The GD-04A back-up module, which provides David with the ability to work approx. 12 to 24 hours continually without an external power supply.
The GD-04D DTMF module, which allows you to control David’s output relays by entering numeric codes (DTMF codes) on a telephone keypad during calls
Smoke Sabre Test Spray is designed to test the functionality of Jablotron’s optical smoke detectors. Contains 150 ml of testing aerosol
The GD-02T temperature sensor is an accessory of the GD-02-DIN universal GSM communicator and controller. It is necessary for using the temperature measurement function, and monitoring temperature limit values.
O termómetro eletrónico multifuncional TM-201A permite ser utilizado em qualquer tipo de instalações em que seja necessário medir um ou dois valores de temperatura e com uma ativação do Relé.
