The 27 II digital multimeter define a new standard for operating in harsh conditions with the features and accuracy to troubleshoot most electrical problems. Both meters have IP 67 rating, MSHA approvals , extended operating temperature range of 5 degree F to 131 degree F, -40 degree C for up to 20 minutes and 95 % humidity, and have been designed and tested to withstand a 3 m (10 ft) drop. Measure up to 1000 V ac and dc. Measure up to 10 A. 10,000 capacitance range. Frequency to 200 kHz. Extended ac voltage bandwidth 40 Hz to 30 kHz.