Mastercool 52228 Digital Differential Thermometer – Dual K-Type Input

The Mastercool 52228 Digital Differential Thermometer offers precise temperature measurements for HVAC technicians. With a range of -50°C to 1300°C (-50°F to 1999°F), it supports K-type thermocouples for single or dual-point (T1, T2) readings, displaying differences (T1-T2). Features include a 3.5-digit LCD, max/data hold, °C/°F switching, and a 9V battery lasting 200 hours. It includes two 3ft thermocouple probes. It is perfect for air conditioning and refrigeration diagnostics.