The Digital Insulation Resistance Tester has safe configuration and improved electro-circuit. It is one new item with more functions, higher precision, and easier operation. It" s also one quake-proof, dust-proof and damp-proof tester for outdoor use.<br> Features:<br> Capability: Can do the test at several test voltages: 100V, 250V, 500V, 1000V; voltage below AC750V can be tested; with resistance measurement ranging from 1 M Ohm to 20 G Ohm .<br> Practical Function: Auto switch the range when measuring resistance; data hold feature; low battery reminder and high voltage indicator.<br> Large LCD Display: Equipped with a 3 1/2 digits big LCD display with max value 1999, easy to read.<br> Safe to Use: Rugged housing is dust-proof and damp-proof; strong load capacity with output short-circuit current about 1.0mA; protective circuit prevents damage from voltage shock.<br> User-Friendly: Turn the rotary switch to select voltage; comes with test leads, alligator clips, and a kickstand on the back.<br> Wide Application: This tester can be applied in all kinds of electric equipment and insulation materials such as transformer, electromotor, cable, switch, appliance, etc.<br> Specifications:<br> Material: ABS<br> Color: Red<br> Size of LCD: 68*44mm / 2.67*1.73in<br> Power Supply: 6 * 1.5V AA battery (Not Included)<br> Working Temperature: 0~40 celsius<br> Relative Humidity: less than 80percent<br> Safety Level: CAT-II 1000V and CAT-III 600V<br> Item Size: 205 * 90 * 55mm / 8.07 * 3.54 * 2.16in<br> Item Weight: 450g / 15.87oz<br> Package Weight: 774g / 27.3oz<br> Package Size: 23.2 * 16.2 * 7cm / 9.13 * 6.37 * 2.75in<br> Technique Index:<br> Test rated voltage: 100V, 250V, 500V, 1000V<br> Output voltage: 90percent ~110percent of the test rated voltage<br> Resistance?<br> ? Measurement range: 1 M Ohm ~ 20 G Ohm<br> ? Resolution: 0.01 M Ohm<br> ? Accuracy:<br> ? 1 M Ohm ~ 200 M Ohm : +/-(3percent of the reading + 5 significant digits)<br> ? 200 M Ohm ~ 10 G Ohm : +/-(5percent of the reading + 5 significant digits)<br> ? 10 G Ohm ~ 20 G Ohm : +/-(10percent of the reading + 5 significant digits)<br> AC voltage<br> ? Measurement range: 1V ~ 750V<br> ? Resolution: 1V<br> ? Accuracy: +/-(2percent of the reading + 5 significant digits)<br> Frequency Response: 40Hz ~ 400Hz<br> Packing List:<br> 1 * Insulation Tester<br> 1 * Storage Bag<br> 1 * Test Leads(pair)<br> 1 * Probe Clips(pair)<br> 1 * User Manual (English)<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store