{"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":"19.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0G48ZRTXL?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=43abb155fe5cdc2aabd9e829eb80affc_PBSEP_!!!affid!!!_118045_&aa_creativeid=3c87ZAZf2xBjynx6kveXe_b5QMqEou6JgG2tHRocNB8sPnJk_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/x-sense-smoke-alarm-with-voice-alerts-and-17-locations-xs0b-sn-1-pack-b0g48zrtxl/prices","gtin":null,"id":8095,"model_number":null,"name":"X-Sense Smoke Alarm with Voice Alerts and 17 Locations, XS0B-SN, 1 Pack","product_url":"https://mail.mainbuyer.com/product/x-sense-smoke-alarm-with-voice-alerts-and-17-locations-xs0b-sn-1-pack-b0g48zrtxl","urn":"MB-AWIN-GB-B0G48ZRTXL"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"19.99","historical_low":"19.99","last_observed_at":"2026-09-17T12:27:45+00:00","low_30d":"19.99","low_90d":"19.99","median_price":"19.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:45+00:00"}}