Knight Grade 3, 4 Terminal Surface Contact Brown

G3 Double Reed Surface Contact with Magnetic Interference Detection and Selectable Resistors White.

This is compatible with all mainstream UK control panels and includes both eol and alarm by-pass resistor options.
It has a microswitch tamper.

Colour: Brown

Environmental Class 2

Operation Gap : 30mm Approx

Dimensions: 78mm x 25mm x 20mm

Terminals : 4-Terminal Block

Tamper - TACT Microswitch

Includes Resistors compatible with - Honeywell, Ademco, Scantronic, Menvier, texecom, Pyronix, Castle, Aritech, DSC, Gardtec and Guardall Control Panels.

Alarm Values 1k, 4k7,5k6,6k8,8k2

EOL Values 1kr,2k2,4k7,5k6,8k2

Just move easily accessible jumper to select.
Note this contact already meets the requirements of TS50131-2-6: 2004