Animal Temperature Heating Pad With PID Controller

7/16/2026 Update: HP-150 controller has been updated to HP-150B.

The HP-150 is a DC-powered heating plate with a digital precision PID temperature controller. This ultra-thin, low noise heating plate offers uniform heating, which allows researchers to maintain the animal's body at a specific temperature. This setup can also be used for other similar applications which require a constant, above ambient temperature. The power input of the controller is 12 VDC (AC-DC power adapter is included). This low voltage reduces electric noise generated from the heating current. The heating plate adapts state-of-the-art heat conducting technology that was originally developed for LED lighting. It demonstrates extreme uniform temperature distribution over the entire surface, while keeping the plate thin and the cost low.

The heating pads in different sizes are offered:
Option 1: Dimension: 250 x 150 mm (9.8 x 5.9"), rated as 36W / 12V DC. The 5A / 12V DC power adapter is included. . 
Option 2: Dimension: 140 x 80 mm (5.5 x 3.1"), rated as 24W / 12V DC. 3A  / 12V and 5A / 12V DC adapter options are offered.
(New) Option 3: Dimension: 300 x 150 mm (11.8 x 5.9"), rated as 48W / 12V DC. The 8A / 12V DC power adapter is included.
(New) Option 4: Dimension: 250 x 250 mm (9.8 x 9.8"), rated as 72W / 12V DC. The 10A / 12V DC power adapter is included.

The 250 x 150mm pad is on the bottom. The 140 x 80mm pad is on the top.

Specifications
Input voltage                          12 VDC
Output voltage                       12 VDC
Controller Mode                      PID, PI, PD or P
Output switching device         Built-in optically isolated solid state relay
Probe cable length                 1 m (40")
Temperature resolution          0.1°C
Temperature display range     0 - 100.0°C
Mini. Control Temperature      5°C  above ambient
Max. Control Temperature1     50.0°C (250 x 150 mm and 140 x 80 mm pads)
Max. Control Temperature2     65.0°C (300 x 150 mm and 250 x 250 mm pads)
Temperature accuracy            +/- 0.1°C (in 25-40°C range)
Controller Dimension              80 x 30 x 107 mm (3.1 x1.2 x 4.2")
Controller Weight                    290 g (0.63 lb)
Heating Pad Thickness          6.5 mm (0.26")
DC Power Adapter Rating      See sectiion above      
Warranty                                 one (1) year

Note: the lead time for this item is 1-2 business days. 

Click here to download instruction manual (HP-150B).

Click here to download instruction manual (HP-150, legacy).