A new, ergonomic concept, shaped to fit your hand and to access tight spots easily. The series feature a large display with backlight so readings can be taken in virtually any lighting situation. Auto-shut-off maximizes battery life so the meter works when you need it. Features: Small body and jaws fit perfectly in your hand and into tight places Measures MIN/MAX capability Precise measurements with 2.0% basic accuracy True-RMS measurements Measures AC current to 999.9 A Measures DC current to 999.9 A Measures AC volts to 600 V Measures DC volts to 600 V Resistance measurement to 600.0 Ω Continuity for quick checking of shorts Handy 'Display Hold' button keeps measurements on the display Meter controls are positioned so current measurements can be done with one hand (index finger on clamp opening lever and thumb on rotary switch) In-rush current function:measures starting current for motors, lighting, etc. Auto shut-off maximizes battery life; Automatic low battery indicator Improved low current measurement accuracy from new microprocessor technology 337A Clamp Meter includes: Fluke 337A Digital Clamp Meter Coated instruction card Safety information sheet Soft carrying case TL75 test leads Two AA Alkaline batteries Specifications: Voltage DC Range: 0 - 600 V Accuracy: 1% ± 5 counts Voltage AC Range: 0 - 600 V Accuracy: 1% ± 5 counts (50 /60 Hz), 6% ± 5 counts (100-400 Hz) AC Response: True-rms Current DC Range: 0 – 999.9 A Accuracy: 2% ± 5 counts (50 - 60 Hz) Current AC Range: 0 – 999.9 A Accuracy: 2% ± 5 counts (10-100 Hz), 6% ± 5 counts (100 - 400 Hz) Crest Factor (50/60 Hz): 3 @ 500A, 2.5 @ 600A, 1.42@1000 A, add 2% for CF>2 AC Response: True-rms Resistance Range: 0 - 600.0 Ω, 6001 - 6000 Ω Accuracy: 1.5% ± 5 counts Continuity <= 30 Ω Inrush Current Integration Time: 100 ms Environmental Specifications: Operating Temperature -10ºC to 50ºC, -14ºF to 122ºF Storage Temperature -30ºC to 60ºC, -22ºF to 140ºF Operating Altitude 2,500 meters max, 6,500 ft max Temperature De-Rating Add 0.1 x specified accuracy for each ºC above 28ºC or below 18ºC (above 82.4°F or below 64.4°F) Safety Specifications: Safety IEC 1010-2-032, 600V CAT III Mechanical & General Specifications: Size 250mm x 80mm x 40mm (9.875" x 3.125" x 1.625") Weight 310 g Warranty Three years Battery Life Alkaline approx. 150 hrs continuous Automatic low battery indicator Display Hold Yes