Value VSTL Bluetooth Temperature Clamp - Pipe Temperature Clamp with Digital Display (-40/+125°C, Ø19-105 mm)

This is a Bluetooth-connected digital temperature clamp designed to measure pipe surface temperature quickly and reliably during maintenance of air conditioning, VRF and refrigeration systems. With dual temperature sensors and an HP/LP line selection wheel, the Value VSTL reads on its own display the temperature data needed for superheat and subcooling diagnosis and transfers it instantly to the Hi VALUE app; technicians and service companies can record measurements and report them to the customer.

Dual-Sensor Digital Pipe Temperature Clamp with Hi VALUE App

Key Technical Specifications and Field Advantages

• Wide Measuring Range: Measurement in the range of -40°C / +125°C with ±1.5°C accuracy; can be used reliably on both suction and discharge lines.
• Ø 19 - 105 mm (3/4" - 4-1/8") Clamp Capacity: A single clamp grips a wide range of pipes, from split air conditioners to large-diameter VRF and commercial lines.
• Dual Temperature Sensors: The lower and upper sensors make full contact with the pipe for stable readings; the clamp shows an "OPEN" warning when it is open/has no contact.
• HP/LP Line Selection Wheel: The side wheel marks the high/low pressure side of the measured line on the display; prevents confusion when working with two devices.
• Bluetooth + Hi VALUE App: BLE connection with 50 m range; live monitoring, data logging, report creation and sharing in the app (iOS 12+ / Android 7+). Two clamps can be connected at the same time to monitor the suction and liquid lines together. Stand-alone use without the app is also possible.
• A2L Compatible: Suitable for use on systems with A2L class refrigerants such as R32.
• Field Ready: IP54 protection, 1.3" digital display, LED status light, audible alarms (out of range, sensor contact, hardware) and auto power off (APO) to save battery.

Technical Specifications

• Brand and Model: Value / VSTL
• Measuring Range: -40°C ~ +125°C
• Accuracy: ±1.5°C / Resolution: 0.1°
• Pipe Diameter Capacity: Ø 19 - 105 mm (0.75" - 4.1")
• Bluetooth: BLE, ~50 m open-field range; Hi VALUE app (iOS 12+ / Android 7+)
• Display: 1.3" digital display (°C/°F selectable)
• Protection Class: IP54
• Operating Environment: -10°C ~ +50°C, 10-75% RH; altitude ≤5000 m
• Power Supply: 2 x AAA batteries
• Auto Power Off: Display turns off after 1 min of inactivity, device turns off after 2 hours

Technician Tips

• For superheat/subcooling measurement, set the side wheel according to the line you are measuring (HP/LP); the app report then clearly shows which line you measured.
• By connecting two VSTL units to the Hi VALUE app at the same time, you can monitor the suction and liquid lines simultaneously and share them in a single report.
• The clamping force is high; do not fit it on fragile or scratch-sensitive surfaces (manufacturer warning).