Extech EX540-NIST 12 Function True RMS Industrial MultiMeter/Datalogger datalogs up to 9,999 readings with wireless USB interface (915MHz) capability to transmit readings to your PC in real time. This True RMS Industrial MultiMeter/Datalogger features True RMS measurements for accurate AC voltage and current measurements.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
