PR721/PR722 Series Precision Digital Thermometer


The PR721 series precision digital thermometer features an intelligent sensor with a locking structure, allowing for the interchangeability of sensors with various specifications to meet diverse temperature measurement needs. Supported sensor types include coiled platinum resistance, thin-film platinum resistance, thermocouple, and humidity sensors. The device can automatically identify and load the connected sensor's type, temperature range, and correction value. The thermometer is entirely made of aluminum alloy and boasts an IP64 protection rating, ensuring reliable use in harsh environments.

The PR721 series precision digital thermometer features an intelligent sensor with a locking structure, allowing for the interchangeability of sensors with various specifications to meet diverse temperature measurement needs. Supported sensor types include coiled platinum resistance, thin-film platinum resistance, thermocouple, and humidity sensors. The device can automatically identify and load the connected sensor's type, temperature range, and correction value. The thermometer is entirely made of aluminum alloy and boasts an IP64 protection rating, ensuring reliable use in harsh environments.

  1. Intelligent sensor, with a temperature range of -200 to 1300 °C. Utilizing high-temperature resistant locking components, the host can automatically load the current sensor type, temperature range, and correction value after connecting to the intelligent sensor, improving temperature traceability accuracy and operational efficiency.

  2. Low temperature drift; within the 5~50℃ range, the electrical measurement accuracy is better than 0.01, and the resolution is 0.001℃, which can meet the requirements for high standard temperature calibration.

  3. In U disk mode, charging or data transmission can be performed via the Micro USB interface, which is convenient for quick modification of test data.

  4. Gravity sensing function supports automatic screen flipping, allowing for an ideal reading experience when placed on the left or right.

  5. Supports Bluetooth or ZigBee communication; you can use the Panran Smart Measurement APP to synchronize data or expand other applications.

  6. IP64 protection class for reliable use in harsh environments.

  7. Extremely low power consumption, built-in rechargeable lithium battery, continuous operation for over 130 hours.  



Electrical Accuracy (one-year calibration period) ModelPR721A PR722APR721B PR722BRemark
External Dimensionsφ29mm×145mmSensor not included
Weight80 gWeight with battery
Data Storage Capacity8 MB (stores 320,000 data sets)Contains time information
External InterfaceMicro USBCharging/data
Battery Specifications3.7 V 650 mAhRechargeable lithium battery
Charging Time1.5 hoursDC5V 2A charging
Battery Life≥80 hours≥120 hours
Wireless CommunicationBluetooth (effective distance ≥ 10 m)ZigBee (effective distance ≥50 m)in the same space

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