{"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":"2026-09-17T12:27:45+00:00","price":"25.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FS22RK86?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=5dfd4233eda6ebdd8b099af12d9f7e92_PBSEP_!!!affid!!!_118045_&aa_creativeid=d7f4g10xcXGa7D_bJdT_aZXPBM_aSrvKms5uYJzhxG6AzndywE_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/x-sense-wi-fi-smoke-alarm-for-home-with-app-functions-xs01-wx-1-pack-b0fs22rk86/prices","gtin":null,"id":8089,"model_number":null,"name":"X-Sense Wi-Fi Smoke Alarm for Home with APP Functions, XS01-WX, 1-Pack","product_url":"https://mail.mainbuyer.com/product/x-sense-wi-fi-smoke-alarm-for-home-with-app-functions-xs01-wx-1-pack-b0fs22rk86","urn":"MB-AWIN-GB-B0FS22RK86"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"25.99","historical_low":"25.99","last_observed_at":"2026-09-17T12:27:45+00:00","low_30d":"25.99","low_90d":"25.99","median_price":"25.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:45+00:00"}}