A new generation of true RMS double impedance high performance digital clamp meter, which integrates multiple functions, makes your work easier, more efficient and safer. Features: Versatile Clamp Meter --- This clamp multimeter with multiple measure and test function; Use as AC/DC voltmeter, AC ampmeter, and can also measure resistance, buzzer and diode test. Safety & Over Load conservation --- Clamp meter with tong head clamp for convenient one hand operation, and not need to touch any wire directly, very safe for work. Also with over load protect help prolong the meters service time. Shows "OL" on the LCD If Overrange. Easy to Use and Read --- Mini and portable handheld multimeter easy to carry on and use. High resolution, large backlit LCD screen cooperate with data hold function make date reading more easy. Power Saving --- This multimeter with auto shut down function if not detect any thing or do not have any operation, it can help save energy and prolong battery using time. And low power alarm can remind for battery change, not affaried for out of power in work. What Will You Get: 1 * Digital Clamp Meter, 2 * Test Leads, 1 * Temperature Probe(HT207B or HT207D Only), User Manual(English), 1 * Storage Bag. LCD Display with Backlight, Convenient to Operate and Read. Specifications: Model: HT207A / HT207B / HT207D (Optional) DC Voltage Range: HT207A: 200mV/2V/20V/200V/600V HT207B or HT207D: 400mV/4V/40V/400V/600V DC Voltage Max Resolution: 0.1mV AC Voltage Range: HT207A: 2V/20V/200V/600V HT207B or HT207D: 4V/40V/400V/600V AC Voltage Max Resolution: 0.001V Resistance Range: HT207A: 200/2K/20K/200K/2M/20M HT207B or HT207D: 400/4K/40K/400K/4M/40M Resistance Max Resolution: 0.1 AC Current Range: HT207A: 2A/20A/200A/400A HT207B: 4A/40A/400A HT207D: 40A/400A AC Current Max Resolution: 0.001A; 0.01A Capacitance Range: HT207A: 2nF/20nF/200nF/2uF/20uF/200uF/2mF HT207B or HT207D: 10nF/100nF/1000nF/10uF/100uF/1000uF/10mF/100mF Capacitance Max Resolution: 0.001nF Frequency Range(HT207B or HT207D Only): 10Hz/100Hz/1000Hz/10kHz/100kHz/1000kHz/10MHz Frequency Max Resolution: 0.001Hz Temperature Measurement Range(HT207B or HT207D Only): -201000 Temperature Max Resolution: 1 Environment condition of using: CAT.III 600V Pollution level: 2 Altitude: < 2000m Working environment temperature and humidity: 0~40C (