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REED R5850 Multifunction Process Calibrator

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$3,354.40
SKU:
R5850
Availability:
57 in Stock
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REED R5850 Multifunction Process Calibrator

$3,354.40

REED R5850 Multifunction Process Calibrator is available at EquipTestPro.com with fast shipping and great prices.

REED R5850 Offers

This multifunction process calibrator is designed to meet the highest industry standards, with its rugged and durable construction ensuring reliable performance in even the most demanding environments. The R5850 features a high-resolution LCD display, automatic step and ramp functions, a built-in 24V loop power supply, the ability to store and recall frequently used calibration setups, and offers an easy-to-use push-button interface.

Features

  • Rugged design stands up to field use
  • Measures/Sources volts, mA, RTDs, thermocouples, frequency, and ohms
  • 0.02% output and measurement accuracy
  • Easy-to-read measure/source screen lets you view input and output simultaneously
  • Perform fast linearity tests with auto step and auto ramp features
  • Powers transmitters during the test using a loop supply with simultaneous mA measurement
  • Measures and outputs 10 types of RTDs and 12 types of TC signals
  • Rechargeable Ni-MH battery
  • Adjustable brightness provides better visibility in poor light
  • Store frequently-used test setups for later use
  • Low battery indicator and auto shut-off


REED R5850 Specifications

Specifications

Measure Function
DC VoltageRange: 50, 500mV, 30V (upper display), 50V (lower display)Resolution: 0.001, 0.01, 1mV, 0.001VAccuracy:50mV: ±(0.02% +10)500mV: ±(0.02% +5)30V (upper display): ±(0.02% +2)50V (lower display): ±(0.02% +2)
DC CurrentRange: 20mA at 0 to 24mAResolution: 0.001mAAccuracy: ±(0.02% +2)
Loop CurrentRange: 20mA (loop) at 0 to 24mAResolution: 0.001mAAccuracy: ±(0.02% +2)
ResistanceRange: 500, 5000ΩResolution: 0.01, 0.1ΩAccuracy: ±(0.05% +10)
FrequencyRange: 100Hz, 1, 10, 100kHzResolution: 0.01, 0.1, 1HzAccuracy: ±(0.01% +1)
Thermocouples
Type RRange: 32 to 3212.6°F (0 to 1767°C)Resolution: 1°F/°CAccuracy:32 to 932°F (0 to 500°C): ±3.24°F (±1.8°C)932 to 3212.6°F (500 to 1767°C): ±2.7°F (±1.5°C)
Type SRange: 32 to 3212.6°F (0 to 1767°C)Resolution: 1°F/°CAccuracy:32 to 932°F (0 to 500°C): ±3.24°F (±1.8°C)932 to 3212.6°F (500 to 1767°C): ±2.7°F (±1.5°C)
Type BRange: 1112 to 3308°F (600 to 1820°C)Resolution: 1°F/°CAccuracy:1112 to 1472°F (600 to 800°C): ±3.96°F (±2.2°C)1472 to 1832°F (800 to 1000°C): ±3.24°F (±1.8°C)1832 to 3308°F (1000 to 1820°C): ±2.52°F (±1.4°C)
Type ERange: -58 to 1832°F (-50 to 1000°C)Resolution: 0.1°F/°CAccuracy:-58 to 32°F (-50 to 0°C): ±1.62°F (±0.9°C)32 to 1832°F (0 to 1000°C): ±2.7°F (±1.5°C)
Type KRange: -148 to 2501.6°F (-100 to 1372°C)Resolution: 0.1°F/°CAccuracy:-148 to 32°F (-100 to 0°C): ±2.16°F (±1.2°C)32 to 2501.6°F (0 to 1372°C): ±1.44°F (±0.8°C)
Type JRange: -76 to 2192°F (-60 to 1200°C)Resolution: 0.1°F/°CAccuracy:-76 to 32°F (-60 to 0°C): ±1.8°F (±1°C)32 to 2192°F (0 to 1200°C): ±1.26°F (±0.7°C)
Type TRange: -148 to 752°F (-100 to 400°C)Resolution: 0.1°F/°CAccuracy:-148 to 32°F (-100 to 0°C): ±1.8°F (±1°C)32 to 752°F (0 to 400°C): ±1.26°F (±0.7°C)
Type NRange: -328 to 2372°F (-200 to 1300°C)Resolution: 0.1°F/°CAccuracy:-328 to 32°F (-200 to 0°C): ±2.7°F (±1.5°C)32 to 2372°F (0 to 1300°C): ±1.62°F (±0.9°C)
Type LRange: -328 to 1652°F (-200 to 900°C)Resolution: 0.1°F/°CAccuracy:-328 to 32°F (-200 to 0°C): ±1.53°F (±0.85°C)32 to 1652°F (0 to 900°C): ±1.26°F (±0.7°C)
Type URange: -328 to 752°F (-200 to 400°C)Resolution: 0.1°F/°CAccuracy:-328 to 32°F (-200 to 0°C): ±1.98°F (±1.1°C)32 to 752°F (0 to 400°C): ±1.35°F (±0.75°C)
Type XKRange: -328 to 1472°F (-200 to 800°C)Resolution: 0.1°F/°CAccuracy:-328 to -148°F (-200 to -100°C): ±0.9°F (±0.5°C)-148 to 1472°F (-100 to 800°C): ±1.08°F (±0.6°C)
Type BPRange: 32 to 4532°F (0 to 2500°C)Resolution: 0.1°F/°CAccuracy:32 to 1472°F (0 to 800°C): ±2.16°F (±1.2°C)1472 to 4532°F (800 to 2500°C): ±4.5°F (±2.5°C)
RTDs
Pt100 (2-wire/3-wire)Range: -328 to 1562°F (-200 to 850°C)Resolution: 0.1°F/°CAccuracy: ±0.72°F (±0.4°C)
Pt100 (4-wire)Range: -328 to 1562°F (-200 to 850°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Pt200 (2-wire/3-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy:-328 to 482°F (-200 to 250°C): ±0.54°F (±0.3°C)482 to 1166°F (250 to 630°C): ±2.88°F (±1.6°C)
Pt200 (4-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy:-328 to 482°F (-200 to 250°C): ±0.36°F (±0.2°C)482 to 1166°F (250 to 630°C): ±1.44°F (±0.8°C)
Pt500 (2-wire/3-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy:-328 to 932°F (-200 to 500°C): ±1.08°F (±0.6°C)932 to 1166°F (500 to 630°C): ±1.62°F (±0.9°C)
Pt500 (4-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy:-328 to 932°F (-200 to 500°C): ±0.54°F (±0.3°C)932 to 1166°F (500 to 630°C): ±0.72°F (±0.4°C)
Pt1000 (2-wire/3-wire)Range: -328 to 1202°F (-200 to 650°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Pt1000 (4-wire)Range: -328 to 1202°F (-200 to 650°C)Resolution: 0.1°F/°CAccuracy: ±0.27°F (±0.15°C)
Cu10Range: -148 to 500°F (-100 to 260°C)Resolution: 0.1°F/°CAccuracy: ±3.24°F (±1.8°C)
Cu50 (2-wire/3-wire)Range: -58 to 302°F (-50 to 150°C)Resolution: 0.1°F/°CAccuracy: ±1.44°F (±0.8°C)
Cu50 (4-wire)Range: -58 to 302°F (-50 to 150°C)Resolution: 0.1°F/°CAccuracy: ±0.9°F (±0.5°C)
Cu100 (2-wire/3-wire)Range: -58 to 302°F (-50 to 150°C)Resolution: 0.1°F/°CAccuracy: ±0.72°F (±0.4°C)
Cu100 (4-wire)Range: -58 to 302°F (-50 to 150°C)Resolution: 0.1°F/°CAccuracy: ±0.45°F (±0.25°C)
Pt100-392 (2-wire/3-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.9°F (±0.5°C)
Pt100-392 (4-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Pt100-JIS (2-wire/3-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.9°F (±0.5°C)
Pt100-JIS (4-wire)Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Ni120 (2-wire/3-wire)Range: -112 to 500°F (-80 to 260°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Ni120 (4-wire)Range: -112 to 500°F (-80 to 260°C)Resolution: 0.1°F/°CAccuracy: ±0.36°F (±0.2°C)
Source Function
DC VoltageRange: 100mV, 1, 10VResolution: 0.001, 0.01mV, 0.0001VAccuracy: ±(0.02% +10)
DC CurrentRange:20mA at 0 to 24mA20mA (SIM) at 0 to 24mAResolution: 0.001mAAccuracy: ±(0.02% +2)
ResistanceRange: 400, 4000Ω, 40kΩResolution: 0.01, 0.1, 1ΩAccuracy:±(0.02% +8)±(0.05% +10)±(0.1% +40)
FrequencyRange: 200, 2000Hz, 20, 100kHzResolution: 0.01, 0.1, 1, 10HzAccuracy: ±(0.01% +1) (±3 dgt.), 100kHz: ±5 dgt.
PulseRange: 100Hz, 1, 10kHzResolution: 1 cycAccuracy: ±2 dgt.
Switch QuantityRange: 100Hz, 1, 10, 100kHzResolution: 0.01, 0.1, 1, 10HzAccuracy: ±2 dgt.
Thermocouples
Type RRange: 32 to 3212.6°F (0 to 1767°C)Resolution: 1°F/°CAccuracy:32 to 212°F (0 to 100°C): ±2.7°F (±1.5°C)212 to 3212.6°F (100 to 1767°C): ±2.16°F (±1.2°C)
Type SRange: 32 to 3212.6°F (0 to 1767°C)Resolution: 1°F/°CAccuracy:32 to 212°F (0 to 100°C): ±2.7°F (±1.5°C)212 to 3212.6°F (100 to 1767°C): ±2.16°F (±1.2°C)
Type BRange: 1112 to 3308°F (600 to 1820°C)Resolution: 1°F/°CAccuracy:1112 to 1472°F (600 to 800°C): ±2.7°F (±1.5°C)1472 to 3308°F (800 to 1820°C): ±1.98°F (±1.1°C)
Type ERange: -328 to 1832°F (-200 to 1000°C)Resolution: 0.1°F/°CAccuracy:-328 to -148°F (-200 to -100°C): ±1.08°F (±0.6°C)-148 to 1112°F (-100 to 600°C): ±0.9°F (±0.5°C)1112 to 1832°F (600 to 1000°C): ±0.72°F (±0.4°C)
Type KRange: -328 to 2501.6°F (-200 to 1372°C)Resolution: 0.1°F/°CAccuracy:-328 to -148°F (-200 to -100°C): ±1.08°F (±0.6°C)-148 to 752°F (-100 to 400°C): ±0.9°F (±0.5°C)752 to 2192°F (400 to 1200°C): ±1.26°F (±0.7°C)2192 to 2501.6°F (1200 to 1372°C): ±1.62°F (±0.9°C)
Type JRange: -328 to 2192°F (-200 to 1200°C)Resolution: 0.1°F/°CAccuracy:-200 to -148°F (-200 to -100°C): ±1.08°F (±0.6°C)-148 to 1472°F (-100 to 800°C): ±0.9°F (±0.5°C)1472 to 2192°F (800 to 1200°C): ±1.26°F (±0.7°C)
Type TRange: -418 to 752°F (-250 to 400°C)Resolution: 0.1°F/°CAccuracy: ±1.08°F (±0.6°C)
Type NRange: -328 to 2372°F (-200 to 1300°C)Resolution: 0.1°F/°CAccuracy:-328 to -148°F (-200 to -100°C): ±1.8°F (±1°C)-148 to 1652°F (-100 to 900°C): ±1.26°F (±0.7°C)1652 to 2372°F (900 to 1300°C): ±1.44°F (±0.8°C)
Type LRange: -328 to 1652°F (-200 to 900°C)Resolution: 0.1°F/°CAccuracy:-328 to 32°F (-200 to 0°C): ±1.53°F (±0.85°C)32 to 1652°F (0 to 900°C): ±1.26°F (±0.7°C)
Type URange: -328 to 752°F (-200 to 400°C)Resolution: 0.1°F/°CAccuracy:-328 to 32°F (-200 to 0°C): ±1.98°F (±1.1°C)32 to 752°F (0 to 400°C): ±1.35°F (±0.75°C)
Type XKRange: -328 to 1472°F (-200 to 800°C)Resolution: 0.1°F/°CAccuracy:-328 to -148°F (-200 to -100°C): ±0.9°F (±0.5°C)-148 to 1472°F (-100 to 800°C): ±1.08°F (±0.6°C)
Type BPRange: 32 to 4532°F (0 to 2500°C)Resolution: 0.1°F/°CAccuracy:32 to 1472°F (0 to 800°C): ±2.16°F (±1.2°C)1472 to 4532°F (800 to 2500°C): ±4.5°F (±2.5°C)
RTDs
Pt100-385Range: -328 to 1472°F (-200 to 800°C)Resolution: 0.1°F/°CAccuracy: ±0.6°F (±0.33°C)
Pt100-392Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Pt200-385Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy:-328 to 482°F (-200 to 250°C): ±0.36°F (±0.2°C)482 to 1166°F (250 to 630°C): ±1.44°F (±0.8°C)
Pt100-JISRange: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.54°F (±0.3°C)
Pt500-385Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy:-328 to 932°F (-200 to 500°C): ±0.54°F (±0.3°C)932 to 1166°F (500 to 630°C): ±0.72°F (±0.4°C)
Pt1000-385Range: -328 to 1166°F (-200 to 630°C)Resolution: 0.1°F/°CAccuracy: ±0.36°F (±0.2°C)
Cu10Range: -148 to 500°F (-100 to 260°C)Resolution: 0.1°F/°CAccuracy: ±3.24°F (±1.8°C)
Cu50Range: -58 to 302°F (-50 to 150°C)Resolution: 0.1°F/°CAccuracy: ±0.9°F (±0.5°C)
Cu100Range: -58 to 302°F (-50 to 150°C)Resolution: 0.1°F/°CAccuracy: ±0.45°F (±0.25°C)
Ni120Range: -112 to 500°F (-80 to 260°C)Resolution: 0.1°F/°CAccuracy: ±0.36°F (±0.2°C)
Function Specifications
Ramp FunctionsSource functions: Voltage, Current, Resistance, Frequency, TemperatureRamps: Slow ramp, fast ramp, 25% step-ramp
Loop Power FunctionVoltage: 24VAccuracy: 10%Maximum current: 22mA, short circuit protected
Step FunctionsSource functions: Voltage, Current, Resistance, Frequency, TemperatureSteps: 25% of range, 100% of range
General Specifications
Display20,000 count TFT color LCD display
Kick StandYes
Power Supply1.2V x 6 AA rechargeable batteries
Auto Shut-offYes
Low Battery IndicatorYes
Replaceable Test LeadsYes
Product CertificationsCE, RoHS
Operating Temperature14 to 131°F (-10 to 55°C)
Operating Humidity Range≤95%
Storage Temperature-4 to 158°F (-20 to 70°C)
Max. Operating Altitude6561' (2000m)
Dimensions7.7 x 3.7 x 2.3" (195 x 95 x 58mm)
Weight22.92oz (650g)


What's included with the REED R5850
  • Multifunction Process Calibrator
  • Test Leads
  • Test Clips
  • Type K Thermocouple Wire Probe
  • USB Cable
  • Power Adapter
  • Carrying Case


REED R5850 Multifunction Process Calibrator. Get Free Shipping when you order today on EquipTestPro.com. In stock, ships same or next day.

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Shipping & Return Policy — EquipTestPro
Last Updated: February 1, 2026
Legal Policies

Shipping & Return Policy

Everything you need to know about orders, cancellations, refunds, and delivery.

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Section 01
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EquipTestPro ships to both Canada and the United States. We are pleased to serve customers across North America with reliable, trackable delivery options.

Please Note: Certain products are subject to restrictions and cannot be shipped to all destinations. Product-specific shipping availability is noted on each item's detail page. We do not currently ship to international destinations outside of Canada and the United States.
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Section 02
Shipping Rates

When you place an order, a flat-rate shipping charge will be applied at checkout based on your order. The applicable rate will be clearly displayed before you complete your purchase.

Flat-rate shipping is calculated to reflect the cost of reliable, insured delivery. The rate shown at checkout is final — no hidden surcharges will be added after your order is placed.

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Section 03
Weight-Based Shipping

For certain items, shipping costs are calculated based on the weight of the product. The weight of any weight-based item is listed on its product detail page.

Rounding Policy: To align with the policies of our shipping carriers, all item weights are rounded up to the next full pound when calculating shipping costs.

For example, an item weighing 3.2 lbs will be rated at 4 lbs for shipping calculation purposes. This policy is standard practice across all major carriers we work with.

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Section 04
Product Restrictions

Some products sold on EquipTestPro are subject to shipping restrictions due to regulatory, carrier, or safety requirements. These include but may not be limited to:

  • Hazardous or regulated materials
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Where restrictions apply, this will be clearly noted on the product listing. If you have questions about a specific product's shipping eligibility to your location, please contact us before placing your order.

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Section 05
Order Processing

Orders are processed on business days (Monday through Friday, excluding statutory holidays). Orders placed after business hours or on weekends will begin processing the following business day.

1
Order Confirmed You receive an email confirmation with your order details.
2
Order Processed Your order is verified and prepared for shipment (1–2 business days).
3
Shipped You receive a tracking number by email once your package is dispatched.
4
Delivered Delivery timelines vary by destination and carrier availability.
Section 01
Order Cancellation Rights

You are entitled to cancel your Order within 30 days of receipt without providing a reason, subject to the processing fee structure described below.

The cancellation deadline is 30 days from the date on which you received the Goods, or on which a third party appointed by you (other than the carrier) takes possession of the delivered product.

To exercise your cancellation right, notify us with a clear written statement by:

  • Email: info@equiptestpro.com
  • Online form: equiptestpro.com/contact-us
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Section 02
Cancellation Processing Fees

The following fee structure applies to all cancellations. Please review carefully before requesting a cancellation.

Customer-Initiated
10%

A processing fee of 10% of the total order value will be withheld from your refund to cover payment processing, handling, and administrative costs.

Company-Initiated (Item Unavailable)
$0

If we cancel your order due to item unavailability, no processing fee will be withheld. You receive a full refund of the amount paid.

Refunds will be issued using the same payment method as the original purchase. No additional fees beyond those described above will be applied.

Section 03
Conditions for Returns

To be eligible for a return, all of the following conditions must be met:

  • The Goods were purchased within the last 30 days
  • The Goods are in their original, undamaged packaging
  • The Goods are unused and unaltered from the condition received
  • A valid receipt or proof of purchase accompanies the return
Sale Items: Only regular-priced Goods are eligible for a refund. Items purchased on sale or at a discounted price cannot be refunded. This exclusion may not apply where prohibited by applicable law.

We reserve the right to refuse returns of any merchandise that does not meet the above conditions, at our sole discretion.

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Section 04
Non-Returnable Goods

The following items are not eligible for return under any circumstances:

  • Goods made to your specifications or clearly personalized
  • Goods that by their nature are not suitable for return, deteriorate rapidly, or where the expiry date has passed
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  • Goods purchased on sale or at a promotional discount
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Section 05
How to Return Goods

You are responsible for the cost and risk of returning Goods to us. Before sending any items, please contact us at info@equiptestpro.com to obtain the return shipping address.

Important: We strongly recommend using an insured and trackable mail service. We cannot be held responsible for Goods damaged or lost during return shipment, and we are unable to issue a refund without confirmed receipt of the returned Goods or verifiable proof of delivery.
Section 06
Refund Timeline

You should expect to receive your refund within four (4) weeks of delivering your return package to the shipper. In many cases, refunds are processed sooner. The timeline breaks down as follows:

1
Transit to Us 5 to 10 business days for us to receive your return from the shipper.
2
Return Processing 3 to 5 business days to inspect and process your return once received.
3
Bank Processing 5 to 10 business days for your bank to post the refund to your account.

We will process refunds no later than 14 days from the day we receive the returned Goods, using the same payment method as your original purchase.

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Section 07
Gift Returns

If the Goods were marked as a gift at the time of purchase and shipped directly to you, a gift credit equal to the return value (less any applicable processing fee) will be issued. Once the returned product is received and inspected, a gift certificate will be mailed to you.

If the Goods were not marked as a gift at purchase, or if the gift giver had the order shipped to themselves first, the refund will be issued to the original purchaser.

Questions? We're here to help.

Reach out to our support team for assistance with any order or return.

Not Applicable

Condition: NA

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    All returns must be authorized. Items returned prior to authorization will not be accepted. For international customers where applicable, customers must ship any returns to us freight and duty prepaid. Return freight charges for internationsl shippments will be the responsibility of the customer.

    Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.

    Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.

    (Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)

    Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.

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