AIMH021 DC current sensor by Aim Dynamics


All AIMH devices require Active Power

All AIMH devices require Active Power

Product Description

The AIMH021 DC current sensor measures up to ± 200Adc and outputs a corresponding ± 5Vdc signal or a 4-20mA signal, depending on the model chosen.

If you’re looking for a similar product to measure higher amperage, check out our AIMH040 model.

The AIMH021 DC current sensor has a 21mm opening and has been factory calibrated so that there is no offset noise voltage to compensate for.  Although it is generally used to measure DC current, it can also be used to measure AC current, making it perfect for low frequency monitoring.  The AIMH021 is powered by a ±15 Vdc power supply (max consumption 25mA).  The AIMH021 is 1% accurate.

You can purchase a ±15 Vdc power supply here.


• Input: 50A, 100A or 200A (DC or AC)
• Output: ± 0-5 Vdc or 4-20 mA
• +/- 1 % accuracy
• Unidirectional input available
• Operating temperature range:-10°C to 85°C
• +/-15Vdc power supply required. Max consumption=25mA
• No offset to worry about

Data Sheet

Data Sheet

Additional information

Amp Rating / Output

50A -> ±5Vdc (in stock), 100A -> ±5Vdc (in stock), 200A -> ±5Vdc (in stock), 50A->4-20mA unidirectional (2 days), 100A->4-20mA unidirectional (3 days), 200A->4-20mA unidirectional (3 days), 50A->4-20mA bidirectional (4 wks), 100A->4-20mA bidirectional (4 wks), 200A->4-20mA bidirectional (4 wks)