FireBoard Spark is a highly accurate and fast instant-read thermometer, combined with a leave-in probe port for longer term temperature tracking. Pairing your Spark with the FireBoard Mobile App keeps your temperature data available remotely everywhere you go. WiFi, Bluetooth, and FireBoard Cloud Connected. SyncMode is a powerful mode to track other FireBoard devices using Spark as a display. This powerful feature uses the FireBoard Cloud to transform Spark into a beautiful countertop device, making all your FireBoard temperatures available at a glance. Features: Built-in magnets for easy storage on metal surfaces External probe port enables monitoring of long-term cooking sessions Instant-Read thermocouple probe delivers fast and accurate temperature readings NFC scanner allows streamlined labeling of instant-readings NIST-Traceable calibration certificate NSF Certified Sync Mode transforms your Spark into a remote FireBoard monitor USB-C rechargeable Li-Ion battery provides 12+ months of normal use Waterproof WiFi, Bluetooth 4.0 (BLE) and FireBoard Cloud enabled Probe Specifications: Connection: WiFi, Bluetooth 4.0 (BLE), or FireBoard Cloud Temperature Range: -58 to 572F (-50 to 300C) Accuracy: +-0.7F (+-0.4C) from -4 to 392F (-20 to 200C); +-1.8F (+-1.0C) Full Range Resolution: 1.0 or 0.1 Degree User Selectable External Probe Port: 10K or 100K Thermistor FireBoard Probes (Not included) Battery: 2600mAh Li-Ion rechargeable battery Display: 192x64 LCD, Backlit Waterproof: IP66 Dimensions: 6.25" x 1.4" x 1.1" (159mm x 37mm x 27mm) | 5oz (145 grams) Warranty: 1 Year Warranty Documents: User Guide: Link