{"product_id":"water-bath-digital-5l-bm-302a","title":"Yamato BM302A Water Bath Digital 5L","description":"\u003ch2\u003eWater Bath Digital 5L Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eYamato Scientific Water Bath Digital 5L (BM302A)\u003c\/strong\u003e is a 5 L constant-temperature water bath built for routine heating and incubation work, with an operating range of ambient +10 to 90°C and ±1°C accuracy. LabSupplies.com supplies this unit as an authorized Yamato Scientific dealer.\u003c\/p\u003e\u003cp\u003eA flat-bottom reservoir with no internal heater or sensor keeps the φ240 mm bath easy to drain and clean. Heating runs through a 1000W aluminum-sheathed heater, while a Pt100Ω sensor feeds PID control managed by an onboard microprocessor. Setpoints enter through keypad and read out on a white LED digital display down to 1°C.\u003c\/p\u003e\u003cp\u003eEach bath measures 16 × 16 × 14 in and weighs roughly 16 lbs, fitting standard bench footprints. Two voltage builds cover global lab power: BM302A for 100-115V and BM312A for 200-230V. Manufacturing follows Yamato's ISO 9001:2015 and ISO 14001:2015 quality and environmental systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePID microprocessor control:\u003c\/strong\u003e holds setpoints across ambient +10 to 90°C with ±1°C accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite LED digital display:\u003c\/strong\u003e keypad entry with a minimum display digit of 1°C for clear, repeatable setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy-clean flat bath:\u003c\/strong\u003e 5 L reservoir with φ240 mm internal diameter and no heater or sensor inside the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1000W aluminum-sheathed heater:\u003c\/strong\u003e paired with a Pt100Ω sensor for stable, fast heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLayered safety system:\u003c\/strong\u003e automatic and independent overheat prevention, temperature upper-limit error detection, and an overcurrent protection fuse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible operation modes:\u003c\/strong\u003e fixed temperature, quick auto stop, auto stop, and auto start.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Water Bath\u003c\/h2\u003e\u003cp\u003eSelecting a water bath comes down to matching reservoir volume, temperature performance, and site power to your protocol. Use these axes to confirm the bath fits both the workflow and the bench.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e a 5 L flat bath suits flasks, tubes, and sample racks; match reservoir volume to the largest vessel batch you run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e ambient +10 to 90°C covers most incubation, warming, and reagent-conditioning tasks below boiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e PID microprocessor control with digital LED readout gives tighter setpoint stability than analog dials for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e choose BM302A for 100-115V mains or BM312A for 200-230V mains to match your facility's supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety features:\u003c\/strong\u003e overheat prevention, upper-limit error detection, and fuse protection matter for unattended or extended runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint:\u003c\/strong\u003e confirm the 16 × 16 × 14 in envelope fits available bench space near power and a drain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e5 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1°C \u003csup\u003e*2\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Control System\u003c\/td\u003e\n\u003ctd\u003ePID control by microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Setting \/ Display\u003c\/td\u003e\n\u003ctd\u003eWhite LED digital display, key entry, min. digit 1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater\u003c\/td\u003e\n\u003ctd\u003e1000W aluminum sheathed heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor\u003c\/td\u003e\n\u003ctd\u003ePt100Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eAutomatic overheat prevention; independent overheat prevention; temperature upper-limit error; overcurrent protection fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation Function\u003c\/td\u003e\n\u003ctd\u003eFixed temperature; quick auto stop; auto stop; auto start\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003eambient +10 to 90°C \u003csup\u003e*1\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolybutylene terephthalate resin (with fiber glass), chromium-free electrogalvanized steel sheets, stainless steel, aluminum (exterior)\nStainless steel, aluminum (bath reservoir)\nGlass wool (heat insulator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN (Barcode)\u003c\/td\u003e\n\u003ctd\u003e797059928606\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e16 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e16 × 16 × 14 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Size\u003c\/td\u003e\n\u003ctd\u003e5 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003e\u003csup\u003e*1\u003c\/sup\u003e No-load operation of bath only; maximum temperature varies with circumstances and operating conditions. \u003csup\u003e*2\u003c\/sup\u003e Measured under ambient temperature 23°C ±5°C, humidity 65%RH ±20%, per Yamato Scientific test conditions.\u003c\/small\u003e\u003c\/p\u003e\n\u003ch2\u003eAvailable Sizes and Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBM-302A\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBM-312A\u003c\/td\u003e\n\u003ctd\u003e220V\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dropbox.com\/s\/gmmlqntxgufkavi\/BM302-A%20BM312A%20Water%20Bath.pdf?dl=0\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dropbox.com\/s\/0hq2208jf4gq010\/YLT%20ISO9001%20ENG%20%28EXP%20FEB%202022%29.pdf?dl=0\" target=\"_blank\" rel=\"noopener\"\u003eISO 9001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dropbox.com\/s\/9qrf1gfsvoeiea4\/YLT%20ISO14001%20ENG%20%28Ex%20June%2026%202023%29%20%E8%8B%B1%E6%96%87%E8%AA%8D%E8%A8%BC%E6%9C%89%E5%8A%B9%E6%9C%9F%E9%99%90.pdf?dl=57\" target=\"_blank\" rel=\"noopener\"\u003eISO 14001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-bm-series-constant-temp-lab-water-baths-25?category=70#attr=1\" target=\"_blank\" rel=\"noopener\"\u003eYamato Scientific Official Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMore in This Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/water-bath-analog-4l-bm-100\"\u003eWater Bath Analog 4L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/water-bath-digital-7l-bm-401\"\u003eWater Bath Digital 7L\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/water-baths\"\u003eView all Water Baths →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eLabSupplies.com ships the Yamato Scientific BM302A and BM312A as genuine, warrantied units backed by a team that answers spec questions before you order.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato Scientific dealer:\u003c\/strong\u003e genuine equipment covered by the manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e ready to order in both 115V and 220-230V configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips from USA inventory:\u003c\/strong\u003e dispatched directly to your lab.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-equipment specialists:\u003c\/strong\u003e dedicated support for voltage, capacity, and application questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat temperature range does the Yamato BM302A water bath cover?\u003c\/h3\u003e\u003cp\u003eThe BM302A operates from ambient +10 to 90°C with ±1°C accuracy. Temperature is regulated by PID control through an onboard microprocessor and a Pt100Ω sensor.\u003c\/p\u003e\n\u003ch3\u003eWhat is the bath capacity and reservoir size?\u003c\/h3\u003e\u003cp\u003eThe bath holds 5 L and has a φ240 mm internal diameter. The reservoir is a flat design with no heater or sensor inside the tank, which simplifies draining and cleaning.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the BM302A and BM312A?\u003c\/h3\u003e\u003cp\u003eVoltage is the only difference. The BM302A runs on 100-115V mains and the BM312A runs on 200-230V mains; both share the same 5 L capacity, temperature range, and control system.\u003c\/p\u003e\n\u003ch3\u003eWhat heater and safety features does this bath include?\u003c\/h3\u003e\u003cp\u003eA 1000W aluminum-sheathed heater provides heating. Safety devices include automatic overheat prevention, independent overheat prevention, temperature upper-limit error detection, and an overcurrent protection fuse.\u003c\/p\u003e\n\u003ch3\u003eWhat are the dimensions and weight for bench planning?\u003c\/h3\u003e\u003cp\u003eThe unit measures 16 × 16 × 14 in (L×W×H) and weighs approximately 16 lbs. Confirm bench clearance near a power source and drain before installation.\u003c\/p\u003e\n\u003ch3\u003eHow are temperature settings entered and displayed?\u003c\/h3\u003e\u003cp\u003eSettings are entered by keypad and shown on a white LED digital display with a minimum display digit of 1°C. Operation modes include fixed temperature, quick auto stop, auto stop, and auto start.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/labsupplies.com\/products\/water-bath-digital-5l-bm-302a#product\",\n      \"name\": \"Yamato BM302A Water Bath Digital 5L\",\n      \"sku\": \"BM-302A\",\n      \"mpn\": \"BM-302A\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"url\": \"https:\/\/labsupplies.com\/products\/water-bath-digital-5l-bm-302a\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"845.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/water-bath-digital-5l-bm-302a\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"gtin12\": \"797059928606\",\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/BM302_BM312.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato BM302A 5L digital water bath, ambient +10 to 90°C, PID control with ±1°C accuracy. 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