Best Sellers

Honeywell Circular Chart 30755317-001

Honeywell Circular Chart 30755317-001

Box of 100. Normally Available from Stock. Chart Size (Diameter): 11-7/8-Inch


Compatible Recorders: [LINK]


A box of blank Truline charts is all you need to have a virtually infinite selection of charts at your disposal. Truline draws its own chart as it records, so it can chart up to four variables on the same timeline. And it can print identifying information right on the chart, including (but not limited to) time, date, parameter ranges, engineering units for all measured processes, and any alphanumeric messages you choose.

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Honeywell 30756150-001 Chart Hub Kit

Honeywell 30756150-001 Chart Hub Kit

Normally available from Lesman stock, ready to ship within 24 hours

Replacement chart hub kit for Honeywell 10" and 12" circular chart recorders (DR4200, DR4300, and DR4500 series). Contains three different style hubs, one spring and one allen wrench.

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United Electric 24-013 Differential Pressure Switch

United Electric 24-013 Differential Pressure Switch

Delivery: Normally Available from Lesman Stock
UE 24 Series Delta Pro DP Switch for General Service Use
Adjustable Range: 1 to 9 PSID; Deadband: 0.75 PSI
One SPDT; Screwdriver Adjustment, No Reference Dial
Working Pressure: 150 PSI; Proof Pressure: 150 PSID
1/4-In NPT Brass Process Connection
Model formerly designated with factory stock number 24-013 (96162)

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Replacement Pen Arm 30756304-501

Replacement Pen Arm 30756304-501

Normally available from Lesman stock, ready to ship within 24 hours
Please note:
Honeywell is experiencing longer-than-normal lead times on this product due to a materials shortage.

For Honeywell Truline Recorders.

Identifiable by the black tip at the stylus end of the pen arm.

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United Electric 10-C11 Pressure Switch

United Electric 10-C11 Pressure Switch

Delivery: Normally Available from Lesman Stock
UE Spectra 10 Miniature Cylindrical Pressure Switch
Adjustable Setpoint Range: 10 to 150 PSI
One SPDT Output, 20-In Leads, NEMA 4, Internal Adjustment, Aluminum Enclosure
Deadband: 2 to 10 PSI, Proof Pressure: 3000 PSI, Overrange Pressure: 1500 PSI

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Universal Marking Product 82-39-0202-06 30735489-002

Universal Marking Product 82-39-0202-06 30735489-002

Pack of 6. Normally Available from Stock. Replaces Pen 390-370-2 and Honeywell Pen 30735489-002. Red Marker, Nib Size: 0.370-Inch

Compatible Recorders: ABB Kent-Taylor Pre-75J Series, 1900, Fulscope ER/C, 12-Inch Fulscope, 25, 76, 78, 120, 124, Foxboro 30, 40, Honeywell AR100, DR4200 GP/EV, DR4500 Classic, Servoline 1-4 Pen, 15, 22, 45, 60, 70

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Lesman Instrument Company: Your source for process control instrumentation.
Free UPS Ground shipping on orders over $500.
Good only on orders placed through this website, shipping within the continental US.

Actuator Motors

Honeywell's rotary-action Modutrol IV is the right choice for lower torque, lighter duty applications. It is designed for accurate positioning of dampers and valves in industrial ovens, furnaces, and process heaters.

Burner and Boiler Controls

Burner and boiler control products from Honeywell, Fireye, and Kromschroder


Single loop, dual loop, and limit controllers available here!

Digital Indicators

You'll find the right digital display for just about any application or environment right here. Level indication and alarms, pump and tank control, temperature and pressure displays -- Look to Lesman, Honeywell, and Precision Digital.

Analytical Instruments and Systems

Measure pH and ORP with these Aquametrix by Water Analytics analyzers, transmitters, controllers, and probes.

The Recorder Supply Store

Strip charts, circular charts, pens, and ink cartridges from nearly every process recorder manufacturer. Search by manufacturer part number and buy online!

Recorders and Data Acquisition

Get your charts and pens here for Honeywell stripchart and circular chart recorders. Most popular ranges and calibrations available online. Don't see what you need? Send us a Quick Quote.Looking for Charts and Pens?You've come to the right place!


Get your Honeywell, Siemens, or WIKA pressure transmitters from Lesman. The limited selection you'll find in our online store is only a small portion of the configurations and pressures we can provide for you. Most WIKA stock transmitters are available to ship to you within a week.

Instrument Valves

Get Anderson Greenwood gauge valves, hand valves, and manifold valves from Lesman, your authorized distributor for Anderson Greenwood instrument valves and accessories.

Level Instruments

Point and continuous level monitoring instrumentation from Siemens Milltronics. (Available through Lesman only to customers within our authorized local territory.)


Bimetallic industrial dial thermometers available in 3" or 5" dial sizes, your choice of case connection (back, bottom, or adjustable angle), stem length (from 2.5" to 36"), temperature scale and ranges.

Wireless Interface Products

Wireless interface devices for analog inputs and outputs, digital inputs and outputs. Systems good for long distances (up to 14 miles) and obstructed views (no line-of-sight requirements).

Process Control Accessories

Need an I/P transducer? Looking for a calibrator or HART field communicator? We've got the devices that help keep your process running.

Flow Instruments

Look here for turbine flowmeters for clean liquids, petroleum, chemicals, and harsh liquids, magmeters for industrial liquid applications, and direct reading flowmeters for air and clean liquids.


More than 1,700 pressure, temperature, and differential pressure switches from United Electric available online! From low-cost simple mechanical switches to UE One Series solid state threshold detection switches, you'll find them all here.

Solenoid Valves

Get your ASCO valve here! Nearly 1,000 different configurations available. Use this menu to drill down to the solenoid valve that best fits your application. Remember, in-stock models will ship within a single business day. Place your order by 3pm Central Time, and we'll ship your order for in-stock products the same business day. If you don't see the exact model you need, send us an e-mail, and we'll be glad to get you a quick quote on price and availability.


With more than 5,000 Ametek U.S. Gauge and WIKA pressure gauges available online, you'll find a gauge to fit your application. From vacuum pressures to 30,000 PSI, dry or liquid-filled, we've got the pressure gauge for you. Use this drill-down menu to select the perfect gauge for your application. Most gauges shown are in stock or available to ship to you within a week. Looking for a digital gauge? They're here!

Thermoplastic Tubing

Get your thermoplastic tubing from Lesman. We stock polyethylene, polypropylene, and nylon tubing in a variety of sizes and colors so you can get them quickly. Available in full spools only. To order cut lengths, call your local Lesman sales office.


Parker brass fittings, with crossover information for replacing obsolete Imperial Eastman and Dayco model numbers. Popular configurations and sizes normally available from Lesman stock, ready to ship the same day.

Tube Working Tools

Tube cutters, benders, tube racks, flaring tools, reamers, and blades.


Register for upcoming courses held in our Bensenville IL training center.

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Can't Find It?

Can't find the product you need? Call our sales team at: 800-953-7626. Many products are not yet available from our online store.