Chemetronics Model 501 Spot Fire Lowecator Heat Detector Vintage Alarm Sensor. Unused, no box, rare NOS item

Writing on base: ONLY 190° F.T. - 3.0A 6-125 VAC - 1.0A 6-28VDC - 0.3A 125 VDC - 0.1A  250VDC

Size: 3 1/4 Dia x 2 1/4 in

Weight: 3.25 oz