Cheap ($33 USD), K-type thermocouple (apparently this can be changed in the “secret menu”)
Available from Sure Electronics. Sure sells on eBay too.
The unit I received has two control outputs, SSR (OUT1) and RELAY (OUT2) and is labeled:
CODE | FK02-VM*AN-NN ZK-1018 |
RANGE | 0-400C |
INPUT | K |
OUTPUT | SSR RELAY |
Examples of this controller in use:
The available documentation for this controller is poor. By playing with the configuration settings, I have discovered some useful but undocumented features. If anyone knows of more hidden features, please add them here.
Note: These settings apply to the FK02-VM*AN-NN. I haven't tested them on any other CD101 variants.
These settings can be accessed by holding SET and < at the same time for 3s, then setting Cod to 0000. More information is available in the 2nd user manual given above.
Photos of CD101 disassembly thanks to Keith Neufeld (with permission) and originally appeared here.