BENCHMARK

Benchmark Multi Therm™ Heating/Cooling VortexerTemperature control from 0 to 100°CExchangeable blocks, for tube sizes 0.2 to 50mlPrecision contoured wells for uniform thermal transferTwo models: Heat/Cool or Heat onlySequence link function for linking or repeating programs (HC model only)Blocks sold separatelyThe MultiTherm shaker is a temperature controlled vortexer, useful for a variety of molecular biology applications.. Despite its modest 8 x 11 in. footprint, all popular tubes and plates are compatible, including as many as six 50ml tubes. Speed, time and temperature settings are continuously visible on the LCD, simultaneously showing both actual and selected values. Integral over-temperature control ensures long life, safety and sample integrity.SpecificationSpeed:Variable, 200 to 1500 rpm (or off)Orbit:3mmTemp. Range (H5000-HC):Ambient -20 to 100°CTemp. Range (H5000-H):Ambient +5 to 100°CTemperature Increment:0.1°CTemp. Accuracy:+/- 1.0°CCapacity:Per Selected BlockSpeed Increment:10 rpmHeating Rate:5.0°C per. min.Cooling Rate:2.5°C per. min.Dimensions: (w x d x h)8.25 x 11.5 x 8.25 in. / 21 x 29 x 21 cmWeight:18 lbs (8kg)Timer:1 min. to 99 hours 99min. / continuousElectrical:115 or 230V, 50-60Hz, 500WWarranty:2 Years Related ProductItemDescriptionH5000-HC*MultiTherm shaker with heating & coolingH5000-H*MultiTherm shaker with heating only   Available Blocks (Sold Separately)H5000-02Block, 96 x 0.2ml or 1 x PCR plateH5000-05Block, 54 x 0.5mlH5000-CMBBlock, combination, 15x0.5ml & 20 x 1.5mlH5000-15Block,35 x 1.5mlH5000-20Block, 35 x 2.0mlH5000-12*Block, 24 x 12mm (Max. speed: 1200 rpm)H5000-150*Block, 12 x 15ml (Max speed: 750 rpm)H5000-500*Block, 6 x 50ml (Max. Speed: 750 rpm)H5000-MP*Block, 1 x microplate (Ambient -10° to 80°C)H5000-DWMP*Block, 1 x microplate, deepwell (Ambient -10° to 80°C)H5000-WB*Block, multipurpose for water, beads, etc. (4x2.6x1")H5000-1232Block, 24 x 2ml AutoSample (HPLC) vials (12x32mm)H5000-025Block, 48 x 250ul vial insert (6x30mm)H5000-CUBlock, custom drilled, for tubes. vials up to 40mm tall   * The larger mass of this block results in a temperature range of ambient -10° to 100°CAlat Laboratorium Umum

Benchmark H1001-M- IncuShaker Mini Shaking IncubatorExtremely compact, just 11" wideTOUCH Screen control over time, speed and temperatureHorizontally circular 19mm orbit for aeration & mixingInstantly exchange flask clamps with MAGic Clamp™ accessories (PATENTED)Program STEP feature for linking consecutive programsThe Incu-Shaker™ Mini is the most compact shaking incubator in its class. Despite the remarkably small footprint, a large 11.5 x 9.5 in. work space accepts several platforms and a variety of flasks, tubes and other common vessels.The standard platform (included) features a non-slip, rubber coated surface, ideal for tissue culture flasks, Petri dishes and staining trays.The convenient MAGic Clamp™ (PATENTED) platform is also available for use with Erlenmeyer flasks and test tube racks. The unique, magnetic attach- ment method is the easiest way to instantly change between flask clamps of different sizes.SpecificationTemperature Range:Ambient +5° to 70°CTemperature Increments:+0.1°CTemperature Uniformity:±0.25°CTemperature Accuracy:±0.1°CShaking Speed Range:30 to 300rpmSpeed Increments:1rpmShaking Orbit:19mm (4/4")Operating Temp Range:+4 to +65°CPlatform Dimensions:9.5 x 11.5 in./28 x 41 x 33 cmExterior Dimensions (W x D x H):11 x 18.8 x 13 in. / 28 x 48 x 33 cmHeight with Lid Open:25 in. / 63 cmTimer:1 min. to 48 hours / continuousWeight:25 lbs (11.5kg)Electrical:115 or 230V, 50-60Hz, 300WWarranty:2 Years Related ProductItemDescriptionH1001-M-E*Incu-Shaker Mini with flat mat platform Optional PlatformsH1000-MRMAGic Clamp™ universal platform for flasks and tube racks (9.5 x 11.5)H1000-P-MP4 x microplate platformH1000-P-SPSpring platform for unique vessel types MAGic Clamp™ AccessoriesH1000-MR-CMBADJUSTABLE flask clamp, accepts 125ml, 250ml & 500ml (max. 5x500, 8x250 or 12x125ml)H1000-MR-25Flask clamp for H1000-MR, 25ml, max.20H1000-MR-50Flask clamp for H1000-MR, 50ml, max.20H1000-MR-125Flask clamp for H1000-MR, 125ml, max.12H1000-MR-250Flask clamp for H1000-MR, 250ml, max.8H1000-MR-500Flask clamp for H1000-MR, 500ml, max.5H1000-MR-1000Flask clamp for H1000-MR, 1000ml max. 2H1000-MR-MPClamp for 1 x microplate for H1000-MR, max. 4H1000-MR-1550Tube Rack, 30x15ml &20x50ml tubes with Magnets on Bottom (max. 1)H1000-MR-T15Tube Rack for H1000-MR, 32x15ml, max. 2H1000-MR-T50Tube Rack for H1000-MR, 15x50ml, max. 2H1000-MR-T600Rack for H1000-MR, 4x500/600ml bottle, max. 1H1000-MR-T15HTube Rack, 12x1.5ml horizontal, max. 2H1000-MR-TSRAngled tube rack holder, adjustable tilt (max. 1)Alat Laboratorium Umum

Benchmark myFuge™ Mini CentrifugeClik-N-Lok™ INSTANT rotor attachmentEight position microtube rotorStorage compartment for PCR rotor & 0.5ml adaptersNear silent operationDecelerates in just one secondFour position PCR strip rotorThe MyFuge™ Mini centrifuge is a personal centrifuge that virtually fits in the palm of your hand. Ideal for quick spin downs of microtubes and PCR tubes, the MyFuge is extremely easy to use. Simply close the lid and the rotor instantly reaches 6,000 rpm. Open the lid, and the rotor quickly decelerates to a stop for removing samples.An increased capacity, eight-position microtube rotor is included and comes installed. Also included is a second rotor for 0.2ml PCR tubes and strips which is stored (together with the rotor removal key) in a convenient compartment on the bottom of the centrifuge. When the rotor is not in use, storage in this compartment prevents loss or misplacement of the rotor.SpecificationSpeed6,000rpm / 2,000xgCapacity8 x 1.5/2.0ml32 x 0.2ml4 x PCR StripsDimensions5.7 x 6.9 x 4.5 in.(14.5 x 17.8 x 11.4 cm)Weight2.2 lbs / 1kgElectricalUniversal Voltage, 100 to 240V, 50-60HZ, 250WWarranty2 Year Related ProductItemDescriptionC1008-C*myFuge™ Mini Centrifuge with CLEAR lidC1008-B*myFuge™ Mini Centrifuge with BLUE lidC1008-G*myFuge™ Mini Centrifuge with GREEN lidC1008-P*myFuge™ Mini Centrifuge with PURPLE lidC1008-R*myFuge™ Mini Centrifuge with RED lidC1008-A5-8Replacement adapter pack, 0.5ml 8/pk.C1008-A2-8Replacement adapter pack, 0.2ml 8/pk. * Includes US Plug. For EU plug, please add (-E). Centrifuge

Benchmark CO2 IncubatorsPrecision temperature control, 6-sided heatingPrecise monitoring over CO2 with dual beam IR sensorSeamless, stainless-steel chamberDigital control of humidity percentage (PLUS models only)With our unique and proprietary heat distribution technology, the Benchmark ST Series of CO2 incubators provide the highest levels of temperature accuracy with minimal fluctuation (within 0.1°C). The six-side heating system, in combination with a low speed internal fan, uniformly spreads air throughout the chamber (without air exchange from the external environment). The chamber walls are constructed of high grade (316) stainless-steel, and allcorners are rounded, preventing the accumlation of dirt/debris.For added security, all models feature an internal alarm to alert the user if the CO2 percentage changes, or the temperature fluctuates by more than 1°C from the set point. In addition, a “quick-cal” calibration button allows for quickly adjusting the chamer temperature to match that of a properly calibrated external thermometer.Two series (standard and PLUS) are each available in 45L and 180L chamber sizes. PLUS models include advanced programming for high heat decontamination (at 125°C), a unique split inner glass door for access to the chamber without exposing it fully to the external environment and programmable humidity percentage, up to 95%.SpecificationTemperature Range:Ambient +5° to 60°CTemperature Increments:0.1°CTemperature Uniformity:± 0.4°C*Temperature Stability:0.1°CTemperature Accuracy:0.1°CCO2 Range:0 to 20%CO2 Increment0.1%CO2 Accuracy± 0.1%CO2 Sensor:Dual Beam IRChamber Dimensions: (45L)13.2 x 14.2 x 15.4 in. / 33.5 x 36.1 x 39.2 cmChamber Dimensions: (180L)18.7 x 20.8 x 28 in. / 47.3 x 52.8 x 71 cmChamber Volume:45L / 180LChamber Material:Stainless Steel (316)Exterior Dimensions (45L):16.5 x 18.3 x 21.8 in. / 42 x 46.5 x 55.3 cmExterior Dimensions (180L):22 x 26.2 x 37.2 in / 56 x 66.5 x 94.5 cmWeight (45L):77 lbs / 35 kgWeight (180L):172 lbs / 78 kgElectrical:120V or 230V, 50-60Hz (350W)Warranty:2 years  PLUS Models Only High Heat Decon:125°C for 8 hoursHumidity Control:Up to 95%Split Inner Door Compartments:45L: 2 / 180L: 6 Related ProductItemDescriptionH3550-45*Benchmark ST-45 CO2 Incubator, 45 Liter, 115V with two shelvesH3550-180*Benchmark ST-180 CO2 Incubator, 180 Liter, 115V with three shelves  H3551-45PBenchmark ST-45 PLUS CO2 Incubator, 45 Liter, 115V with two shelves. Includes: High heat decontamination, humidity control and split inner door with 2 compartmentsH3551-180PBenchmark ST-180 PLUS CO2 Incubator, 180 Liter, 115V with two shelves. Includes: High heat decontamination, humidity control and split inner door with 6 compartments  Optional Acessories H3550-45-SHAdditional shelf for 45 liter incubators, 1 eachH3550-180-SHAdditional shelf for 180 liter incubators, 1 eachH3550-45-SKStacking kit for 45 liter incubatorH3550-180-SKStacking kit for 180 liter incubator (height of top display approximately 135cm)H2300-REGRegulator (optional), required for connecting to a CO2 sourceBT4001*Orbi-Shaker ™ CO2 , Remote controlled orbital shaker with flat mat platform (13 x 12in.) For 45L and 180L modelsBT4011*Orbi-Shaker ™ CO2 XL, Remote controlled orbital shaker with flat mat platform (16 x 16.5in.) For 180L models ONLY.   * 115V with US plug, for 230V, please add (-E)Alat Laboratorium Umum

Benchmark myTemp™Mini Digital IncubatorsDigital temperature controlPersonal sized, 13 x 14.5" footprint (20L)Accepts bottles and flasks up to 2LTwo models: Heat Only or Heat/CoolInternal outlet, for installation of shaker, rockers, etc.With digital temperature control, the MyTemp incubators provide convenient “set and walk away” operation, eliminating the need for external thermometers and repetitive “fine tuning” of an analog control knob. Simply choose the desired temperature and the incubator immediately begins to heat up (or cool down, -HC model only) while accurately monitoring the chamber temperatureand conveniently displaying the temperature in real time on the large LED control panel.Despite a modest footprint of 14.5 x 13″, the MyTemp incubators feature large internal chambers, capable of storing flasks and bottles up to 2 liter. In addition, the incubators include two adjustable shelves and an internal outlet for powering small shakers, rockers and other instrumentation. A mini nutating rocker (supplied with both flat and dimpled mats) is available for agitation of samples during incubation.SpecificationTemperature Range (H):Ambient +5° to 60°CTemp. Range (HC):Ambient -15°C to 60°C*Temperature Accuracy:0.5°C (at 37°C)Temperature Uniformity:+/- 1.5°C (at 37°C)Temperature Increment:1°CDimensions: (w x d x h) Exterior:13.2 x 14.5 x 18.7 in. / 33.5 x 37 x 47.5 cmInterior:10.3 x 9.3 x 12.8 in. / 26 x 23.5 x 32.5 cmPlatform Dimensions (H3D1020):9.5 x 11.5 in./ 23.5 x 29 cmOperating Temp. Range (H3D1020):+4 to +65°CCapacity:20L, (0.75 cu. ft.)Weight:15 lbs / 6.5 kgWarranty:2 YearsElectrical:100 to 240V, 50-60HzWarranty:2 Years * Minimum temperature is approx. 7°C in 22°C room temp. Related ProductItemDescriptionH2200-H*MyTemp™ Mini Digital Incubator, Heat OnlyH2200-HC*MyTemp™ Mini Digital Incubator, Heat and Cool   Optional AccessoriesH3D1020Mini Nutating Mixer, 8x6" platform with dimpled & flat mats, 115VH3D1020-EMini Nutating Mixer, 8x6" platform with dimpled & flat mats, 230VH2200-SHExtra shelf, 10.5 x 8 in.Alat Laboratorium Umum

Benchmark SureTemp™ Precision IncubatorsPrecision temperature control up to 75°CDual-Convection technology, excellent uniformity and recoveryIncludes SureCheck™ temperature logger and softwareStainless steel chamber with internal power outletThe new SureTemp™ Incubator series provides the highest level of temperature control with uniformity and stability levels that are unmatched by competitive models in the same class.Each incubator is equipped with the SureCheck™ data logging system for verification of chamber temperature. The SureCheck system records temperature data points as often as every 60 seconds and stores this information on a flash drive. The data can then be viewed and saved using the included the SureCheck software. The recorded data can also be used to plot temperature points on a graph or exported to a spread sheet program for verification or storage/record keeping.Unlike other laboratory incubators, the SureTemp series offers “Dual-Convection” technology, allowing users to choose between mechanical convection mode* (for exceptional temperature uniformity) or gravity convection mode* (for longer incubations where airborn contamination or drying of samples may be an issue). The heating elements are strategically located on multiple sides of the chamber and contents can be viewed with the separate inner glass door without disrupting the temperature environment.* Mechanical Convection: Incorporates optimally positioned heating elements in conjunction with an internal chamber fan to control the internal temperatue.Gravity Convection: Eliminates any airflow from the chamber, relying solely on the heating elements and gravity to control the internal temperature.SpecificationTemperature Range:Ambient +5° to 75°CTemperature Accuracy:±0.25°CTemperature Uniformity:±0.25°CTemperature Increments:+0.1°CTemperature Stability:+0.1°CTimer:1 min. to 48 hours / continuousChamber Material:Stainless Steel (316)Electrical:120V or 230V, 50-60HzPower Consumption:40L: 420W / 70L: 520W / 130L: 670W   H2505-40, 40 Liter ModelInterior Dimensions:13.7 x 13.7 x 13.7 in. / 35 x 35 x 35 cmExterior Dimensions:22.4 x 23.3 x 22.8 in. / 57 x 59.2 x 58 cmWeight:42 kg / 95 lbs   H2505-70, 70 Liter ModelInterior Dimensions:17.7 x 13.7 x 17.7 in. / 45 x 35 x 45 cmExterior Dimensions:26.4 x 23.3 x 26.8 in. / 67 x 59.2 x 68 cmWeight:62 kg / 136.5 lbs   H2505-130, 130 Liter ModelInterior Dimensions:21.7 x 17.7 x 21.7 in. / 55 x 45 x 55 cmExterior Dimensions:30.3 x 27.2 x 30.7 in. / 77 x 69.2 x 78 cmWeight:70kg / 154.4 lbs Related ProductItemDescriptionH2505-40*SureTemp Incubator, 40L, 115VH2505-70*SureTemp Incubator, 70L, 115VH2505-130*SureTemp Incubator, 130L, 115V   Option Accessory Shelves (2 each included with each Incubator)H2505-40SHExtra shelf, stainless steel for 40L modelH2505-70SHExtra shelf, stainless steel for 70L modelH2505-130SHExtra shelf, stainless steel for 130L model * 115V with US Plug. For 230V (EU Plug), please add(-E).Alat Laboratorium Umum

Benchmark myTemp™65HCAccurate temperature control from 0° to 60°CPowerful compressor maintains 0°CStainless-steel internal chamberInternal power outlet for shaker, mixers, etc.For floor standing use or on bench-tops less than 32" tallIdeal for BOD and Drosophila applicationsThe myTemp 65HC Incubator is designed to provide accurate and uniform temperature control from 0 to 60°C. The broad temperature range of the instrument expands the use of this incubator to both heating and cooling applications.A large, digital display allows for visualization of the chamber temperature and the remaining incubation time, while an internal light is included for improved visualization of the chamber. In addition, a built in, internal outlet can be used to provide power to small instruments, such as shakers, rockers, etc.With forced air technology and stainless steel inner construction, uniform heat transfer is ensured throughout the internal chamber. When set for sub-ambient temperatures, the powerful compressor is activated, quickly cooling the chamber to the desired temperature..With an exterior height of 39 inches (100cm), the incubator is designed to be floor-standing, yet is also compact enough for bench-use. (Not recommended for use on benchtops taller than 32″/81cm). The instrument is supplied with two, adjustable height shelves, while additional shelves can also be purchased separately (item: H2365-SH).SpecificationTemperature Range:0°C to 60°C (RT-25°C to 60°C)Temperature Accuracy:0.5°C (at 37°C)Temperature Uniformity:+/- 1.0°C (at 37°C)Temperature Increment:0.1°CDimensions: Exterior:21.25 x 21 x 39.35 in. / 54 x 53.34 x 99.85 cmInterior:15.75 x 12.75 x 19.75 in. / 40 x 32.4 x 50.2 cmCapacity:65L, (2.3 cu. ft.)Capacity of BOD bottles:30 bottles (300ml)Weight:117 lbs / 53 kgRefrigerant:R134AElectrical:120, 60HZ or 230V, 50Hz (385W)Warranty:2 YearsWarranty: 2 Years Operating Temp. Range:+10 to +30°C Request A QuoteItemDescriptionH2265-HC*MyTemp™ 65 Heating and Cooling Incubator, inlcudes two stainless steel shelves  H2265-SHExtra shelf, stainless-steel * 115V with US Plug. For 230V (EU Plug), please add (-E). Alat Laboratorium Umum

Benchmark myTemp™ Mini CO2Digital control of temperature and CO2Personal sized, 13 x 14.5" footprint (20L)Accepts bottles and flasks up to 2LIncludes 2 stainless steel shelvesDual beam, infrared sensorAt only 13 inches wide, the myTemp Mini CO2 is the smallest and most economical incubator for applications requiring CO2 gas control. Its small footprint makes the incubator ideal for use inside of biological safety cabinets, isolating sensitive cultures or for any laboratory simply trying to conserve bench space. With a thick layer of high efficiency insulation surrounding the chamber, the incubator is also ideal for transportation of cells. Once power has been disconnected, the incubator maintains temperature levels within 10% of the set parameter for up to 1 hour*. In additioneach model includes a 12V vehicle power adapter for operating the instrument in a car, boat, etc.Both temperature and CO2 percentage are digitally adjustable and displayed in real time on the large LED control panel. This panel also features a “Cal” function, for easy in-lab calibration of the temperature or CO2. In addition, humidity (up to 80%) can be added to the chamber by inserting the included (stainless steel) humidity reservoir.The CO2 level is constantly monitored using dual beam infrared sensing technology. In the event of a drop in CO2 , audible and visual alarms are triggered, notifying the user of the error.Despite its small size, the incubator features a relatively large 20L chamber with the capacity for flasks and bottles up to 2 liters. Two removable, stainless-steel shelves are included. The shelves are perforated to improve airflow within the chamber.* If disconnected from the CO2 supply, CO2 percentage decreases by approx. 1% /30 minSpecificationTemperature Range:Room Temperature -10°C to 55°CTemperature Accuracy:0.25°C (at 37°C)Temperature Uniformity:0.5°C (at 37°C)Temperature Increment:0.1°CCO2 Range:0 to 20%CO2 Sensor:Dual beam infraredCO2 Accuracy:0.1% (at 5%)Humidity70 to 80%Dimensions: (w x d x h) Exterior:13.2 x 14.5 x 18.7 in. / 33.5 x 37 x 47.5 cmInterior:10.3 x 9.3 x 12.8 in. / 26 x 23.5 x 32.5 cmCapacity:20L, (0.7 cu. ft.)Weight:15 lbs / 6.5 kgElectrical:100 to 240V, 50-60HzWarranty:2 Years Request A QuoteItemDescriptionH2300-HC2*MyTemp™ Mini CO2 Digital Incubator, includes stainless steel shelves (2ea.), 4mm & 6mm tubing, air filter, 12V power supply and humidity reservoir   Optional AccessoriesH2300-REGCO2 regulator (connects to CO2 tank)Alat Laboratorium Umum

BenchMixer BV1000 Vortex MixerPowerful motor for INSTANT vortexingContinuous or "touch" operationQ-Drive™ dynamic balancing systemVariable speed from 200 to 3200 rpmWide variety of accessoriesThe BenchMixer™ sets the new standard in vortex mixing. With advanced Q-Drive™ technology, the BenchMixer provides smooth instant vortexing of even the largest sample sizes, including full 50ml tubes. The unique counter-balance system creates maximum vortexing action, while minimizing noise and excessive vibration. This results in quieter, more efficient and longer lasting operation.Other features include: “no-walk” suction feet, cold room/incubator compatibility and spill-proof electronic controls.SpecificationSpeed:200 to 3200 rpmOperating modes:Touch or continuousOrbit:3mmOperating Temp. Range:+4 to +45°CDimensions: (w x d x h)5 x 6.3 x 6.7 in. / 13 x 16 x 17 cmWeight:8.4 lbs (3.8 kg)Electrical:115V, 60Hz or 230V, 50Hz, 180WWarranty:2 Years Request A QuoteItem:Description:BV1000*BenchMixer Vortex MixerBV1000-FLATOptional 3 in. flat head attachmentBV1000-COMBOOptional combination head for one microplate & microtubes (38x1.5 & 28x0.5)BV1000-H15Optional attachment, 12 x 1.5ml, horizontalBV1000-H150Optional attachment, 4 x 15ml tubes, horizontalBV1000-H500Optional attachment for 2 x 50ml, horizontal * 115V with US Plug. For 230V with EU Plug, please add -E).Alat Laboratorium Umum

Benchmixer™ V2 Vortex MixerReversible top platform, cup or flat-dimpled surfacePowerful motor for INSTANT vortexingContinuous or "touch" operationQ-Drive™ dynamic balancing systemVariable speed from 200 to 3200 rpmWide variety of accessories, for tubes up to 50mlThe BenchMixer™ V2 utilizes a smooth and powerful mixing technology similar to the original BenchMixer, with the advantage of a uniquely designed reversible rubber head that can be attached to the mixer in two orientations. For the vortexing of single tubes, the cupped surface would generally be preferred. However, for applications requiring a flat/dimpled surface for mixing uniquely shaped vessels (or a handful of multiple test-tubes), the head can easily be flipped over and reattached in reverse orientation.Like the original BenchMixer, the drive system is balanced with Q-Drive™ technology, providing a smooth vortexing action, while minimizing noise and excessive vibration. This results in quieter, more efficient and longer lasting operation. With a maximum speed up to 3,200 rpm, the mixer provides an instant vortex of even the largest sample sizes, including full 50ml tubes.SpecificationSpeed:200 to 3200 rpmOperating modes:Touch or continuousOrbit:3mmOperating Temp. Range:+4 to +45°CDimensions: (w x d x h)5.2 x 6.7 x 6.7 in. / 13.2 x 17 x 17 cmWeight:8.4 lbs (3.8 kg)Electrical:115V, 60Hz or 230V, 50Hz, 180WWarranty:2 Years Request A QuoteItem:Description:BV1003*BenchMixer V2 Vortex Mixer with reversible topBV1000-COMBOOptional combination head for one microplate & microtubes (38x1.5 & 28x0.5)BV1000-H15Optional attachment, 12 x 1.5ml, horizontalBV1000-H150Optional attachment for 4 x 15ml, horizontalBV1000-H500Optional attachment for 2 x 50ml, horizontalBV1003-150Optional attachment for 12 x 15mlBV1003-500Optional attachment for 5 x 50ml * 115V with US Plug. For 230V with EU Plug, please add -E). Alat Laboratorium Umum