FG-100 Digital Thermometer Temperature Tester for Soldering Iron Tip

(4 customer reviews)

Original price was: $26.00.Current price is: $22.00.

9034 in stock


65275-9eef20.jpegThermometer RST FG-100 Soldering iron thermometer specifications: 0.2 mm CA sensor can accurately and quickly measure the temperature of the soldering tip, suitable for lead-free solder; tip temperature can be measured at any angle according to the shape of the tip.



  • Made of high quality material, durable and practical to use.
  • Soldering Iron thermometer provides reliable control of the soldering iron temperature.
  • Application of a thin CA linear sensor (φ0.2 mm) in order to get good temperature reactions.
  • When the thermometer is not used for 3 minutes, the power will automatically turn off.
  • Display 3.5-bit LCD display. Displays information about battery failure and sensor burnout.
  • Allows you to take measurements from any desired direction based on the shape of the pen tip.
  • Maximum Hold function: When the “Max Hold” button is pressed, “Max Hold” will be displayed and the maximum temperature of the iron will be held on the display.


  • The FG-100 thermometer provides fast, accurate tip temperature measurements using a fine CA wire sensor (ø0.2). The FG-100 measures tip temperatures as well as solder pot temperatures (with optional temperature probe.)
  • Lightweight, easy-to-replace sensors provide accurate measurement of tips for verification or calibration processes. When the MAX HOLD feature is enabled, the thermometer will display the maximum temperature measured.
  • To preserve battery life, the auto shutoff feature turns the thermometer off when not used for three minutes. The thermometer design allows for easy measurements from right or left handed operators.



  • Size: approx. 70 x 130 x 40 mm
  • Power Supply: 006P 9V dry battery (not included)
  • Temperature Resolution: 1 ℃
  • Temperature Measurement Range: 0 to 700℃
  • Temperature Precision: ±3 ℃ (300 to 600 ℃), ± 5 ℃ (other than above)
  • Temperature Sensor: K (CA) type thermocouple


  • LCD: 3 1/2 digits
  • Besides measured temperatures,display indications include the following:
  • Battery low alarm
  • Burnout alarm
  • Ambient Temperature / Humidity Range: 0 to 40 ℃, 20 to 90 % RH (without condensation)
  • Environmental Conditions: Applicable rated pollution degree 2 (According to IEC / UL 61010-1)



Additional information

Weight0.3 kg

4 reviews for FG-100 Digital Thermometer Temperature Tester for Soldering Iron Tip

  1. Customer

    Arrived very quickly to UK and works very well – thank you

  2. E***n

    Excellent. Easy to operate. I always wanted to check temperature of my soldering irons, so as excessive temperature is not good for soldering.

  3. Customer

    All right. The stack needs to be bought apart. It brings 5 sensors as indicated. The blister says it’s 10. I don’t think it’s original Hakko, made in Japan. It came well to calibrate the welding station. It allows for total precision. Keep an eye on the temperatures below that of tin fusion. If the tip has tin the tip surface may not fully come into contact with the sensor, reducing the efficiency of the energy transmission (heat), marking a lower temperature. It is easy to check by increasing the melting temperature of tin or more. With liquid tin the tip can touch the sensor with all its surface, giving the exact temperature after calibrating. Depending on the soldering station you may need to tell the temperature several times if the first setting does not reach the desired temperature.

  4. B***K


Only logged in customers who have purchased this product may leave a review.