{"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":"2026-09-18T08:30:12+00:00","price":"22.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0DTF3QR4R?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=244396a61cdd91bf76bdae47e72025ff_PBSEP_!!!affid!!!_118045_&aa_creativeid=bd3aVbw6JopepdeiV3eU6OjsxZtvDVQmKfDbPsfO_aP3xjeo_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/x-sense-carbon-monoxide-detector-with-replaceable-battery-xc0c-sr-2-pack-b0dtf3qr4r/prices","gtin":null,"id":13539,"model_number":null,"name":"X-Sense Carbon Monoxide Detector with Replaceable Battery, XC0C-SR, 2-Pack","product_url":"https://mail.mainbuyer.com/product/x-sense-carbon-monoxide-detector-with-replaceable-battery-xc0c-sr-2-pack-b0dtf3qr4r","urn":"MB-AWIN-GB-B0DTF3QR4R"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"22.99","historical_low":"22.99","last_observed_at":"2026-09-18T08:30:12+00:00","low_30d":"22.99","low_90d":"22.99","median_price":"22.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-18T08:30:12+00:00"}}