{"product_id":"tzone-tz-wf503l-wifi-ultra-low-temperature-data-logger-pt100","title":"Tzone TZ-WF503L Wi-Fi Ultra-Low Temperature Data Logger with PT100 Probe (-200°C to +200°C)","description":"\u003cp\u003eThe Tzone TZ-WF503L is a Wi-Fi temperature data logger with a high-precision PT100 probe that measures from -200°C to +200°C. It uploads readings to the cloud in real time, so you can monitor ultra-low freezers, dry ice and cryogenic storage from any browser or phone. No gateway is needed.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e-200°C to +200°C range:\u003c\/strong\u003e PT100 probe for ultra-low and cryogenic temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-precision PT100 sensor:\u003c\/strong\u003e Accuracy ±(0.15 + 0.002·|t|) °C, with fast response and strong anti-interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-time Wi-Fi upload:\u003c\/strong\u003e 2.4 GHz \/ 5 GHz, 802.11 b\/g\/n. Cloud storage is unlimited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNFC setup:\u003c\/strong\u003e Tap your phone to read and change settings with the \"Real-time Data Logger\" NFC app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18,368 records on the device:\u003c\/strong\u003e Data is kept locally as well as on the cloud.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual alarms:\u003c\/strong\u003e Cloud platform alerts plus a local buzzer, with user-definable limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD display:\u003c\/strong\u003e Shows temperature, alarms, Wi-Fi and battery status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong battery life:\u003c\/strong\u003e Replaceable 3.6 V lithium battery lasts about 2 years at the default 60-minute upload interval.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged IP65 enclosure:\u003c\/strong\u003e Compact and wall-mountable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePress the button to start the logger.\u003c\/li\u003e\n\u003cli\u003eSet it up by tapping it with the NFC app on your phone.\u003c\/li\u003e\n\u003cli\u003ePlace the probe inside the freezer or storage unit and mount the logger outside. It logs temperature and uploads over Wi-Fi.\u003c\/li\u003e\n\u003cli\u003eView reports on your mobile or PC.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThe -200°C to +200°C range applies to the probe. Mount the logger body where the ambient temperature stays between -30°C and +60°C, within range of your Wi-Fi network.\u003c\/p\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eVaccine transport · Ultra-low temperature freezers and dry ice · Pharmaceutical storage · Refrigerated food storage · Container shipments · HACCP, food and catering\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePT100 temperature probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasuring range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-200°C to +200°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±(0.15 + 0.002·|t|) °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasuring medium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating conditions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30°C to +60°C, 5–95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWi-Fi 2.4 GHz \/ 5 GHz, 802.11 b\/g\/n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNFC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUpload interval\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDefault 60 min, 4 records per upload (1 every 15 min), customizable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCloud platform + buzzer, user-definable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDevice memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18,368 records\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplaceable 3.6 V lithium, about 2 years (at 60-min upload)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize \/ weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99 x 85 x 28 mm \/ 174 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIP rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a gateway?\u003c\/strong\u003e\u003cbr\u003eNo. The WF503L connects directly to your Wi-Fi network and uploads to the cloud platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the whole logger go inside a -80°C freezer?\u003c\/strong\u003e\u003cbr\u003eNo. Only the probe goes inside. The logger body must stay between -30°C and +60°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if Wi-Fi goes down?\u003c\/strong\u003e\u003cbr\u003eThe logger keeps recording and stores up to 18,368 records on the device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the battery replaceable?\u003c\/strong\u003e\u003cbr\u003eYes. It uses a replaceable 3.6 V lithium battery that lasts about 2 years at the default upload interval.\u003c\/p\u003e","brand":"Tzone","offers":[{"title":"Default Title","offer_id":68115488637227,"sku":null,"price":449.0,"currency_code":"SAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/7788\/8555\/files\/Tzone-WF503L-01-main.jpg?v=1794621777","url":"https:\/\/www.tefco.sa\/products\/tzone-tz-wf503l-wifi-ultra-low-temperature-data-logger-pt100","provider":"TEFCO","version":"1.0","type":"link"}