Fieldpiece HS35 Multimeter — Auto/Manual Ranging for HVACR

The Fieldpiece HS35 gives HVACR pros fast, safe, one-hand testing. It works with all Fieldpiece accessory heads, includes a magnetic hanger, detachable silicone leads with alligator clip tips, and packs the ranges you use every day. Built-in temperature (K-type), microamps DC for flame rectification, capacitance, and smart safety features make it a reliable go-to on site.

Why techs like it

• Accessory-head ready — expands to dozens of HVACR tests.
• Volt stick (NCV) — quick non-contact voltage checks.
• µA DC — test flame diode circuits.
• 400 A AC (with clamp) — clip on the included ACH4 accessory.
• Temperature to 535 °C — K-type input with solid compensation.
• Capacitance / MIN-MAX / continuity — core HVACR ranges covered.
• True one-hand testing — magnetic hanger + removable tip leads.
• Built tough — ABS case, rubber bumpers, ergonomic shape.
• Auto Power-Off — saves battery when you forget.
• Lead storage onboard — tidy, ready for the next call-out.

What’s in the box

• HS35 Expandable Auto/Manual Ranging Stick Multimeter
• ACH4 400A Amp Clamp Accessory
• ADLS2 Deluxe Silicone Test Leads
• ASA2 Short Alligator Lead Extensions
• ANC1 Deluxe Meter Case
• K-type thermocouple
• 9-V battery (installed)
• Operator’s manual

General specs

• Display: 3¾-digit LCD (max 3999)
• Bar graph: 41 segments, 20 samples/sec
• Ranging: Manual (HS35); “OL” indicates overrange
• Auto Power-Off: ~30 minutes
• Operating environment: 0–50 °C (32–122 °F), <70% RH
• Storage: −20–60 °C (−4–140 °F), 0–80% RH (battery removed)
• Power: 1× 9-V (NEDA 1604 / JIS 006P / IEC 6F22); ~300-hour life (alkaline)
• Safety: UL, CE, CAT III 600 V, UL3111, IEC1010-1

Accuracy conditions

• Specified at 23 °C ±5 °C (73 °F ±9 °F), <75% RH
• Temperature coefficient: 0.1 × (specified accuracy) per °F (32–64 °F, 82–122 °F)

Electrical ranges & protections

DC volts

• Ranges: 400 mV, 4000 mV, 40 V, 400 V, 600 V
• Resolution: 0.1 mV
• Accuracy: ±(0.5% rdg + 2 dgt)
• Input Z: 560 kΩ (V); 10 MΩ (mV)
• Protection: 600 V DC/AC rms; transient 6 kV/10 µs

AC volts (50–500 Hz)

• Ranges: 400 mV, 4 V, 40 V, 400 V, 600 V
• Conversion: Average (HS35); True RMS on HS36
• Resolution: 0.1 mV
• Accuracy: ±(1.2% rdg + 5 dgt) 50–60 Hz (400 mV range); ±(1.5–2.0% rdg + 5 dgt) up to 600 V
• Input Z: 560 kΩ
• Protection: 600 V DC/AC rms; transient 6 kV/10 µs

DC current

• Ranges: 400 µA, 4000 µA
• Resolution: 0.1 µA
• Accuracy: ±(1.0% rdg + 2 dgt)
• Burden voltage: 200 mV (400 µA); 2 V (4000 µA)
• Protection: 250 mA/600 V (6.3×32 mm fast-blow ceramic, RFM66)

Resistance

• Ranges: 400 Ω, 4 kΩ, 40 kΩ, 400 kΩ, 4 MΩ, 40 MΩ
• Resolution: 0.1 Ω
• Accuracy: ±(1.0% rdg + 4 dgt) 400 Ω–400 kΩ; ±(1.5% rdg + 4 dgt) 4 MΩ; ±(3.0% rdg + 5 dgt) 40 MΩ
• Open-circuit volts: ~0.45 V DC (≈1.2 V on 400 Ω)
• Protection: 500 V DC/AC rms

Capacitance

• Range: 400 µF; Resolution: 0.1 µF
• Accuracy: ±(3% rdg + 5 dgt)
• Protection: 250 mA/600 V fuse (RFM66)

Frequency

• Ranges: 4 k, 40 k, 400 k, 4 M, 40 MHz
• Resolution: 1 Hz; Accuracy: ±(0.1% rdg + 3 dgt)
• Sensitivity: 10 Hz–4 MHz >1 V rms; 4–40 MHz >2 V rms (<5 V rms)
• Pulse width: >25 ns; Duty: 30–70%
• Protection: 500 V DC/AC rms

Continuity

• Tone: <40 Ω; ~500 ms response; green LED on solid
• Protection: 500 V DC/AC rms

Temperature (K-type)

• Range: −30 to 1000 °F (−34 to 538 °C)
• Resolution: 0.1 °F
• Accuracy: ±1 °F (32–120 °F); ±(1% + 1.5 °F) −4–750 °F; ±(2% + 4 °F) −30 to −4 °F and 750–1000 °F
• Sensor: K-type thermocouple
• Input protection: 60 V DC or 30 V AC rms (temp input)

Manual & Warranty

• Download the Fieldpiece HS35 data sheet (PDF)

Warranty: 1 year