LR6(c)" batteries give a transmission time of approx. 200 hrs and a range of approx. 500 metres. This transmitter is suitable for body worn applications as well as room monitoring. Complete with a 2-channel pager size receiver, you may swap from channel to channel by simply flicking a switch; the receiver comes complete with earphones and built-in speaker.

Miniature UHF telephone transmitter measuring 20x12x12 mm. Transmits a crystal clear signal as soon as the handset is lifted. Line powered so requires no battery.

Pen transmitter. Quality Schaeffer pen that contains a concealed UHF transmitter can be used as a working pen while still transmitting.

A Credit Card sized transmitter, which has a voice activation function. Battery: Lithium CR2340 (3V) x 130 hours approx.

A quality UHF quartz controlled transmitter enclosed in a smart, steel case, measuring only 70mm x 30mm x 16mm. Batteries are internal to the case. Power: 2 x AA 'LR6(c)' batteries, it gives a transmission time of approx. 200 hours. Also available in a high power version (1000 metres version.) The high power is similar in size but only has a battery life of 20-40 hours.

This small device is easy to conceal in any mains powered equipment or outlet measuring only 43 x 16 x 13mm.

Calculator transmitter a standard calculator with built in concealed UHF transmitter

3 Way outlet with built in UHF transmitter, useable with domestic appliances. Intercepts conversations in a 15-metre radius, voltage 110V AC or 220V AC.

For use with all UHF transmitters, very versatile unit.

The receiver and recorder are one unit and once the transmitter has been installed the recorder and placed some distance away it will record the conversations, then switch back to standby automatically.