MOUNTING BASE FOR A SMOKE OR HEAT DETECTOR WITH AN OPERATING VOLTAGE OF 20-38V D.C. IT COMPRISES OF A CIRCULAR PLASTIC (ACRYLONITRILE BUTADIENE STYRENE OR ABS) MOUNTING WITH METAL FASTENINGS AND METAL CONNECTORS SPECIFIC TO THE DETECTOR RANGE BEING USED WITH THE BASE. DIMENSIONS 104.5 MM X 15.0 MM. THE TERMINALS PROVIDE TRANSMISSION OF ELECTRICAL POWER AND DATA TO AND FROM THE MOUNTED DETECTOR. THE PRODUCT CANNOT BE USED ON A STAND-ALONE BASIS BUT ONLY AS PART OF A FIRE ALARM CONTROL SYSTEM. IT HAS NO INBUILT WARNING FUNCTION AND PERFORMS NO PHYSICAL OR CHEMICAL ANALYSIS. IT DOES NOT HAVE AN INTEGRAL SOUNDER OR RECORDING DEVICE. IT IS SOLD SINGLY IN ITS OWN SMALL CARDBOARD BOX .

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 5B HAS BEEN USED TO IDENTIFY THE TYPE OF PACKAGING: SMALL CARDBOARD BOXES OR LARGER BOXES FOR 10 OR 100 UNITS GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 902790: MICROTOMES; PARTS AND ACCESSORIES CN CODE 90279050: PARTS AND ACCESSORIES: OF APPARATUS OF SUBHEADINGS 9027 20 TO 9027 80 ALSO CLASSIFIED IN ACCORDANCE WITH:- CHAPTER 90 NOTE 2(b) HARMONISED SYSTEM EXPLANATORY NOTES (HSEN) CHAPTER 90.27 NOTE (9) REFERS