52228
DIGITAL DIFFERENTIAL THERMOMETER

The 52228 Digital Differential Thermometer provides instant measurements of TWO points. (T1, T2) and T1 – T2.
• Max Hold Function
• Data Hold Function
• Temperature in ºF or ºC
• AUX Out-Put Jacks
• T1 – T2 Differential
• Type K Thermocouple Input
• Temp. Range: -50 to 1999ºF (-50 to 1300ºC)
• Resolution: 1ºF (1ºC)
• Includes two 3 ft Thermocouple Probes

	INSTRUCTIONS
	FLIER

52229
HANDHELD WATERPROOF DIGITAL THERMOMETER

• Measuring Range -58 to 572ºF / -50 to 300ºC
• Wide Measurement range
• Maximum / minimum temperature memory
• Celsius and Fahrenheit exchange
• Data hold function
• High / Low temperature alarm setting
• Key tone for operation confirmation
• Stainless steel probe
• Foldaway stand

	INSTRUCTIONS
	FLIER

52230
PEN TYPE HYGROMETER

• Rotating cap to protect sensor
• LCD digital display
• Temperature and humidity in ˚F or ˚C
• Max/Min record function
• Data Hold to capture readings
• Auto-off function

SPECIFICATIONS
•	Size: 6.8” x 1.6” x 0.6”
•	Sensor: Electronic Capacitance Polymer Film
•	Temp. Range: -4 to 140˚F (-20 to 60˚C)
•	RH Range: 0 to 100%
•	Accuracy: ±3% from 10 to 95% RH at 77˚F (25˚C) / ±1% from other RH range
•	Resolution: 0.1˚F / 0.1˚C / 0.1%
•	Storage Temp.: 14 to 140˚F (-10 to 60˚C)
•	Storage RH%: <95%
•	Battery: (1) CR2032 (Lithium Coin Cell)
•	Battery Life: 100 hrs.

	INSTRUCTIONS

52232
HUMIDITY TEMPERATURE METER

• Dual LCD display reads temperature & humidity simultaneously
• Wet bulb ready
• Max/Min with time stamp
• Data hold function
• Temperature in °F or °C
• Auto Power OFF
• Temp. range: -4 to 140°F (-20 to 60°C)
• Resolution: 0.1°F / 0.1°C / 0.1 RH
• Accuracy: ±1.5°F / ±0.8°C / ±3% RH

	INSTRUCTIONS
	FLIER

52233
DIGITAL PSYCHROMETER

• Rotating cap to protect sensor
• External Temp. probe (optional)
• LCD digital display
• Data Hold to capture readings
• Pocket size
• Low battery indicator
• Fast response, Accurate reading
• Max/Min record function
• Microprocessor circuitry for reliability• Auto Power Off with disabling capability

SPECIFICATIONS
•	Temp. Range: -4 to 122˚F (-20 to 50˚C)
•	RH% Range: 0 to 100% RH
•	Wet Bulb Range: -6.88 to 122˚F (-21.6 to 50.0˚C)
•	Dew Point Range: -109.7 to 122˚F (-78.7 to 50.0˚C)
•	Ext Temp. Range: -4 to 158˚F (-20 to 70˚C)
•	Accuracy: RH% 3% at 77˚F (25˚C)/Temp: 1˚F (0.6˚C)
•	Response Time: 60 seconds
•	Pocket Size: 0.9” (h) x 1.9” (w) x 7.0” (l)
•	Power: (2) 1.5V AAA battery

52231
PROBE

Probe for 52233

52733
SALT SOLUTION BOTTLE 33% (dark brown bottle)

52775
SALT SOLUTION BOTTLE 75% (blue bottle)

for calibrating 52230 Pen Type Hygrometer and 52233 Digital Psychrometer

	INSTRUCTIONS

52235
DIGITAL AIR VELOCITY TEMPERATURE METER

Sensitive to low/high air velocity. Ergonomic design with 2" (52mm) diameter fan head with extendible cord.

	FLIER

52236
AIRFLOW+ PSYCHROMETER

This battery operated, micro processor based meter reads Humidity, Air Temp., Dew Point, Wet Bulb, Air Velocity, Air Volume & BTU. The sensor is built into the remote fan and is protected by a rotating cap.
Features
• Auto-off with disabling capability • Fast response & accurate reading
• Tripod mountable for extended use • Dew Point & Wet Bulb
• Microprocessor circuitry • Metric & inch unit selection
• 4 AAA batteries • Large backlit LCD display
• Professional remote vane • Handheld size
• Low battery indicator

SPECIFICATIONS
•	TEMPERATURE: -4 to 140˚F (-20 to 60˚C)
•	Accuracy: ±1˚F (±0.6˚C)
•	RELATIVE HUMIDITY: 0 to 100% RH
•	Accuracy: ±3% at 10 to 90% RH (cal. temp.) ±5% at other range
•	DEW POINT: -90 to 158˚F (-68 to 70˚C)
•	WET BULB TEMPERATURE: -7.6 to 158˚F (-22 to 70˚C)
•	AIR VELOCITY: 0.3 to 35 m/s (1 to 114 ft/s)
•	AIR VOLUME: 0 to 99999 m3/s (0 to 99999 cfm)

	FLIER

52237
DATA LOGGER CD & USB CABLE

for 52236 AirFlow + Psychrometer

	INSTRUCTIONS
	FLIER

52238
DIGITAL SOUND LEVEL METER

• Automatic or manual ranging
• 4 measurement ranges from 40 to 130 dB
• 0.1dB resolution
• Select fast or slow response times
• Select A or C weighting
• Maximum hold function
• Record Maximum or Minimum measurements
• Jacks provide AC analog output

	INSTRUCTIONS

52240
PROFESSIONAL HVAC/R CLAMP METER

• Multi-Function: Frequency count, diode check and alarm
• Peak data hold
• Unit and sign display
• Current: (AC) 20 MA - 600A
• Voltage: AC - 200 mv - 750V / DC - 1V - 1000V
• Auto Power OFF
• Frequency: 10Hz - 2KHZ
• Ohms: (Resistance) 200m ohm - 20K ohm

	INSTRUCTIONS

52245
DIGITAL PRESSURE/TEMPERATURE CHART

The Mastercool 52245 is a compact Digital Pressure Temperature Chart. This pocket sized device offers fast and accurate temperature references on a large easy to read LCD display. The automatic power down feature shuts the unit OFF five minutes after the last command to insure extended battery life.
Pressure readings are available in PSI, BAR and MPa. Temperature readings are available in Fahrenheit or Celsius. Battery is included.

• Temperature Range: -40 to 200˚F

Includes 61 refrigerants: R11, R12, R13, R21, R22, R23, R32, R113, R114, R115, R116, R123, R124, R125, R134, R134a, R141b, R142b, R143, R143a, R152a, R218, R290, R176, R401a, R401b, R401c, R402a, R402b, R403a, R403b, R404a, R405a, R406a, R407a, R407b, R407c, R407d, R408a, R409a, R410a, R410b, R411a, R411b, R412a, R413a, R414a, R414b, R501, R502, R503, R504, R507, R508b, R509a, R600, R600a, R601, R601a, R717, R744

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