{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:27:44+00:00","price":"49.19","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0CCD8Y929?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=b66437a23c76aea271a4d7a46b2e03cc_PBSEP_!!!affid!!!_118045_&aa_creativeid=1132VVjfRAEHQfqDS9QMhhOqQpNFfSWiXkKqb_aN_azKhG23A_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://www.mainbuyer.com/evidence/products/x-sense-interlinked-smoke-and-heat-alarm-bundle-10-year-battery-hs21-b0ccd8y929/prices","gtin":null,"id":8058,"model_number":null,"name":"X-Sense Interlinked Smoke and Heat Alarm Bundle, 10-Year Battery, HS21","product_url":"https://www.mainbuyer.com/product/x-sense-interlinked-smoke-and-heat-alarm-bundle-10-year-battery-hs21-b0ccd8y929","urn":"MB-AWIN-GB-B0CCD8Y929"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"49.19","historical_low":"49.19","last_observed_at":"2026-09-17T12:27:44+00:00","low_30d":"49.19","low_90d":"49.19","median_price":"49.19","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:44+00:00"}}