Dial Size
101" Pocket sized (26 mm)
181-3/4" (44 mm)
202" (53 mm)
Product page
NOSHOK
150 Series Testing and General Purpose Bimetal Thermometers
The NOSHOK 150 Series Testing and General Purpose Bimetal Thermometers are designed for spot-checking, quality control, maintenance inspections, and laboratory testing applications. Engineered with a compact, weather-resistant 304 Stainless Steel case and a .150" (3.81 mm) diameter stainless steel stem, these thermometers provide rapid thermal response and ASME B40.3 Grade A accuracy (±1% of span). Available in 1" (pocket sized), 1-3/4", and 2" dial sizes with optional pocket sheath and silicone vibration dampening.
Testing and general purpose thermometer designed for spot checking and field inspections
Pocket sized 1" model along with 1-3/4" and 2" dial sizes with center back connection
Accuracy: ±1% full scale (Grade A, ASME B40.3)
Durable 304 Stainless Steel case, bezel, and stem construction
Ready for quotationShare your range, connection and case requirement.
Talk to ATHApplicationsLaboratory testing, quality control spot-checking, food & beverage processing, asphalt, concrete, HVAC, and field maintenance
Dial sizes1" (10-150 pocket), 1-3/4" (18-150), 2" (20-150)
Accuracy±1% full scale, Grade A, ASME B40.3
Temperature ranges-100 °F to 1,000 °F (-75 °C to 550 °C) in dual °F/°C, single °F, and single °C scales
Stem lengths5" (050), 8" (080) standard; 12" (120) and 18" (180) on 2" model
Stem diameter.150" (3.81 mm) 304 Stainless Steel
Case construction304 Stainless Steel, hermetically sealed per ASME B40.3 (dustproof and leakproof)
Part number example20 - 150 - 080 - 0/140 F/C - LL
Technical data
Selection and ordering reference
Configure dial size, stem length, temperature range, scale units, and pocket accessories for the NOSHOK 150 Series Testing Bimetal Thermometers.
Dial sizes1" (Pocket), 1-3/4", 2"
Accuracy±1% full scale (ASME B40.3 Grade A)
Case & Stem304 Stainless Steel
Stem diameter.150" (3.81 mm)
Ranges-100 °F to 1,000 °F (-75 °C to 550 °C)
Case Type
150Center back connection (Testing style)
Stem Length
0505" (127 mm)
0808" (203 mm)
12012" (304 mm) - Model 20-150 only
18018" (457 mm) - Model 20-150 only
Dual Scale Temperature Ranges (°F/°C)
-100/100 F/C-100 °F/°C to 100 °F/°C
-40/160 F/C-40 °F/°C to 160 °F/°C
0/140 F/C0 °F/°C to 140 °F/°C
0/180 F/C0 °F/°C to 180 °F/°C
0/220 F/C0 °F/°C to 220 °F/°C
0/250 F/C0 °F/°C to 250 °F/°C
20/240 F/C20 °F/°C to 240 °F/°C
25/125 F/C25 °F/°C to 125 °F/°C
50/300 F/C50 °F/°C to 300 °F/°C
50/400 F/C50 °F/°C to 400 °F/°C
50/500 F/C50 °F/°C to 500 °F/°C
150/750 F/C150 °F/°C to 750 °F/°C
200/1000 F/C200 °F/°C to 1,000 °F/°C
Options & Accessories
PSPocket sheath with clip (10 & 18 models)
LLPolycarbonate lens
PLAcrylic lens (20-150 only)
SLSilicone liquid filled (20-150 only)
TGTempered glass lens
STStainless steel tagging
Part number example
20 - 150 - 080 - 0/140 F/C - LL
20Dial size2" (53 mm)
150Case typeTesting back connection
080Stem length8" (203.2 mm)
0/140 F/CTemperature range0 to 140 °F/°C dual scale
LLOptionPolycarbonate lens
Technical specifications
Accuracy±1% full scale, Grade A, ASME B40.3
Dial sizes1", 1-3/4", 2"
Case & Bezel304 Stainless Steel; hermetically sealed
Stem diameter.150" (3.81 mm) 304 Stainless Steel
Stem lengths5", 8" standard (12", 18" on 2" model)
Temperature ranges-100 °F to 1,000 °F (-75 °C to 550 °C)
Operating notes
Minimum immersion depth is indicated by the 360° etched stem groove.
Pocket sheath with clip allows easy pocket carrying and spot checking in field applications.
Hermetic seal prevents internal moisture condensation during temperature transitions.
Product Description
The NOSHOK 150 Series Testing and General Purpose Bimetal Thermometers provide an indispensable portable tool for inspectors, service technicians, and lab researchers who need immediate, precise temperature verification. The hermetically sealed 304 Stainless Steel construction prevents lens fogging and resists environmental corrosion.
The 1" pocket-sized model (10-150) and 1-3/4" model (18-150) can be ordered with a durable clip-on pocket sheath (PS) that doubles as a holding handle during spot checks in hot liquids, soil, asphalt, or food products.
Compact and lightweight design ideal for tool kits, laboratory benches, and pocket carry
Silicone-coated bimetallic element ensures fast reaction time while absorbing transport vibrations
Precision-welded 304 SS stem with etched 360° minimum immersion groove
Dual-scale °F/°C dials feature high-contrast graduations for quick and error-free readability
Optional liquid silicone fill (SL) available on 20-150 model for continuous high-vibration applications
Ordering Information
Dial sizes10 = 1" (pocket), 18 = 1-3/4", 20 = 2"
Case type150 = Center back connection (plain testing stem)
Stem lengths050 = 5", 080 = 8", 120 = 12" (20-150 only), 180 = 18" (20-150 only)
Dual scale ranges (°F/°C)-100/100 F/C, -40/160 F/C, 0/140 F/C, 0/180 F/C, 0/220 F/C, 0/250 F/C, 20/240 F/C, 25/125 F/C, 50/300 F/C, 50/400 F/C, 50/500 F/C, 150/750 F/C, 200/1000 F/C
Single scale rangesSingle °F (-100/100 F to 200/1000 F) and Single °C (-75/175 C to 100/550 C)
Options & AccessoriesPS (Pocket Sheath for 10 & 18 models), LL (Polycarbonate lens), PL (Acrylic lens), SL (Silicone filled for 20 model), TG (Tempered glass lens), ST (Stainless steel tagging)
Part Number Example
Example20 - 150 - 080 - 0/140 F/C - LL
Dial size20 = 2" (53.06 mm)
Case type150 = Back connection (testing style)
Stem length080 = 8" (203.2 mm)
Temperature range0/140 F/C = 0 °F/°C to 140 °F/°C dual scale
OptionLL = Polycarbonate lens
Product Specifications
Accuracy±1% full scale, Grade A, ASME B40.3
Dial sizes1" (26 mm), 1-3/4" (44 mm), 2" (53 mm)
Case & Bezel304 Stainless Steel, hermetically sealed dustproof & leakproof
Stem.150" (3.81 mm) diameter 304 Stainless Steel
LensInstrument glass standard; Polycarbonate (LL), Acrylic (PL), Tempered glass (TG) optional
Dial & PointerAnodized aluminum dial with UV-resistant graduations; balanced black aluminum pointer
Over-temperature limitsUp to 250°F: 100%; 250°F to 550°F: 50%; 550°F to 1,000°F: continuous to 800°F, intermittent over 800°F
Operating Notes
For spot-checking measurements, ensure the stem is immersed at least up to the 360° groove to obtain accurate thermal equilibrium.
Thermometers with ranges 200/1,000 °F and 100/500 °C are designed for continuous use up to 800 °F (425 °C) and intermittent duty above 800 °F.
The Pocket Sheath (PS) option protects the stem when carried in tool belts and shirt pockets.
NIST-traceable calibration certificates are available for laboratory validation and ISO compliance.
Thermowells can be used when permanent installation in pressurized vessels or pipe lines is required.