{"product_id":"upright-style-low-temperature-freezers-0-c-to-40-c-28-cu-ft-manual-defrost-ltf-901u","title":"Yamato LTF901U Upright Style Low Temperature Freezers 0°C To -40°C, 28 cu.ft., Manual Defrost","description":"\u003ch2\u003eUpright Style Low Temperature Freezers 0°C To -40°C, 28 cu.ft., Manual Defrost Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eUpright Style Low Temperature Freezer (model LTF901U)\u003c\/strong\u003e from Yamato Scientific is a 28 cu.ft. laboratory freezer holding 0°C to -40°C with manual defrost. LabSupplies.com, authorized dealer, supplies this upright unit with a microprocessor digital controller, dual temperature displays, and an audible-visual alarm package for protecting stored samples.\u003c\/p\u003e\n\u003cp\u003eConstruction centers on a 14-gauge zinc-coated galvanized steel chamber and a 16-gauge steel exterior finished in powder-coated cool gray. A single-stage refrigeration system with one hermetic compressor cools the 792 L interior, while the air-cooled condenser needs no liquid coolant. Refrigerant is CFC- and HCFC-free. Four adjustable shelves create five compartments and accept up to 30 racks.\u003c\/p\u003e\n\u003cp\u003ePower options span 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50\/60 Hz single-phase. Exterior dimensions are 54\" × 37\" × 79.5\", and shipping weight is 1,125 lbs. This freezer is UL Listed and made in the USA. Battery alarm back-up and a remote alarm relay extend monitoring during power or mechanical events.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroprocessor digital control:\u003c\/strong\u003e two displays show the set temperature and the actual chamber temperature simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm system:\u003c\/strong\u003e battery-operated audible and visual alarm signals mechanical or electrical failure, with over- and under-temperature settings, an alarm silencing switch, and a battery test switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote monitoring relay:\u003c\/strong\u003e a relay is provided for remote alarm hook-up, plus a 1\/2\" access port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration:\u003c\/strong\u003e single-stage system with one hermetic compressor, an air-cooled condenser, and CFC- and HCFC-free refrigerant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage capacity:\u003c\/strong\u003e 792 L interior with four adjustable shelves, five compartments, and capacity for 30 racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValidated performance:\u003c\/strong\u003e every freezer is tested for 7 days under demanding conditions and holds a constant low setpoint in warm +30°C ambient environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Low-Temp Freezer\u003c\/h2\u003e\n\u003cp\u003eMatching a low-temperature freezer to a lab means weighing storage volume against temperature needs, site power, and floor space. Review these axes before specifying a unit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e confirm your samples stay viable within 0°C to -40°C; reagents, tissues, and enzymes each have distinct setpoint requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity and shelving:\u003c\/strong\u003e a 28 cu.ft. \/ 792 L chamber with adjustable shelves and 30-rack capacity suits high-throughput biorepositories and shared core labs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e a microprocessor digital controller with dual displays lets technicians verify set versus actual temperature at a glance during audits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage and power:\u003c\/strong\u003e verify your circuit matches the available 115V, 208V, 230V at 60 Hz, or 220V at 50\/60 Hz single-phase configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint:\u003c\/strong\u003e measure doorways and aisles against the 54\" × 37\" × 79.5\" exterior and 1,125 lb weight before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample protection:\u003c\/strong\u003e battery alarm back-up, remote alarm relay, and optional CO₂\/LN₂ back-up guard contents during failures.\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\u003e28 cu.ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0°C to -40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefrost\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Capacity\u003c\/td\u003e\n\u003ctd\u003e792 L \/ 28 cu.ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Capacity\u003c\/td\u003e\n\u003ctd\u003e30 racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelving\u003c\/td\u003e\n\u003ctd\u003e4 adjustable shelves (5 compartments)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e38\" × 25\" × 51.25\" (96 × 63 × 130 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e54\" × 37\" × 79.5\" (137 × 93 × 201 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Control System\u003c\/td\u003e\n\u003ctd\u003eDigital control with two displays — one shows the set temperature, the other the actual chamber temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigeration System\u003c\/td\u003e\n\u003ctd\u003eSingle-stage system with one hermetic compressor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eCFC- \u0026amp; HCFC-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondenser\u003c\/td\u003e\n\u003ctd\u003eAir-cooled; no liquid coolant required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm System\u003c\/td\u003e\n\u003ctd\u003eBattery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance Testing\u003c\/td\u003e\n\u003ctd\u003eEvery freezer is fully tested for 7 days under demanding conditions; constant low setpoint guaranteed in warm (+30°C) ambient environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Requirements\u003c\/td\u003e\n\u003ctd\u003e115V \/ 208V \/ 230V, 60 Hz, 1-phase; 220V, 50\/60 Hz, 1-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eChart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eChamber is 14-ga. Zinc coated galvanized steel.\nExterior is 16-ga. steel. Power coated cool gray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN (Barcode)\u003c\/td\u003e\n\u003ctd\u003e797059930159\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e1125 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e101 × 43 × 53 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Size\u003c\/td\u003e\n\u003ctd\u003e28 CF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Certification\u003c\/td\u003e\n\u003ctd\u003eUL Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\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\u003eLTF-901U\u003c\/td\u003e\n\u003ctd\u003eEA\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\/u5676i2v9hz1lhj\/LTF%20Series%20Low%20Temperature%20Freezers.pdf?dl=13\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/low-temp-ltf-series-vertical-upright-freezers-73?category=21#attr=170\" 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\/chest-style-low-temperature-freezers-0-c-to-40-c-2-cu-ft-manual-defrost-ltf-001c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 2 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-3-cu-ft-manual-defrost-ltf-101c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 3 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-5-cu-ft-manual-defrost-ltf-201c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 5 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-9-cu-ft-manual-defrost-ltf-301c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 9 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-12-cu-ft-manual-defrost-ltf-401c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 12 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-14-cu-ft-manual-defrost-ltf-501c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 14 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-17-cu-ft-manual-defrost-ltf-601c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 17 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-21-cu-ft-manual-defrost-ltf-701c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 21 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-22-cu-ft-manual-defrost-ltf-801c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/chest-style-low-temperature-freezers-0-c-to-40-c-27-cu-ft-manual-defrost-ltf-901c\"\u003eChest Style Low Temperature Freezers 0°C To -40°C, 27 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-3-cu-ft-manual-defrost-ltf-101cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 3 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-5-cu-ft-manual-defrost-ltf-201cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 5 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-9-cu-ft-manual-defrost-ltf-301cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 9 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-12-cu-ft-manual-defrost-ltf-401cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 12 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-14-cu-ft-manual-defrost-ltf-501cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 14 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-17-cu-ft-manual-defrost-ltf-601cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 17 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-21-cu-ft-manual-defrost-ltf-701cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 21 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-22-cu-ft-manual-defrost-ltf-801cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-chest-style-low-temperature-freezers-0-c-to-40-c-27-cu-ft-manual-defrost-ltf-901cp\"\u003ePlatinum Chest Style Low Temperature Freezers 0°C To -40°C, 27 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-low-temperature-freezers-0-c-to-40-c-13-cu-ft-manual-defrost-ltf-401u\"\u003eUpright Style Low Temperature Freezers 0°C To -40°C, 13 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-low-temperature-freezers-0-c-to-40-c-18-cu-ft-manual-defrost-ltf-501u\"\u003eUpright Style Low Temperature Freezers 0°C To -40°C, 18 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-low-temperature-freezers-0-c-to-40-c-22-cu-ft-manual-defrost-ltf-601u\"\u003eUpright Style Low Temperature Freezers 0°C To -40°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/upright-style-low-temperature-freezers-0-c-to-40-c-25-cu-ft-manual-defrost-ltf-701u\"\u003eUpright Style Low Temperature Freezers 0°C To -40°C, 25 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-low-temperature-freezers-0-c-to-40-c-13-cu-ft-manual-defrost-ltf-401up\"\u003ePlatinum Upright Style Low Temperature Freezers 0°C To -40°C, 13 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-low-temperature-freezers-0-c-to-40-c-18-cu-ft-manual-defrost-ltf-501up\"\u003ePlatinum Upright Style Low Temperature Freezers 0°C To -40°C, 18 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-low-temperature-freezers-0-c-to-40-c-22-cu-ft-manual-defrost-ltf-601up\"\u003ePlatinum Upright Style Low Temperature Freezers 0°C To -40°C, 22 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-low-temperature-freezers-0-c-to-40-c-25-cu-ft-manual-defrost-ltf-701up\"\u003ePlatinum Upright Style Low Temperature Freezers 0°C To -40°C, 25 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/platinum-upright-style-low-temperature-freezers-0-c-to-40-c-28-cu-ft-manual-defrost-ltf-801up\"\u003ePlatinum Upright Style Low Temperature Freezers 0°C To -40°C, 28 cu.ft., Manual Defrost\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\n\u003cp\u003eLabSupplies.com is an authorized Yamato Scientific dealer, so every LTF901U ships as a genuine unit backed by the manufacturer warranty. Our lab-equipment specialists answer spec and configuration questions directly so your order is right the first time.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato Scientific dealer:\u003c\/strong\u003e genuine freezer with full manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e ready to order now, no waiting list.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips from USA inventory:\u003c\/strong\u003e domestic fulfillment for faster delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-equipment specialists:\u003c\/strong\u003e dedicated support for spec, voltage, and accessory questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat temperature range does the LTF901U maintain?\u003c\/h3\u003e\u003cp\u003eThe LTF901U holds a range of 0°C to -40°C. A single-stage refrigeration system with one hermetic compressor and a microprocessor digital controller maintains the setpoint, and the unit is validated to hold a constant low setpoint even in warm +30°C ambient environments.\u003c\/p\u003e\n\u003ch3\u003eHow much storage capacity and shelving does this freezer offer?\u003c\/h3\u003e\u003cp\u003eThis freezer provides 28 cu.ft. (792 L) of interior capacity. It includes four adjustable shelves creating five compartments and accommodates up to 30 racks. Interior dimensions are 38\" × 25\" × 51.25\" (96 × 63 × 130 cm).\u003c\/p\u003e\n\u003ch3\u003eWhat electrical supply does the LTF901U require?\u003c\/h3\u003e\u003cp\u003eThe LTF901U is available in 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50\/60 Hz single-phase. Confirm your facility circuit matches the selected voltage before installation.\u003c\/p\u003e\n\u003ch3\u003eWhat materials is the freezer built from?\u003c\/h3\u003e\u003cp\u003eThe chamber is 14-gauge zinc-coated galvanized steel. The exterior is 16-gauge steel finished in powder-coated cool gray. An air-cooled condenser is used, so no liquid coolant is required.\u003c\/p\u003e\n\u003ch3\u003eWhat alarm and monitoring features are included?\u003c\/h3\u003e\u003cp\u003eA battery-operated alarm emits both audible and visual signals on mechanical or electrical failure. It includes over- and under-temperature settings, an alarm silencing switch, and a battery test switch, plus a relay for remote alarm hook-up and a 1\/2\" access port.\u003c\/p\u003e\n\u003ch3\u003eWhat are the exterior dimensions and shipping weight?\u003c\/h3\u003e\u003cp\u003eExterior dimensions are 54\" × 37\" × 79.5\" (137 × 93 × 201 cm), and the unit weighs 1,125 lbs. Measure doorways, aisles, and the installation area before delivery. 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