{"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":"26.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B07ZRKCD5M?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=b86ba7d2529b46bb50b61c65161d51bd_PBSEP_!!!affid!!!_118045_&aa_creativeid=e64d91Wn8w4oLruL21UlZlvyTZrUTdwe5J0FtPYTW_bDA13U_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://www.mainbuyer.com/evidence/products/x-sense-carbon-monoxide-detector-10-year-life-en-50291-standard-co03d-b07zrkcd5m/prices","gtin":null,"id":8097,"model_number":null,"name":"X-Sense Carbon Monoxide Detector, 10-Year Life, EN 50291 Standard, CO03D","product_url":"https://www.mainbuyer.com/product/x-sense-carbon-monoxide-detector-10-year-life-en-50291-standard-co03d-b07zrkcd5m","urn":"MB-AWIN-GB-B07ZRKCD5M"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"26.99","historical_low":"26.99","last_observed_at":"2026-09-17T12:27:45+00:00","low_30d":"26.99","low_90d":"26.99","median_price":"26.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:45+00:00"}}