MR9270S+ HART 4-20mA Multifunction Signal Generator
Handheld process signal generator for current, voltage, millivolt, frequency, thermocouple, RTD, HART and Modbus RTU testing.
£329.99 inc. VAT (£274.99 ex. VAT)
- Supports current, voltage, millivolt, frequency, resistance, thermocouple and RTD signals.
- HART version with USB-to-HART modem function and Modbus RTU support.
- Manual output, preset output, step output, ramp output and signal conversion functions.
- Suitable for 4-20mA loop checks, transmitter simulation, PLC testing and process troubleshooting.
- Includes carry case, manual, certificate, RS485 adapter, USB cable and test leads.
Why Choose SEESII
The MR9270S+ HART is a portable multifunction signal generator designed for industrial process calibration and troubleshooting. It can generate, measure and convert common field signals including mA, voltage, millivolt, frequency, thermocouple, RTD and resistance signals. The HART version also supports USB-to-HART modem functionality, while Modbus RTU support helps with PLC and field-device checks.
Technical Specifications
- Model
- MR9270S+ HART
- Current signal
- 0-24mA
- Voltage signal
- 0-12V
- Millivolt signal
- -10 to 110mV
- Frequency signal
- 0-9999Hz
- RTD
- Pt100, Cu50
- Thermocouple
- multiple common thermocouple types
- Loop power
- 24V loop output
- Communication
- HART, Modbus RTU
- Display
- 320 x 240 TFT LCD
- Size
- approx. 97 x 76 x 33mm
- Weight
- approx. 189g device weight
- Battery
- rechargeable lithium battery
- Typical working time
- approx. 8-10 hours continuous 20mA output
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| SEESII UK (Specialist)BEST | £329.99 | FREE | 12 months + UK Support |
| eBay (est.) | £484.00 | Varies | Seller dependent |
| High Street RRP | £619.52 | N/A | Varies |
Prices checked 8 May 2026. Prices may vary.
Customer Reviews
Useful for checking 4-20mA loops and transmitter outputs. The presets and ramp output make field testing quicker.
Compact size, clear display, and the included leads make it practical for workshop and site use.
The HART and Modbus functions are helpful for transmitter checks, PLC work and process troubleshooting.