{"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":"13.72","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FJXDWVDP?maas=maas_adg_api_584538503507687357_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBcfe6cdca35bea7104e3de61e1b0cf89d&aa_adgroupid=fff35a9553f6fd69039ffd3302309f19_PBSEP_!!!affid!!!_118045_&aa_creativeid=23abXXgMoX4b6ndNL7V5zTMTyUMY4onKD907Z6ZOMBxBJS0_c"}],"product":{"brand":"X-SENSE UK","evidence_url":"https://www.mainbuyer.com/evidence/products/x-sense-heat-alarm-with-10-year-sealed-battery-xh02-1-pack-b0fjxdwvdp/prices","gtin":null,"id":8074,"model_number":null,"name":"X-Sense Heat Alarm with 10-Year Sealed Battery, XH02, 1-Pack","product_url":"https://www.mainbuyer.com/product/x-sense-heat-alarm-with-10-year-sealed-battery-xh02-1-pack-b0fjxdwvdp","urn":"MB-AWIN-GB-B0FJXDWVDP"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"13.72","historical_low":"13.72","last_observed_at":"2026-09-17T12:27:45+00:00","low_30d":"13.72","low_90d":"13.72","median_price":"13.72","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:45+00:00"}}