High accuracy, 3 metre long thermistor type A probe in sealed Glycol filled bottle for vaccine monitoring. Works with the following products: EL-21CFR-TP-LCD+, EL-USB-TP-LCD+, EL-GFX-DTP+, EL-WIFI-TP+, EL-WIFI-DTP+. Measurement Range: -40 to +60°C / -40 to + 140°F Accuracy: ±0.1°C / ±0.2°F