Fluke 1503 Insulation Resistance Tester handles all the basic insulation testing needs

The Fluke 1503 is a great choice for basic residential and commercial electrical insulation testing. This rugged, compact tool fits in the palm of your hand. The 1503 is the same form factor as the Fluke 1507 but with a few less features. You can count on it to handle the most common tests at a most affordable price. Additional features, like the remote probe, reduce the time needed to perform repetitive testing.

Other useful capabilities:

• Measures AC/DC voltage from 0.1 V to 600 V
• Includes auto-discharge of capacitive voltage for added user protection
• Provides lo-ohms earth-bond continuity (200 mA)
• Simplifies repetitive or hard-to-reach testing with the remote test probe
• Saves battery power with auto power off
• Presents results on a large, backlit display
• Features CAT IV 600 V overvoltage category rating
• Comes with remote probe, test leads, test probes, alligator clips, and one-year warranty
• Accepts optional Fluke TPAK magnetic hanging system to free your hands for other work
• Runs on four AA alkaline batteries (NEDA 15 A or IEC LR6) for at least 1000 insulation tests

• Specifications: Fluke 1503 Insulation Resistance Meter

  AC/DC Voltage Measurement
  Accuracy	Range	600.0 V
  	Resolution	0.1 V
  	50 Hz to 400 Hz ±(% of Rdg + Digits)	±(2% + 3)
  Input impedance	3 MΩ (nominal), < 100 pF
  Common mode rejection ratio (1 kΩ unbalanced)	> 60 dB at DC, 50 or 60 Hz
  Overload protection	600 V rms or DC
  Earth Bond Resistance Measurement
  Range/Resolution	20.00 Ω	0.01 Ω
  	200.0 Ω	0.1 Ω
  	2000 Ω	1.0 Ω
  	20.00 kΩ	0.01 kΩ
  Accuracy	±(1.5% + 3)
  Overload protection	2 V rms or DC
  Open circuit test voltage	> 4.0 V, < 8 V
  Short circuit current	> 200.0 mA
  Insulation Specifications
  Measurement range	0.01 MΩ to 2000 MΩ
  Test voltage	500 V, 1000 V
  Test voltage accuracy	+ 20%, - 0%
  Short circuit current	1 mA nominal
  Auto discharge	Discharge time < 0.5 second for C = 1 µF or less
  Live circuit indicator	Inhibit test if terminal voltage > 30 V prior to initialization of test
  Maximum capacitive load	Operable with up to 1 µF load
  Measure accuracy
  	500 V	±(1.5% + 5)
  	1000 V	±(1.5% + 5) to 2000 MΩ, ±(10% + 3) above 2000 MΩ
  General Specifications
  Maximum voltage applied to any terminal:	600 V AC rms or DC
  Storage temperature	-40°C to 60°C (-40°F to 140°F)
  Operating temperature	-20°C to 55°C (-4°F to 131°F)
  Temperature coefficient	0.05 x (specified accuracy) per °C for temperatures < 18°C or > 28°C (< 64°F or > 82°F)
  Relative humidity
  	0% to 95% @ 10°C to 30°C (50°F to 86°F)
  	0% to 75% @ 30°C to 40°C (86°F to 104°F)
  	0% to 40% @ 40°C to 55°C (104°F to 131°F)
  Vibration	Random, 2 g, 5-500 Hz per MIL-PRF-28800F, Class 2 instrument
  Shock	1 meter drop per IEC 61010-1 2nd Edition (1 meter drop test, six sides, oak floor)
  Electromagnetic compatibility	In an RF field of 3 V/M, accuracy = specified accuracy (EN 61326-1:1997)
  Safety	Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 NO. 61010-1-04, and IEC/EN 61010-1 2nd Edition for measurement category IV 600 V (CAT IV)
  Certifications	CSA per standard CSA/CAN C22.2 No. 61010.1-04; TUV per standard IEC/EN 61010-1 2nd Edition
  Batteries	Four AA batteries (NEDA 15A or IEC LR6)
  Battery llife	Insulation test use:	Tester can perform at least 1000 insulation tests with fresh alkaline batteries at room temperature. These are standard tests of 1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25 seconds off.
  	Resistance measurements:	Tester can perform at least 2500 earth bond resistance measurements with fresh alkaline batteries at room temperature. These are standard tests of 1 Ω with a duty cycle of 5 seconds on and 25 seconds off.
  Size (H x W x L)	5.0 x 10.0 x 20.3 cm (1.97 x 3.94 x 8.00 in)
  Weight	550 g (1.2 lb)