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                                                  | ST-2551   Insulation Testers Up To 1 kV (Digital)
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                                                  | FEATURES |  
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                                                  |  A LCD indicated instrument for Insulation (M Ohm), Continuity (Ohm) and AC Voltage. |  
                                                  |  Instant operation is possible with a push button. |  
                                                  |  In additon, for continuous measurement of M Ohm or ACV, a convenient timer is provided iwth automatic power off after three to five minutes to save the battery power. |  
                                                  |  LED (red) indication when testing insulation and continuity. |  
                                                  |  Use of a high efficiency and accurate DC-DC converter. |  
                                                  |  Auto ranging. |  
                                                  |  Most suitable for insulation resistance measurement of electrical household appliances, power line distribution and installation. |  
                                                  |  CAT II 600V. |  |  
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                                                  | SPECIFICATIONS |  
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                                                  | INSULATION RESISTANCE |  |  
                                                  | Test Voltage (DC V) | 250V/500V/1000V |  
                                                  | Output Voltage Open Circuit | + 10% |  
                                                  | Measuring Ranges (Auto) | 0-20/0-200/0-2000M Ohm |  
                                                  | Accuracy | 0-20M Ohm : +/- (1.5%rdg+2dgt), 0-200M Ohm : +/- (2.5%rdg+2dgt), 0-2000M Ohm : +/- (5%rdg+3dgt) |  
                                                  | CONTINUITY TEST RANGES |  |  
                                                  | Measuring Ranges | 20 Ohm/200 Ohm/2K Ohm |  
                                                  | Short Circuit Current | 15.5/11/2.7 mA |  
                                                  | Accuracy | 20 Ohm : +/- (2%rdg+4dgt), 200 Ohm : +/- (1.5%rdg+2dgt), 2K Ohm : +/- (1.5%rdg+2dgt) |  
                                                  | Buzzer Sounds Below | 8 Ohm/10 Ohm/40 Ohm |  
                                                  | AC VOLTAGE RANGE |  |  
                                                  | Range | 0-600V AC |  
                                                  | Accuracy | +/- (1.5%rdg+2dgt) |  
                                                  | GENERAL |  |  
                                                  | Dispaly | LCD 3-1/2 (2000 counts) |  
                                                  | Impedance | 10M Ohm |  
                                                  | Power Source | 1.5V (SUM-3) x 6 Type AA |  
                                                  | Dimensions | 163(L) x 100(W) x 50(D)mm |  
                                                  | Weight | Approx. 480g (battery included) |  
                                                  | Accessories | Test eads, heavy-duty case, instruction manual, batteries |  |  |