This kit contains:

• Pack of pH papers (range 6.0 – 10.0)
• Mini Infra-Red (IR) Thermometer
• Refractometer
• Sample bottle
• Plastic dropper

The Sentinel FrostCheck Test Kit needed for checking the health and performance of ground/air source heat pump systems that use glycol-based heat transfer (thermal) fluid.

Please note: Its essential that you check the correct level of antifreeze is using the kits refractometer.

Features and benefits:

• Confirms successful frost protection
• Measures system performance
• Helps determine when fluid replacement is required