Grant Instruments QBD4 Digital Dry Block Heater, Ambient +5 to 130°C holds 4 Interchangeable Block, 120 or 230V

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• = standard
Dimensions (h x d x w)
120 x 390 x 200mm
Temperature range @37°C
Ambient +5 to 130°C
Stability @37°C
Uniformity within the block @37°C
Uniformity across similar blocks @37°C
Temperature display

Display resolution
Heat up time 25ºC to 100ºC
20 minutes
Three programmable temperature/ time segments plus end-of-program segments
Reaction timer, with audible buzzer
1 to 999 minutes
Function timer for delay of heater start-up/switch-off
Up to 72 hours
Off-set adjustment

Two-point calibration of internal and external probes

High/low temperature alarms, settable to within 0.5ºC of set temperature

Fault indication display

Extraction tool for easy and safe block removal

Thermal fuse
Heater power - 230V
Heater power - 120V
Supply voltage
120 or 230V
    • 20% off
    £820.00, save £164.00
  • £656.00

A versatile general purpose system with two removable/interchangeable blocks and a comprehensive specification to suit most dry block heating applications in the laboratory.

  • Temperature range ambient +5ºC to 130ºC, with rapid heat-up time
  • Stability: ±0.1ºC
  • Uniformity: ±0.1ºC
  • Digital temperature control for optimal precision
  • Range of convenient features including alarms, single and dual point calibration, programmed start/stop, ‘offset’ for known sample temperature variation and choice of external or internal probes
  • External probe available for accurate in-sample or in-block temperature control
  • Includes block removal tool for easy and safe removal of blocks.


A source of precision temperature control for general, routing applications and sensitive analytical procedures including enzyme digestions, enzyme activity studies and nucleid acid hybridisations.

* Offer valid on new orders only. UK Only. Offer can be claimed through an official quotation only. Offer cannot be claimed in conjunction with any other promotion. Standard delivery terms and conditions apply. Offer only available on products stated in the promotion. For further information, contact Grant Instruments or your regional sales manager.


  • High power heater for fast heat-up – 25ºC to 100ºC in only 15 minutes.
  • Simple-to-use rotor plus two keys provide access to the interactive interface for fast, accurate set-up and use
  • Clear digital display – easy to read from a distance for instant reassurance
  • Convenient timer facility, with audible buzzer, for reaction timing and function timing, e.g. delayed heater switch-on/turn-off
  • Wide range of interchangeable blocks enables you to mix and match sample tubes as desired – extraction tool supplied as standard for easy and safe removal of blocks.
  • Optional safety cover – protects samples from contamination and users from accidental contact with hot blocks
  • Overtemperature cut-out protects your samples and your workplace
  • High quality, robust construction in streamlined coolwall aluminium and chemical-resistant plastic – durable in demanding environments
  • Compact footprint to optimise use of benchspace
  • Options include blocks for 0.2 ml tubes, strips and 96-well microtitre plates used in molecular biology and biotechnology applications (QBD2 & QBH2 only)
  • Three programmable temperature/time segments plus end-of program segments (QBH2 only)

    • SKU
    • Commodity Codes
  • Manufacturer
    Grant Instruments (Cambridge) Ltd
  • Country of Origin
    United Kingdom
  • Dry Block Heaters
    • Number of blocks
    • Heat output
      150 W
    • Heating temperature range
      ambient + 5 to 130
Interchangeable blocksExtraction tool supplied as standard

Part NoDescription
QB-0Plain block without holes
QB-10For 24 x ø 10mm test tubes, 50mm hole depth
QB-12For 24 x ø12mm test tubes, 50mm hole depth
QB-13For 12 x ø13mm test tubes, 50mm hole depth
QB-16For 12 x ø16mm test tubes, 50mm hole depth
QB-17HFor 10 x Falcon tubes tall 17mm ø test tubes, 75mm hole depth
QB-18For 12 x ø18mm test tubes, 50mm hole depth
QB-24For 5 x ø24mm test tubes and universal bottles, 50mm hole depth
QB-50For 4 x 50ml centrifuge test tubes, glass universals, 50mm hole depth ø29mm
QB-HFor 56 x 0.2ml microtube, 14mm hole depth, ø6.5mm
QB-E0For 24 x 0.5ml microtube, 30mm hole depth, ø8mm
QB-E1For 24 x 1.5ml microtube, 35mm hole depth, ø10.8mm
QB-E2For 24 x 2.0ml microtube, 35mm hole depth, ø11mm
QB-E5For 12 x 5.0ml microtube, 53.5mm hole depth, ø16.7mm
QB-DNFor 12 x 5.0ml microtube, 53.5mm hole depth, ø16.7mm
Accessory Notes: 

Custom blocks available - please email for further information

QBEP probeExternal Temperature Probes

Part NoDescription
QBEPStandard probe for in-sample or in-block temperature control; encased in stainless steel sheath, ø3mm x 30mm long, with 350mm of cable.
QBEP-WMShort-form probe for in-sample or in-block temperature control; encased in stainless steel sheath, ø3mm x 14mm long, with 350mm of cable.
QBL safety coverMicroplate BlocksFor molecular biology and biotechnology applications

Part NoDescription
QDP-H96 holes in microplate configuration for 0.2ml microplates, strips or individual tubes. Uniformity ± 0.3ºC within tubes across the block; 6.2mm ø holes, 14mm hole depth.
QDP-FLUniversal block for standard 96-well plates (u-well, v-well, flat bottom, high temperature). Uniformity ± 0.50ºC between wells; supplied with hinged, double layer lid to create an insulated incubation chamber.
Accessory Notes: 

Double-size blocks 140 x 100 x 75mm supplied with additional extraction tool

QBL safety coverSafety coverMade from tough clear acrylic for maximum visibility whilst preventing accidental touching of a hot block or contamination of samples from splashes.

Part NoDescription
QBL2For QBD2 and QBH2
Accessory Notes: 

Clearance height 85cm. Not required with QDP-FL Microtiter blocks.

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