The Extech SDL900 is an AC/DC Magnetic Meter and Datalogger with automatic temperature compensation. The Extech SDL900 utilizes Hall effect sensor. This meter features an adjustable data sampling rate from 1 to 3600 seconds.
Reference: AM09459926AA
Brand: Amprobe
Industrial High Voltage Insulation Resistance Tester, 5000V DC Test Voltage, 1 TΩ
AC/DC Magnetic Field Meter/Datalogger