Used Scientific Products Temp-Blok Module Heater model H2025-1.
Tested for power and heating and unit is operational. The low temperature adjust is missing a know and the adjustment does not work (does not rotate). No extensive testing performed - temp-blok gets quite warm and heats fairly quickly.
Heating area is 3.875" x 3" (98 mm x 76 mm) by 1.5" deep (38 mm). Suited for test tube/culture tube blocks with dimensions of 3.75" x 2.875" (95 mm x 73 mm).
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