{"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":"2026-09-17T12:28:29+00:00","price":"39.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0BLZ63QQ9?maas=maas_adg_api_592388559938624374_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=0a643cf523b775142609495fd9d7916d&aa_adgroupid=6c5ab6d7ab21c7d6378066ee9d6f21c7_PBSEP_!!!affid!!!_118045_&aa_creativeid=1339rZIZDrVollbEJZQ8N9QHYWQxGRbpuuAc_bQuuHomm9ag_c"}],"product":{"brand":"TP-Link UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/kasa-ke100-kit-smart-radiator-thermostat-trv-starter-kit-hub-included-b0blz63qq9/prices","gtin":null,"id":9372,"model_number":null,"name":"Kasa KE100 KIT Smart Radiator Thermostat, TRV Starter Kit, Hub Included","product_url":"https://mail.mainbuyer.com/product/kasa-ke100-kit-smart-radiator-thermostat-trv-starter-kit-hub-included-b0blz63qq9","urn":"MB-AWIN-GB-B0BLZ63QQ9"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"39.99","historical_low":"39.99","last_observed_at":"2026-09-17T12:28:29+00:00","low_30d":"39.99","low_90d":"39.99","median_price":"39.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:28:29+00:00"}}