Owon B35T+ Bluetooth Digital Multimeter

Owon B35T+ Key Features & Overview

The B35T+ is a True RMS, CAT III 1000V / CAT IV 600V safety-rated multimeter with built-in Bluetooth that connects to the Owon Smart Phone App (and other third-party apps) for live data logging, graphing, and remote viewing.

Detailed Technical Specifications

Safety Rating: CAT IV 600V, CAT III 1000V (Meets IEC 61010-1 standards)
Display: 6000-count backlit LCD
Bluetooth: BT 4.0 (BLE), range up to 10 meters (33 ft) unobstructed.
True RMS: Yes
Low Pass Filter (LPF): Yes, for accurate VFD/motor drive measurements.
Relative Mode: Yes
Data Hold: Yes
Max/Min/Average Recording: Yes (on meter and via app)
Battery: 3x AAA (1.5V) batteries
Dimensions: Approx. 175 x 85 x 45 mm
Weight: Approx. 350g (including batteries)

Measurement Ranges & Accuracy

*(Accuracy is typically given as ±(% of reading + % of range), at 23°C±5°C, <75% RH)*

1. DC Voltage (DC V)

• Range: 600.0mV, 6.000V, 60.00V, 600.0V, 1000V

• Accuracy: ±(0.5% + 3 digits)

• Input Impedance: 10MΩ

2. AC Voltage (True RMS) (AC V)

• Range: 600.0mV, 6.000V, 60.00V, 600.0V, 1000V

• Accuracy: ±(1.0% + 5 digits) (45Hz ~ 1kHz)

• Frequency Response: 45Hz ~ 1kHz (up to 10kHz with reduced accuracy)

3. DC Current (DC A)

• Range: 600.0µA, 6000µA, 60.00mA, 600.0mA, 10.00A

• Accuracy:

  • 600µA ~ 600mA ranges: ±(1.2% + 5 digits)

  • 10A range: ±(2.0% + 5 digits)

4. AC Current (True RMS) (AC A)

• Range: 600.0µA, 6000µA, 60.00mA, 600.0mA, 10.00A

• Accuracy:

  • 600µA ~ 600mA ranges: ±(1.8% + 5 digits) (45Hz ~ 1kHz)

  • 10A range: ±(3.0% + 5 digits) (45Hz ~ 1kHz)

5. Resistance (Ω)

• Range: 600.0Ω, 6.000kΩ, 60.00kΩ, 600.0kΩ, 6.000MΩ, 60.00MΩ

• Accuracy: ±(0.9% + 5 digits)

• Open Circuit Voltage: <0.45V

6. Capacitance (F)

• Range: 60.00nF, 600.0nF, 6.000µF, 60.00µF, 600.0µF, 6.000mF, 60.00mF

• Accuracy: ±(3.5% + 10 digits)

7. Frequency (Hz)

• Range: 10.00Hz, 100.0Hz, 1000Hz, 10.00kHz, 100.0kHz, 1.000MHz

• Accuracy: ±(0.5% + 5 digits)

• Input Sensitivity: >3V RMS (V, Ω ranges); >0.5V RMS (mV range)

8. Duty Cycle (%)

• Range: 0.1% ~ 99.9%

• Accuracy: ±(1.0% + 5 digits)

• Frequency Range: 10Hz ~ 100kHz

9. Diode Test

• Range: Displays forward voltage drop

• Test Current: ~0.5mA

• Open Circuit Voltage: ~2.4V

10. Continuity Beeper

• Range: <60Ω typically activates beeper

• Response Time: <150ms

• Open Circuit Voltage: <0.45V

11. Temperature (℃/℉)

• Range: -40℃ ~ 1000℃ (-40℉ ~ 1832℉)

• Accuracy: ±(1.5% + 5 digits) (Requires K-type thermocouple probe, not included)

12. NCV (Non-Contact Voltage) Detection

• Indication: Audible beep and LED indicator.

• Detection Range: AC Voltage >90V (50/60Hz) at close range.

Bluetooth & App Functionality (Owon Smart Phone App)

• Real-time Display: Mirrors the meter's screen on your smartphone/tablet.

• Data Logging: Records readings with timestamps. Configurable sampling rate.

• Graphing: Plots measurements (voltage, current, etc.) in real-time on a scrollable graph.

• Min/Max/Avg: Calculates and displays these values for logged sessions.

• Data Export: Allows saving logs as CSV or TXT files for analysis in spreadsheet software.

• Remote Trigger: Use the phone as a remote trigger for data hold or range change.

Included Accessories (Typical Package)

• Owon B35T+ Multimeter

• Test Leads (pair, with shrouded banana plugs)

• K-Type Thermocouple Probe (in many bundles, but verify with seller)

• 3 x AAA Batteries

• User Manual

Important Notes for Use

• The 10A input is unfused. Use extreme caution; it is not protected against overload.

• The mA/µA inputs are fused with a F500mA/1000V fast-acting fuse.

• For safety, always use the correct jack and range for your measurement.

• The Bluetooth function drains batteries more quickly. It's recommended to remove batteries if not used for an extended period.