{"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":"2026-09-17T12:28:29+00:00","price":"59.98","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F192RDYS?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=545f8f61fc13652d22da7c413fd91110_PBSEP_!!!affid!!!_118045_&aa_creativeid=ffee_alttvirPQySQAykxWwXGJo8lCAtiABBFk_bY7Tgymc58_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/x-sense-smart-smoke-alarms-for-home-with-magnetic-mount-xs0d-mr31-b0f192rdys/prices","gtin":null,"id":9359,"model_number":null,"name":"X-Sense Smart Smoke Alarms for Home with Magnetic Mount, XS0D-MR31","product_url":"https://mail.mainbuyer.com/product/x-sense-smart-smoke-alarms-for-home-with-magnetic-mount-xs0d-mr31-b0f192rdys","urn":"MB-AWIN-GB-B0F192RDYS"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"59.98","historical_low":"59.98","last_observed_at":"2026-09-17T12:28:29+00:00","low_30d":"59.98","low_90d":"59.98","median_price":"59.98","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:28:29+00:00"}}