A MOUNTING PLASTIC BASE WITH FITTED METAL TERMINALS AND PRINTED CIRCUIT BOARD FOR CONNECTION OF SMOKE OR HEAT DETECTORS TO EXTERNAL POWER SOURCES AND TO COMPATIBLE FIRE ALARM CONTROL SYSTEMS. ITS NOMINAL OPERATING VOLTAGE IS 24V DC (DIRECT CURRENT). THE BASE IS CONFIGURED FOR OPERATION AS A RELAY ALLOWING REMOTE DEVICES SUCH AS DOOR HOLDERS OR OTHER SAFETY EQUIPMENT TO BE TRIGGERED BY THE MOUNTED DETECTOR GOING INTO ALARM CONDITION. ONCE TRIGGERED, THE RELAY CIRCUIT WILL RETURN BY ITSELF TO NORMAL OPERATION WHEN THE BASE AND MOUNTED DETECTOR ARE BOTH RESET BY MEANS OF INTERRUPTION TO THEIR POWER SUPPLY.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 9027 - INSTRUMENTS AND APPARATUS FOR PHYSICAL OR CHEMICAL ANALYSIS (FOR EXAMPLE, POLARIMETERS, REFRACTOMETERS, SPECTROMETERS, GAS OR SMOKE ANALYSIS APPARATUS); INSTRUMENTS AND APPARATUS FOR MEASURING OR CHECKING VISCOSITY, POROSITY, EXPANSION, SURFACE TENSION OR THE LIKE; INSTRUMENTS AND APPARATUS FOR MEASURING OR CHECKING QUANTITIES OF HEAT, SOUND OR LIGHT (INCLUDING EXPOSURE METERS); MICROTOMES GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL - 9027 90 - MICROTOMES; PARTS AND ACCESSORIES CN CODE 902790 50 - PARTS AND ACCESSORIES, OF APPARATUS OF SUBHEADINGS 9027 20 TO 9027 80 ALSO CLASSIFIED IN ACCORDANCE WITH:- NOTE 2 (B) TO CHAPTER 90