The product is compact and portable. It is easy to use with manual operation. It has a long service life and reliable performance. It features high-quality construction and durable materials. It is suitable for various applications. Temperature control range: -50 ℃ to 110 ℃ Temperature measurement accuracy: 0.1 ℃ Temperature sensor input: NTC (10k, 0.5%) waterproof thermometer Temperature output: 1-channel 10A relay Hysteresis accuracy: 0.1 ℃ High-temperature protection range: 0–110 ℃ Resolution: 0.1 ℃ for -9.9 to 99.9; 1 ℃ for other ranges Input voltage: DC 12V Refresh rate: 0.5 seconds Power consumption: standby current <35 mA; pull-in current <65 mA Display: 0.28-inch red three-digit Nixie tube Product appearance and labeling may vary slightly between batches, without affecting functionality. Color: As shown Material: Plastic Package includes: 1 × W1209 12V temperature controller 1 × W1209 housing Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.