Features: 1. Built-in hardcover probe with waterproof and breathable film design for accurate measurement. 2. Black shielded wire provides waterproof, oil-proof performance and strong anti-interference capability for stable signal transmission. 3. Wall-mounted design with an elegant appearance and installation screws on both sides for simple, space-saving installation. 4. Complete isolation between input power, induction probe, and signal output ensures safe and reliable operation. 5. Offers a wide measuring range, excellent linearity, ease of use, easy installation, and long-distance signal transmission. 6. Widely used in agricultural greenhouses, flower cultivation, and other applications requiring CO2, temperature, and humidity monitoring. Specifications: Condition: New Item Type: Carbon Dioxide Sensor Material: ABS Color: As shown in picture Size: Approx. 11 x 8.5 x 4 cm / 4.3 x 3.3 x 1.6 in Weight: Approx. 232 g / 8.2 oz Power Supply: 12–24V DC Carbon Dioxide Measurement Range: 2000 ppm Average Current: Not specified