{"product_id":"sound-level-calibrator-si351","title":"Sound Level Calibrator Stellar Instruments SI351","description":"\u003cp\u003eThe SI351 Sound Level Calibrator is a compact, easy-to-use device designed for checking and calibrating sound level meters and microphones. It provides two standard sound pressure levels (94 dB and 114 dB) at a fixed 1 kHz reference frequency, making it suitable for both field and laboratory calibration. It supports 1\/2 inch microphones and can be used with adapters for other sizes. With its simple operation and portable design, it is ideal for professionals in sound measurement, safety inspection, and environmental monitoring.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:e7d113a7-8b03-4119-9560-5f7243c6d37d-0\" data-testid=\"conversation-turn-2\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"66d3d122-c15d-45ab-be46-cd13a6a2d882\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cul data-start=\"612\" data-end=\"965\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"12ld48p\" data-start=\"612\" data-end=\"663\"\u003eProvides 94 dB and 114 dB sound pressure levels\u003c\/li\u003e\n\u003cli data-section-id=\"1dh620p\" data-start=\"664\" data-end=\"699\"\u003eFixed 1 kHz reference frequency\u003c\/li\u003e\n\u003cli data-section-id=\"rck2jz\" data-start=\"700\" data-end=\"751\"\u003eCompatible with 1 inch and 1\/2 inch microphones\u003c\/li\u003e\n\u003cli data-section-id=\"zjmuie\" data-start=\"752\" data-end=\"781\"\u003eSimple and easy operation\u003c\/li\u003e\n\u003cli data-section-id=\"11bbvh1\" data-start=\"782\" data-end=\"854\"\u003eComplies with IEC 60942 (2003) Class 2 and ANSI S1.40-1984 standards\u003c\/li\u003e\n\u003cli data-section-id=\"1shi7uk\" data-start=\"855\" data-end=\"890\"\u003ePortable and lightweight design\u003c\/li\u003e\n\u003cli data-section-id=\"nt279u\" data-start=\"891\" data-end=\"965\" data-is-last-node=\"\"\u003eBattery operated (9V) with LED status indicators (power and low battery)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Measuremart","offers":[{"title":"Default Title","offer_id":56970776740000,"sku":"SLSI351","price":1600.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/1666\/4224\/files\/Sound-Level-Calibrator-SI351.jpg?v=1777446765","url":"https:\/\/www.measure-mart.com\/products\/sound-level-calibrator-si351","provider":"Measuremart","version":"1.0","type":"link"}