Features: High-precision gas sensor for accurate and reliable gas leak detection with fast response time. Detects various flammable gases such as methane, natural gas, propane, butane, and ethane. This portable pen-style gas analyzer provides visual and ble alarms when combustible gases are detected. Compact and lightweight design for easy carrying and operation. Use the handheld detector in areas where a gas leak may be present and monitor the displayed gas levels. Specifications: Material: Plastic Size: Approximately 170 x 28 mm (7 x 1 inch) for HT59; 158 x 28 mm (6 x 1 inch) for HT60 Model: HT59 / HT60 (optional) Measuring Range: 0–1000 PPM Pre-heating Time: 30 seconds Note: Please allow 1–3 cm error due to manual measurement. Check product dimensions carefully before purchase. The actual color may vary slightly due to differences in monitor displays. Package Includes: 1 x Gas Leak Detector