Mastercool 99946-BT-2 Spartan 4-Way Smart Manifold | Bluetooth | 4.3" Touchscreen | Built-in Vacuum Sensor

Mastercool 99946-BT-2 Spartan 4-Way Smart Manifold with Bluetooth

The Mastercool Spartan 99946-BT-2 is a professional 4-way digital smart manifold with a 4.3" colour touchscreen and Bluetooth® wireless technology. Designed for the modern HVAC engineer, it measures pressure, temperature, vacuum, superheat, and subcool simultaneously — with automatic calculations, data logging, and full wireless connectivity to the Mastercool Connect app.

With a built-in vacuum sensor accurate to 1 micron, there is no need for a separate micron gauge. The 4-way configuration provides high side, low side, and two additional service ports for maximum flexibility on system diagnostics and charging.

Key Features & Benefits

• 4.3" colour touchscreen LCD – intuitive navigation with a quick slide of the finger
• Built-in vacuum sensor – range 20,000 to 1 micron; no separate micron gauge required
• Bluetooth® 4.2 and 5 – 260ft (80m) line-of-sight range; connects to Mastercool Connect app (iOS & Android)
• Automatic superheat & subcool calculation – instant diagnostics across 100+ refrigerants
• Data logging – up to 36 hours of recorded data
• Leak test timers and alarms built in
• Li-ion rechargeable battery – 30-36 hours normal use (25-30 hours with Bluetooth); USB-C charging
• Auto-off after 30 minutes; sleep mode after 4 minutes
• 4-way valve configuration – high side, low side, and two additional service ports
• Gauge Class 1.0 accuracy

Display & Measurement

• Pressure: psi, bar, MPa, kg/cm², kPa
• Temperature: °F or °C
• Vacuum: micron, mBar, kPa, Pa, Torr
• Working pressure: 0 to 725 psi (50 bar, 5 MPa, 52 kg/cm²)
• Proof pressure: 1000 psi (70 bar) – tolerable without internal damage
• Sensing resolution: 1 psi (.07 bar, .007 MPa, .07 kg/cm²)
• Sensing accuracy: ±1 psi or 1% of reading (whichever is greater)
• Refrigerant temperature range: -40 to 200°F (-40 to 93°C)
• Temperature accuracy: ±1°F (±0.5°C) between 32 and 160°F

Connections

• 1/4" m-flare and 3/8" m-fl (vacuum hose, 4-way only)
• USB-C charging cable included

Supported Refrigerants (100+)

R12, R22, R23, R32, R113, R114, R115, R116, R123, R1234yf, R1234ze, R1270, R124, R134, R134a, R141b, R142b, R143, R143a, R152a, R170, R227ea, R290, R401A, R401B, R404A, R407A, R407B, R407C, R407D, R407F, R409A, R410A, R410B, R411A, R411B, R412A, R413A, R414A, R414B, R417A, R422A, R422B, R422C, R422D, R427A, R434A, R437A, R438A, R443A, R448A, R449A, R452B, R454B, R455A, R456A, R501, R502, R503, R504, R507A, R508B, R509A, R513A, R514A, R600, R600a, R601a, R744 and more.

Specifications

• SKU: 99946-BT-2
• Gauge class: 1.0
• Display: 4.3" colour touchscreen LCD
• Valve configuration: 4-way
• Working pressure: 0–725 psi (50 bar)
• Proof pressure: 1000 psi (70 bar)
• Vacuum sensor range: 20,000 to 1 micron
• Battery: Li-ion rechargeable, 30–36 hours
• Charging: USB-C
• Bluetooth: 4.2 and 5, 260ft (80m) range
• Operating temperature: 32 to 122°F (0 to 45°C)
• Storage temperature: 10 to 120°F (-12 to 49°C)
• Country of origin: USA
• Brand: Mastercool

Repairable — Spare Parts Available

The Spartan manifold is fully repairable. Key spare parts include pressure sensor (99923-002), LCD assembly (99923-005-43B), keypad (99923-008), rubber boot (99923-RB-1), sight glass assembly (99923-SG), USB-C cable (99923-CPORT), vacuum sensor (99923-003B-1), and coloured knobs. Browse Mastercool spare parts.

Ideal Applications

• HVAC system diagnostics, charging, and commissioning
• Superheat and subcool measurement
• Vacuum and leak testing with built-in timer and alarm
• Data logging for service records and compliance
• Wireless monitoring via Mastercool Connect app

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