Bluetooth Enabled Smart Tweezers ST5S-BT2

Smart Tweezers ST-5S with Bluetooth Connectivity for More Efficient Measurements

Smart Tweezers with Bluetooth

Remotely Record Measurement Values, Set Custom Profiles and More

Smart Tweezers ST5S-BT2 is a new device based on the ST-5S model, with all the same features and high basic accuracy with the ability to send data via Bluetooth to any communication software, such as NI LabView® or Windows' Smart Tweezers Bluetooth Utility, as well as dedicated apps for Android and iOS. The ST5S-BT2 model is able to receive data also, including specific measurement settings set by custom profiles.

Virtual Serial Port

ST5S-BT2 connects to devices using the USB receiver stick that establishes a virtual serial port.

Note: the receiver stick must be connected with PC and NI Labview® Software.


ST5S-BT2 can send and receive using communication software such as NI Labview®, Windows' Smart Tweezers Bluetooth Utility, TeraTerm, etc.
Dedicated apps for Android and iOS.

Smart Tweezers ST-5S

Based on the ST-5S device with 0.2% basic accuracy and fully automatic measurements.

Custom Profiles

Users can create custom profiles to automatically pass/fail components.


ST5S-BT2 connects to a device using a USB receiver stick that establishes a virtual serial port. (Note: The receiver stick must be used with the PC and NI Labview® Software).

Smart Tweezers with Bluetooth sending measurement values to TeraTerm

Remote Measurement Recording in Real-Time

The Measurement values are sent in a comma separated string of values that represent what is present on the devices' screen.

An example of this string: C1.398nF,R3.461kR,10kHz,0.5,S,,,,; The string is explained as such: main impedance value type, C, and its value, 1.398nF, secondary impedance, R, and its value, the test frequency 10 kHz, test signal level 0.5 V, the measurement mode S for Serial, and 4 reserved values.
This information is sent and can be saved into a file or document as required. When using LabView® software, the computer could process the data for future use or store it in a database.
Smart Tweezers ST5S-BT2 is able to connect with PC (using the receiver stick, required) and dedicated apps for Android and iOS.

Remotely Connecting the Device : Simple Software Solutions

To use the device with Windows Microsoft Software and NI LabView® the receiver stick must be used. It can be purchased with the device from the LCR-Reader Store

NI Labview Smart Tweezers BluetoothSmart Tweezers Bluetooth National Instruments LabView

National Instruments

The Smart Tweezers ST5S-BT2 LabView® driver is supported and certified by National Instruments. Using this driver allows a smooth integration with Bluetooth enabled Smart Tweezers. When connected, LabView® can create database storage and log data. A few examples of the device working with LabView® are available below.

Smart Tweezers Bluetooth Utility Pass Fail screen

Smart Tweezers Bluetooth Companion for Windows

Smart Tweezers ST5S-BT2 can be connected to Smart Tweezers Bluetooth Companion on Windows 7/8/10. When connected, the ST5S-BT2 device can relay information from the program and the device ,including custom profiles and settings. All data sent from the device can be logged using .csv for Excel, or copied and pasted into a preferred file format. Custom profiles can be created from previous measurements or manually. These profiles include measurement parameters and can include device settings such as test frequencies.
Siborg has compiled a Windows Bluetooth Utility Manual.

Smart Tweezers Bluetooth Receiver Stick

Dedicated and Custom Applications

ST5S-BT2 can connect to iOS or Android phones and tablets. These apps are available in their respective app stores. The apps connect and log data, share data with other connected devices and help visualize measurements.

Using available USB Bluetooth receivers, the Bluetooth Smart Tweezers devices can be integrated into custom user environments. The receiver is based on FTDI bridge and creates a virtual RS232 serial port, allowing for easy connection.

Features on Smart Tweezers ST5S-BT2

  • Manual and automatic L, C, R, ESR and Z Test modes
  • Basic accuracy of 0.2%
  • Component sorting with variable tolerances of 1%, 5%, 10 and 20%
  • Adjustable test signal levels
  • Parasitic offset subtraction
  • Continuity/diode/short testing
  • Extensive menus for customized measurements
  • 1 oz. weight
  • NIST traceable calibration certificate
  • Li-Ion battery with micro-USB charger included
  • 4-way joystick navigation

Technical Specifications
Frequency 0.1, 0.12, 1, 10 kHz +/- 0.005%
Test Signal Level 0.45, 0.9 +/- 5% Vrms
Source Impedance 62.5Ω, 1kΩ, 6kΩ - 1%
Typical Accuracy
Resistance 0.2%
Capacitance 0.2%
Inductance 0.2%
Measurement Range
Resistance 0.1 Ohm to 10 Mohms
Capacitance 0.5 pF to 1 mF
Inductance 0.5 uH to 1 H