Digital Water Bath

Unique Feature:

Programmable timer, up to 99hrs, 59mins.

Visual Alarm Setting

Boekel "Hot Tubs" - General Purpose Water Baths


The Boekel line of General Purpose Water Baths offers a variety of sizes to meet all of your needs and is ideal for general lab applications. The space saving design allows for the most efficient use of your bench space and the PID Controller makes for easy temperature selection, rapid heat-up and excellent stability.

In addition, this General Purpose Water Bath line can also be used as a Boiling Bath by simply setting the temperature into a boiling mode. With this convenient feature, you no longer need to purchase a separate, single function Boiling Bath.

A stainless steel gabled lid is required and sold separately, when this unit is placed in the boiling mode. All units are
supplied with a polycarbonate lid.



  • General purpose water baths offer excellent performance and are ideal for general lab applications.

  • The special "boiling mode" is a convenient feature for melting agar and other applications requiring boiling temperature.

  • These water baths can also be used as a boiling water bath. User simply sets temperature into ??boiling mode??.
    **Note: Stainless steel gabled covers are required for use
    when water bath is placed in boiling mode.

  • Programmable timer, up to 99hrs, 59mins. Bath will stop heating when timed mode is completed.

  • PID Controller for Easy Temperature Selection, Rapid Heat-Up and Excellent Stability (+/- 0.1?XC).

  • 3 point factory programmed temperature calibration for accurate temperature control throughout the operating temperature range.

  • Temperature set in 0.1?XC increments up to 100.0?XC.

  • Seamless, passivated stainless steel tank; includes stainless steel diffuser tray/shelf.

  • Recessed control panel - protects against spills

  • Polycarbonate lid included with purchase of water bath.

  • Large LED display can be clearly seen from a distance

  • Adjustable over temperature safety cutout

  • Space saving design







290100 (115V)
290100-2 (230V)

290200 (115V)
290200-2 (230V)

290300 (115V)
290300-2 (230V)

Product Dimensions
W x D x H

33.66cm x 20.96cm x 25cm
?? x 8.25?? x 9.88??

33.66cm x 38.43cm x 24.46cm
?? x 15.13?? x 9.63??

33.66cm x 56.21cm x 29.54cm
?? x 22.13?? x 11.63??

Bath Height w/ Polycarb Cover:

39.07cm / 15.38??

39.37cm / 15.5??

43.50cm / 17.13??

Tank Dimensions

30.0cm x 15.0cm x 14.0cm
11 3/4
?? x 6?? x 5 1/2??

30.0cm x 32.5cm x 17.0cm
11 3/4
?? x 12 3/4" x 5 3/4"

30.0cm x 50.5cm x 19.0cm
11 3/4
?? x 20?? x 7 1/2??


Timer ??ON??, timer is settable up to 99hrs. 59min. or ??OFF?? mode to
operate bath without timer.

Temperature Range

ambient +5?XC to 100?XC* or Boiling Mode

Temp. Setting Range

0?XC to 100?XC in 0.1?XC increments or Boiling Mode


+/- 0.1?XC

+/- 0.1?XC

+/- 0.1?XC

Temp. Setting Display

digital/four digit LED

digital/four digit LED

digital/four digit LED

Display Resolution




Net Weight:

3.3 kg (7 1/4 lbs)

6.3 kg (13 3/4 lbs)

10.7 kg (23 3/4 lbs)

Shipping Weight:

6.0 kg (13 1/4 lbs)

9.0 kg (19 3/4 lbs)

13.5 kg (29 3/4 lbs)


115VAC; 50/60Hz**
230VAC; 50/60Hz (CE)

115VAC; 50/60Hz**
230VAC; 50/60Hz (CE)

115VAC; 50/60Hz**
230VAC; 50/60Hz (CE)

* A lid or layer of polypropylene spheres must be used when operating at 60?XC or above
** Unit conforms to UL 61010A-1 and CSA C22.2 No 1010



Stainless Steel Gabled Covers
Gabled Covers direct condensed water to edge and back into the tank.
**NOTE: Stainless steel gabled covers are required for use when the water bath is placed in boiling mode.


For Water Bath Model

S.S. Lid Catalog #

Lid Dimensions (cm)

Net Wt.

Shipping Wt.



17.0cm x 32.0cm x 9.2cm

1 kg (2 1/4 lb)

2 kg (4 1/2 lb)



34.5cm x 32.0cm x 9.2cm

2 kg (4 1/2 lb)

3.2 kg (7 lb)



52.0cm x 32.0cm x 9.2cm

2.5 kg (5 1/2 lb)

3.6 kg (8 lb)


Polypropylene Spheres
Polypropylene spheres are an alternative to a lid; they minimize evaporation and heat loss, allow easy access to vessels in the bath, and they are particularly useful for tall vessels.

Water Bath Model No.

No. of packs of Polypropylene Spheres (300/Pack) Catalog No. 290155

290100 / 290100-2

1 x Pack

290200 / 290200-2

1 x Pack

290300 / 290300-2

2 x Packs





Concentric Ring Water Baths


Boekel Concentric Ring Water Baths are ideal whenever constant, gentle heat is required for applications such as:

Solvent extraction
Melting solids
Evaporating liquids
Analysis of total dissolved solids


Design Features:

  • Four or eight openings

  • Heavy duty 3" legs permanently attached to the body

  • Two power settings, one for rapid heat up and one for reduced power consumption

  • Tubular heater, hydraulic thermostat

  • No wiring or assembly required

  • Hand crafted from stainless steel to ensure a long service life

  • Supplied with water level regulator and ring sets

  • Operating temperature range of 40?XC to 100?XC

  • Comes complete and ready to use. No set up necessary, add water and plug in.




Models 1493-2

Models 1494-2


14 liters

28 liters


36 cm x 36 cm x 13 cm deep (20 cm high)
14" x 14" x 5" deep (8" high)

71 cm x 36 cm x 13 cm deep (20 cm high)
28" x 14" x 5" deep (8" high)



4: Each 13 cm (5") diameter

8: Six x 13 cm (5") diameter
Two x 15cm (6") diameter


Heat Type:







4.5 kg. (10 lbs.)

7.3 kg. (16 lbs.)




Excellent Technology Co.
Hong Kong: Tel. (852) 2691 3821    Fax. (852) 2900 2980

China: Tel. (86) 150 1799 2655   Fax. (86) 755 3360 9662