| Specifications: | Amprobe 37XR-A Digital Multimeter |
| DC Voltage | 1000 mV, 10 V, 100 V, 1000 V +/-(0.1 % rdg + 5 dgt) |
| AAC Voltage True RMS (45 Hz to 2 kHz) Voltage | 1000 mV, 10 V, 100 V (45 Hz to 500 Hz) +/-(1.2 % rdg + 10 dgts) 1000 mV, 10 V, 100 V (500 Hz to 2 kHz) +/-(2.0 % rdg + 10 dgts) 750 V (45 Hz to 1 kHz) +/-(2.0 % rdg + 10 dgts) |
| AC coupled True RMS | specified from 5 % to 100 % of range |
| Input Impedance | 10 MW |
| Voltage Resolution | 100 μV |
| DC Current | 100 μA +/-(0.5 % rdg + 10 dgt) 1000 μA, 10 mA, 100 mA, 400 mA +/-(0.5 % rdg + 5 dgts) 10 A +/-(1.5 % rdg + 10 dgt) |
| AC Current True RMS (45 Hz to 1 kHz) | 100μA, 1000 μA, 10 mA, 100 mA +/-(1.5 % rdg + 10 dgts) 400 mA +/-(2.0 % rdg + 10 dgts) 10 A +/-(2.5 % rdg + 10 dgts) |
| Current Resolution | 0.01 μA |
| Resistance | 1000 W, 10 kW, 100 kW, 1000 kW +/-(0.5 % rdg + 8 dgts) 10 MW +/-(1.0 % rdg + 10 dgts) 40 MW +/-(2.0 % rdg + 10 dgts) |
| Resistance Resolution | 100 mW |
| Capacitance | 40 nF, 400 μF +/-(3.0 % rdg + 10 dgts) 400 nF, 4 μF, 40 μF +/-(3.0 % rdg + 5 dgts) |
| Capacitance Resolution | 0.01 nF |
| Inductance (for values of Q ² 7) | 4 mH, 40 mH, 400 mH, 4 H, 40 H +/-(5.0 % rdg + 30 dgts) |
| Inductance Resolution | 1 μH |
| Frequency | 100 Hz, 1000 Hz, 10 kHz, 100 kHz, 1000 kHz, 10 MHz +/-(0.1% rdg + 5 dgts) |
| Frequency Resolution | 0.01 Hz |
| Duty Cycle | 0 to 90 % 5 V logic: +/-(2.0% rdg + 20 dgts) |
| Duty Cycle Resolution | 0.01 % |
| Frequency Range | 0 % to 10 %: 40 Hz to 990 Hz 10 % to 90 %: 40 Hz to 20 kHz |
| Logic Type | TTL, CMOS |
| Thresholds | Logic 1 (Hi) TTL 2.8 V +/- 0.8 V, CMOS 4 V +/- 1 V Logic 0 (Lo) TTL 0.8 V +/- 0.5 V, CMOS 2 V +/- 0.5 V |
| Logic Test Frequency Response | 20 MHz |
| dBm | -13 dBm to +50 dBm (45 Hz to 5 kHz) +/-(0.7 dB + 8 dgts) -13 dBm to +50 dBm (5 kHz to 10 kHz) +/-(2.5 dB + 8 dgts) |
| dBm Resolution | 0.01 dBm |
| Continuity Audible Indication | < 40 W |
| Response Time | 100 ms |
| Diode Test Current | 1.0 mA (approximate) |
| Open Circuit Voltage | 3.0 V dc typical |
| Peak AC Volts Accuracy | 100 V, 750 V +/-(3.0 + 200 dgts) 1000 mV, 10 V unspecified |
| AC Current | 1000 μA, 10 mA, 100 mA, 400 mA, 10 A +/-(3.0 + 200 dgts) 100 μA unspecified |
| Overload Protection AC/DC Voltage | 1000 V dc or 750 V ac rms |
| AC/DC Current | μA/mA input: F0.5 A /1000 V fast-blow ceramic 6.3 mm x 32 mm 10 A input: F10 A /1000 V fast-blow ceramic 10 mm x 38 mm (10 A for 4 minutes maximum followed by a 12 minute cooling period) |
| Resistance, Continuity, Diode Test | All ranges: 1000 V dc or 750 V rms |
| Display (Autoranging) | 4-3/4 digit LCD, 10,000 counts with 41-segment analog bar graph |
| Display Update Rate | 2/sec, nominal |
| Power Battery | 9 V NEDA 1604, JIS 006P, IEC 6F22 |
| Battery Life | 150 hrs typical (alkaline) frequent use of backlight will decrease battery life |
| Operating Temperature | 0 to 45 Degrees C at < 70% R.H. |
| Storage Temperature | -20 to 60 Degrees C, 0 to 80 % R.H. with battery removed from meter |
| Temperature Coefficient | 0.1 x (specified accuracy) per Degree C (0 to 18 Degrees C, 28 to 45 Degrees C) |
| Altitude | 2000 m (6562 ft) |
| Dimensions | 195 mm x 92 mm x 60 mm (7.75 in x 3.55 in x 2.4 in) |
| Weight (without holster, including battery) | 450 g (1 lb) |
| Warranty (years): | 3 |
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
