EconoTemp 323 Type K Thermocouple Instrument NSF -40/500°F/°C: The EconoTemp 32311 thermocouple thermometer was designed primarily for the foodservice industry. The slim line design fits nicely in the palm of your hand and will provide a good ergonomic grip. The addition of the molded rubber boot provides impact and water resistance. Rubber boot also has molded tabs on the side to hold and store most needle probes. Micropower design provides 4500 hours battery life.

The TIF3320 Series Thermocouple Thermometers easily take differential temperature readings with the dual type-K thermocouple probes plus non-contact surface temperatures using the IR thermometer probe. Use contact differential temperature measurements (T1-T2) to display HVAC Superheat measurements. Display temperature differentials between both contact and IR temperature readings (T1, T2, T3). Rugged design that is easy to grip and hold. Use the IR thermometer probe to measure non-contact surface temperatures up to 1022 °F and beads to 2501°F.

The Mastercool 52228 Digital Differential Thermometer provides instant measurement of TWO points, T1 and T2, or T1 - T2. With features like, max hold, data hold, temp in either Celsius or Fahrenheit, AUX out-put jacks, T1 - T2 differential, K type thermocouple input and it comes with two 3 ft thermocouple probes.