{"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":"2026-09-17T12:26:30+00:00","price":"28.45","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B09YLND5TS?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=daa2d21e6cb302aed2292893f077ddcb_PBSEP_!!!affid!!!_118045_&aa_creativeid=c0a6KZXYbPDu_ain7bYl_aeSI2_bw7YV56YbcSUkvRutOGyitI_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/x-sense-carbon-monoxide-detector-5-year-replaceable-battery-carbon-monoxide-alarms-for-home-digital-lcd-display-co-alarm-detector-peak-value-memory-b09ylnd5ts/prices","gtin":null,"id":5928,"model_number":null,"name":"X-Sense Carbon Monoxide Detector, 5-Year Replaceable Battery Carbon Monoxide Alarms for Home, Digital LCD Display CO Alarm Detector, Peak Value Memory","product_url":"https://mail.mainbuyer.com/product/x-sense-carbon-monoxide-detector-5-year-replaceable-battery-carbon-monoxide-alarms-for-home-digital-lcd-display-co-alarm-detector-peak-value-memory-b09ylnd5ts","urn":"MB-AWIN-GB-B09YLND5TS"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"28.45","historical_low":"28.45","last_observed_at":"2026-09-17T12:26:30+00:00","low_30d":"28.45","low_90d":"28.45","median_price":"28.45","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:26:30+00:00"}}