The Lodestar L905191/L90191E thermometer is a handheld temperature measuring device that uses K‑type thermocouple sensors. The manual provides step‑by‑step instructions for assembling the sensor, powering the unit, and taking temperature readings on soldering tips, liquids, or other objects.
Precautions cover careful handling of the thin‑wire sensor, battery replacement, and limits on measurement temperature. Technical specifications, accessories, and a parts list are also included for reference. This manual is written in Chinese.
| Measurement range | 0 °C – 600 °C (0 °F – 1200 °F) |
|---|---|
| Sensor type | K‑type thermocouple |
| Battery life | more than 150 hours |
| Dimensions | 160 mm × 45 mm × 80 mm (L × H × W) |
| Weight | ≈200 g (0.44 lb) |
| Operating temperature range | 0 °C – 40 °C (0 °F – 104 °F) |
Open the battery case on the back of the unit, insert a new 9 V dry battery, and close the case.
It can measure temperatures from 0 °C to 600 °C (0 °F to 1200 °F).
Each sensor has an effective life of about 50 measurements.
No, the red and blue leads must not be reversed; using them incorrectly can cause errors.