SPECIFICATIONS Usage: swimming pool, pond and spa Theory: Multifunctional Thermometer Temperature Sensing Reaction Time: 48S Temperature Range Outdoor: -40 to 60 Celsius degree Temperature Range Indoor: 0 to 50 Celsius degree Style: Standing Station Receiver Size: 9*12*1.5cm / 3.5*4.7*0.6 inch Receiver Battery: 2pcs AAA (Not included) Product Name: Floating Thermometer Power Type: AAA battery Origin: (Origin ) Model Number: 16003339 Max. Range of Emitter and Receiver: 100ft Max Measuring Temperature: 50C - 69C Material: ABS Plastic Is Smart Device: No Frequency: 433Hz Features 3: Swimming Pool Thermometer Features 2: Swimming Pool Pond Spa Water Temperature Features 1: Wireless Floating Thermometer Emitter Size: 9*15cm / 3.5*5.9 inch Emitter Batteries: 2pcs AA (Not included) Display Type: DIGITAL Display Size: 2.0 - 3.9 Inches Certification: FCC Certification: CE Brand Name: sd24 Features: 1. Suitable for measuring indoor and remote outdoor temperature in swimming pool, pond and spa 2. Easy to Use: Can receive three channels with 433MHz/100m distance, and receive water temperature from up to 3 locations, professional and practical 3. Multi Purpose: You can set temperature alarm, alarm with snooze, display indoor and water temperature, month, date, date, week, time and reception channel, powerful and reliable 4. Digital Screen: Clear LCD display, easy to see the data 5. Temperature Range: Water temperature range: ?40 ~ 60 degrees; Indoor temperature range: 0 ~ 50 degrees 6. Application Occasion: Floating thermometer is the best choice to enhance swimming pleasure. ideal for family swimming pools, spas, pool spas, hot tubs, aquariums and fish ponds. Specifications: Type: Floating Thermometer Material: ABS Plastic Color: As Shown Frequency: 433Hz Max. Range of Emitter and Receiver: 100ft Temperature Range Indoor: 0 to 50 Celsius degree Temperature Range Outdoor: -40 to 60 Celsius degree Temperature Sensing Reaction Time: 48s Host Can Detect Three Channel Sensors Emitter Batteries: 2pcs AA (Not included) Receiver Battery: 2pcs AAA (Not included) Emitter Size: 9*15cm / 3.5*5.9 inch Receiver Size: 9*12*1.5cm / 3.5*4.7*0.6 inch Package Listing: 1 x Pool Sensor Transmitter 1 x Wireless Receiver 1 x User Manual Product Pictures FREE SHIPPING IS INCLUDED!