Fluke 53 II B Single Input Digital Thermometer


Fluke 53 II B Data Logging Thermometer with Single Input

Fluke 53 II B Single Input Digital Thermometer


The Fluke 53 II single input digital thermometer delivers fast response with laboratory accuracy (0.05% + 0.3°C). And it logs up to 500 points of temperature data to internal memory. You can use the 53 II to measure contact temperature on motors, insulation, breakers, pipes, corroded connections, liquids, and wires with industrial standard J, K, T, E, N, R, or S-type thermocouple temperature sensors. The user-friendly-front panel and large, backlit display make it easy to view results and recall logged data for further review. And the sleep mode feature preserves battery life to give you a typical thousand hours of operation.

Temperature accuracy Above -100°C J, K, T, E, and N-type: ±[0.05% + 0.3°C]1
R and S-type: ±[0.05% + 0.4°C]1
Below -100°C J, K, E, and N-types: ±[0.20% + 0.3°C]1
T-type: ±[0.50% + 0.3°C]
Temperature J-type -210°C to 1200°C
K-type -200°C to 1372°C
T-type -250°C to 400°C
E-type -150°C to 1000°C
N-type -200°C to 1300°C1
R and S-type 0°C to 1767°C1
Temperature scale ITS-90
Applicable standards NIST-175
Display resolution 0.1°C, 0.1 K < 1000
1°C, 1 K ≥ 1000
Environmental Specifications
Operating temperature -10°C to 50°C
Storage temperature -40°C to 60°C
Humidity (without condensation) 0% to 90%; 0°C to 35°C
0% to 70%; 0°C to 50°C
Safety Specifications
Overvoltage category CSA C22.2 No. 1010.1 1992; EN 61010 Amendments 1,2
Agency approvals CE, CSA, TÜV (pending)
Mechanical and General Specifications
Size (L x W x D) 173 x 86 x 38 mm
Weight 400 g
Batteries 3 AA batteries; typical 1000-hour life


  • Impact absorbing holster
  • Two 80PK-1 bead probe thermocouples
Weight 0.4 kg
Dimensions 173 × 86 × 38 mm