DIY kit suitable for all propane and natural gas systems, but some modifications may be required during installation as it may not fit all existing mounting holes or wire lengths (if power supply is insufficient, two can be used). Output voltage: >= 20kV, spark distance: 3-5mm, cable length: 30cm. Applicable gases: LPG/NG. Temperature resistance: -20°C to 120°C. Electrode: M10 x 1. Length: 51mm. Straight pin length: 19.5mm. 135 degrees at head: 9mm. No battery required; generates spark upon pressing. Service life: more than 30,000 uses. Set includes 2 piezo push buttons with universal spark plug thread, 30 cm cable length. Features and specifications: Spark distance: 2-3mm. Length: 9cm. Diameter: 2.6cm. Output voltage: >= 18kV. Pressure: 3.0 ± 0.5 kg. Applicable gases: LPG, NG. Temperature resistance: -20°C to 120°C. No battery required; generates spark upon pressing. Cable length: 30cm. Electrode: M10 x 1. Length: 51mm. Straight pin length: 19.5mm. 135 degrees at head: 9mm.