{"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":"2026-09-17T12:28:09+00:00","price":"52.48","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F18TK5CV?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=c5ce50e48dea1d252f7ae24c72a586b2_PBSEP_!!!affid!!!_118045_&aa_creativeid=b8feag_bSTXtSxvIO7athLix_bGALqMSwrbmJGVh_aWL4tjay4_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/x-sense-smart-smoke-alarm-for-home-with-magnetic-mount-xs0d-mr-3-pack-b0f18tk5cv/prices","gtin":null,"id":8742,"model_number":null,"name":"X-Sense Smart Smoke Alarm for Home with Magnetic Mount, XS0D-MR, 3-Pack","product_url":"https://mail.mainbuyer.com/product/x-sense-smart-smoke-alarm-for-home-with-magnetic-mount-xs0d-mr-3-pack-b0f18tk5cv","urn":"MB-AWIN-GB-B0F18TK5CV"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"52.48","historical_low":"52.48","last_observed_at":"2026-09-17T12:28:09+00:00","low_30d":"52.48","low_90d":"52.48","median_price":"52.48","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:28:09+00:00"}}