BW-20G Heating Baths (General)

BW-20G Heating Baths (General)


Outstanding temperature control water baths for diverse applications.
Microprocessor PID controller guarantees all BW-G Models precise temperature control. In addition, the built-in digital timer and programming functions are ideal for critical research, quality control, and regulatory tests. 

For more information or to place an offline order call 1-800-745-2710


We Accept Trade-ins!

Don’t forget to tell us about any unused

instruments taking up space in your lab.


Operating Features 

  • +5 above room temperature to 100 .
  • Microprocessor PID control / Automatic tuning / Calibration.
  • Digital timer for delayed ON / OFF. (from 1 min to 99 hr 59 min)
  • Protection aga inst over-temperature and low fluid level.
  • Convenient memory function of up to three frequently used temperature settings.
  • Digital LED display. (0.1 resolution)
  • Splash-proof keypad.

Constructional Features

  • Corrosion-resistant stainless steel construction of all wetted parts allowing other bath fluids as well as water and silicone fluids.
  • Low-profile reservoir design with easy-to-use digital controller with dual LED displays.
  • Protection against low fluid level and dry-running with audi-ble and visual alarms.
  • Automatic shut down of the heater following the alarms.
  • Isolated design of heater, and sensor by a baffle plate to pro-tect users and samples against direct contact.
Model BW-05G BW-10G BW-20G
Bath Volume (L / cu ft) 5 / 0.2 10 / 0.4 20 / 0.7
Working Temperature Range
( / )
Amb. +5 to 100 / Amb. +9 to 212
Temperature Stability 1)
( / )
0.2 / 0.36
Dimension Bath Opening / Depth
(W L, D) (mm / inch)
231 150, 160 / 9.1 5.9, 6.3 285 211, 180 / 11.2 8.3, 7.1 345 290, 200 / 13.6 11.4, 7.9
/ with Gable Cover
(W L H) (mm / inch)
355 260 334
/ 14 10.2 13.1
410 311 354
/ 16.1 12.2 14
471 390 374
/ 18.5 15.4 14.7
Net Weight (kg / lbs) 10 / 22 14 / 31 18 / 40
Electrical Requirements (230V, 50 / 60Hz) 3A 4.4A 8.7A
Cat. No. AAH41405K AAH41415K AAH41425K
Electrical Requirements (120V, 50 / 60Hz) 5.8A 8.3A 8.3A
Cat. No. AAH41406U AAH41416U AAH41426U
GMI Certified Service means:
  • Healthy operation of your instrument
  • Helping to ensure the quality of your results
  • Lowering cost of ownership through multilple service agreement options
  • Prolonging instrument serviceable life
  • Safe Operation of your equipment
  • Minimizing downtime increases productivity and minimizes revenue loss
  • Instrument Evaluation Services
  • Contract Refurbishing
  • Relocation Services
  • Equipment Finder Service
  • Training Courses
  • Depot Repair
  • Instrument Decommisioning & Disposal Services
Service Agreements

Preventative Maintenance Visit
('tune up', including cleaning, lubrication, and adjustments)
1 Service Visit
Service Visit 1PM
1 Service Visit
1 2
Parts and Labor    

Discounted Parts
Discounted Labor (As needed)

Lab Equipment Replacement Parts & Accessories

Click button to view parts which are available for this instruments and instruments like it in our brand new online parts shop.

We also carry instruments parts for the following other instruments categories.


Your trusted source for new, factory clearance & certified pre-owned lab instruments since 1995.

  • We routinely save discerning laboratories 30-80% with our recertified pre-owned and factory clearance instrument offerings.

  • Quality? ISO 9001:2008 certified means we remove 100% of the risk in buying ‘used’ laboratory equipment.

  • Warranties from 90 days to a year as well as multi-year service agreements are available.

GMI is an ISO 9001:2008 certified company - proof that your instruments pass through a rigorous re-certification process to ensure that it arrives at your laboratory defect-free and in full working order.
We are neither an auction company nor an instrumentation broker. GMI employs our own factory-trained engineers to ensure full control of this process.
Unlike small-time businesses and brokers, GMI goes beyond offering money-back promises. We offer real product warranties.
Apart from our meticulous inspection processes, GMI’s available warranties and multi-year service agreements guarantee customer satisfaction - no need to go through frustrating and time-consuming product returns!
Additionally, all items are thoroughly cleaned and professionally packaged/crated with care to insure they arrive in your lab ready for use.