DC Current Sensors, ranges 50,100 and 150 amps DC.  No external power required. Connects directly to any recorder or data acquisition system that has a 0-5vdc input. Accuracy +/- 1% of full scale at 25 deg C.

• Single 5vdc supply, consumes less than 10ma
• 3kV_RMS Isolation
• Very low internal resistance (0.25 milliohm)
• Bi-directional operation
• Rugged epoxy encapsulated housing

Budget Price £95

Watt Hour AC Current Sensors, ranges 100, 200, 400 amps, with voltage ranges 115, 208, 230, 277 VAC. Single phase, frequency range 48 - 62 Hz, accuracy +/-1% of full scale. Output 1 pulse per 10 watt hours, self powered.

Budget Price £192