Jenco Instruments 2-wire temperature transmitter.
* Brand: Jenco Instruments
* Model: 77AJ-300C
* Part Number: 77A/02/0000/+0300/CEL
* Thermocouple Type: J
* Temperature Range: 0 to 300°C / 32 to 572°F
* Power Supply: 12–24 VDC
* Type: 2-wire temperature transmitter