Wahl ST2200 Soldering Iron Tester


The Wahl ST2200 Soldering Iron Tester verifies soldering iron integrity using precise thermocouple sensors to simulate actual solder joints.  The ST2200 is intended to be used as a quality tool to assist manufacturers in complying with Soldering Standard IPC/EIA J-STD-001C or other applicable standards.

Designed to be simple and repeatable, this unit works with a variety of interchangeable sensors to work with your soldering iron.  ESD safe construction.

Specify °F or °C, 110V or 220V AC power, and North American, British, or European plug and receptacle.

  • Millivolts AC only test with pass/fail warning light for voltage is MIL-SPEC compliant.
  • Resistance test is user selectable for 2 ohms or 5 ohms with pass/fail warning light.
  • Includes option to output to recorder: 1 mV°F, 100 mV/mV, or 100mV/ohm.
  • Transient voltage spike detector detects transients over 100 mV and 1μs pulse width.
  • With built in Type K Thermocouple connector for Type K probes.  Wire probe is included.
  • Function selection switch allows for fast tests without moving the tip of the soldering iron.
  • Auxiliary AC convenience powers the soldering iron under test and insures common ground with the tester.
  • Use wrist strap tester to verify strap integrity.

Includes TC800K Wire Probe, WST-02B Sensor, Cleaning Brush, and User Manual.  User manual includes calibration instructions and troubleshooting guide.

NIST Certificate of Conformance is optional and sold separately.

View our Replaceable Thermocouple Solder Bead Sensors or our Sensor Rebuilding Kits for the ST2200.


Temperature Scale


Temperature Range

50°F to 1300°F (10°C to 700°C)


Three year warranty covers defects in materials and workmanship

Temperature Accuracy

Greater of ±1.0°F/°C or ±0.1% of reading.

Temperature Resolution

Factory set at 0.1°F/°C, switchable to 1.0°F/°C via internal jumper

Resistance Range

0.00 to 100.00 Ohms

Resistance Accuracy

Accuracy: 0-20 ohms ±0.15 ohm, ±1 digit
20-100 ohms ±0.5% ± 0.1 ohm

Test Current

10 mA DC

LED Warning Indicator: Current

Factory set at 5.00 Ohms. Switchable to 2.00 Ohms via internal jumper

Voltage Range

0 - 30mV true RMS, AC or AC+DC range

Millivolt Resolution

Factory set at 0.01 mV. Switchable to 0.1 mV via internal jumper

Millivolt Accuracy

±0.1mV ± 1 digit

LED Warning Indicator: Millivolts

Indicates at 2.0mV threshold

Digital Display

LCD with 0.7 inch high characters

Output Jack: Type

.101" Subminiature phone jack

Output Jack: Temperature

1.0 mV/degree, ±5°F

Output Jack: Resistance

100 mV/Ohm for the 0-30 Ohm range, ±0.15 Ohm

Output Jack: Voltage

100mV/mV for the 0-30mV range, ±0.15mV

Output Jack: Protection

Short circuit and Over Voltage protected

Auxillary AC Outlet

Equipped with North American receptacle.
Note: 220Volt models also equipped with North American receptacle, marked as 220VAC.

Auxillary Thermocouple Connector

Mini Type K thermocouple female connector provided for use with optional T/C probes.
User selectable by front panel switch.

Wrist Strap Tester

Activated in Resistance /Wrist Strap Test position. Bi-color LED indicates Green when in acceptable
range of 500K to 10M ohms. Red when outside of acceptable range.

Voltage Spike Detector

Activated in both Millivolt ranges. Indicates green in no-fault condition and flashes red for approx.
1 sec. when spike detected.

Spike Detect Threshold

>100mV amplitude, > 1 uS pulse width

Ambient Environment

Operational: 45°F to 105°F (7.2°C to 40.5°C)
Storage: -4°F to 122°F (-20°C to 50°C)


8.5 inches W x 10.5 inches D x 3.5 inches H
21.59 cm W x 26.67 cm D x 8.89 cm H


3 lbs. (1.36 Kg)


NIST Certificate of Calibration available, sold separately