Browin 20510 020510 Outdoor Thermometer, for Gluing, Transparent, White, Medium Size, Universal, Thermometer Scale from -70 to +50 °C, 26 mm x 230 mm, 4.5 x 10 x 32 cm, 4.50 x 10 x 32 cm : Amazon.de: Garden
Amazon.com: Floating Pool Thermometer, Flamingo Shaped Durable Waterproof Water Thermometer, Plastic High Accuracy Floating Pool Thermometer, for Swimming Pool SPA : Patio, Lawn & Garden