--- title: Eliminate Old Hot-Wire Pressure Monitors - Setra FLEX™ Conversion Kit - Room Pressure Monitor | Setra Systems --- ** ** ** - Website Pages - Products [![Setra Systems Logo](https://www.setra.com/hubfs/setra-logo.svg "Setra Systems Logo")](https://www.setra.com/) ![drop-down-pressure](https://www.setra.com/hs-fs/hubfs/drop-down-pressure.png?width=30&height=30&name=drop-down-pressure.png) ### [Pressure Sensors](https://www.setra.com/product/pressure) [Differential Pressure Sensors](https://www.setra.com/product/pressure/differential) [Absolute Pressure Sensors](https://www.setra.com/product/pressure/absolute) [Barometric Pressure Sensors](https://www.setra.com/product/pressure/barometric) [Compound Pressure Sensors](https://www.setra.com/product/pressure/compound) [Gauge Pressure Sensors](https://www.setra.com/product/pressure/gauge) [Submersible Pressure Sensors](https://www.setra.com/product/pressure/submersible) [Vacuum Pressure 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[![moble-icon](https://www.setra.com/hs-fs/hubfs/moble-icon.jpg?width=30&height=19&name=moble-icon.jpg) ](https://www.setra.com/2015-sitemap?hsLang=en) [Products](https://www.setra.com/products#all) > [Pressure](https://www.setra.com/products#pressure) > [Room Pressure Monitoring](https://www.setra.com/products#pressure.room-pressure-monitoring) Hot-Wire to Setra FLEX™ Conversion Kit - ![Room Pressure Monitor Hot-Wire Replacement Kit](https://www.setra.com/hubfs/retrofit_hot-wire_kit.jpg "Room Pressure Monitor Hot-Wire Replacement Kit") - ![Replace Old ](https://www.setra.com/hubfs/diagram-of-pressure-monitor-retrofit-kit.png "Replace Old ") ![Setra FLEX Hot-Wire Replacement Kit Logo](https://www.setra.com/hs-fs/hubfs/setra_flex_hot-wire_replacement_kit.png?width=198&name=setra_flex_hot-wire_replacement_kit.png) **No Construction - Installs in Minutes - Replaces "8630" Units** **GET RID OF OLD HOT-WIRE THROUGH-THE-WALL (TTW) TECHNOLOGY!** The **Setra FLEX™ Hot-wire Conversion Kit** is designed to replace common Through-the-Wall (TTW) anemometer-based room pressure monitors with reliable capacitive sensing technology from Setra FLEX™. The kit includes everything required for upgrading obsolete, high maintenance room pressure monitor technology. **This kit can completely replace outdated, discontinued "8630" room pressure monitors with new, better technology.** ![Hot-Wire Replacement Kit Badges](https://www.setra.com/hs-fs/hubfs/setra_flex_hot-wire_replacement_badges.png?width=410&name=setra_flex_hot-wire_replacement_badges.png) [Download Data Sheet](https://www.setra.com/hubfs/FLEXHot-wireReplacementDSandOnePagerV1.pdf)[Quickstart Guide](https://www.setra.com/hubfs/FLEXHot-wireReplacementQS.pdf) [**Request Quote**](https://www.setra.com/request-a-quote?product_availability_interest=Setra+FLEX+Hot-Wire+Replacement+Kit&description=Ple%3Ca%20href=) Button Example [Buy Now ](https://www.shop.setra.com/collections/room-pressure-monitors/products/setra-flex-hot-wire-to-setra-flex%E2%84%A2-conversion-kit) No construction required for install The complete kit can be installed in minutes and requires no wiring or wall modifications; all you need is just a ladder and screw driver. First, remove the existing sensor covers and replace them with Setra’s sensor. Next, connect using existing wires. Then, remove the legacy monitor and replace with [Setra FLEX](https://www.setra.com/setra-flex). Connect using existing wires and power, configure FLEX and you’re done! Low-maintenance & contaminant-free sensing technology Through-the-Wall (TTW) anemometer-based pressure monitors are prone to attract dirt and contaminants which can easily clog the sensing equipment, causing false alarms and unreliable readings. Setra’s capacitive pressure transducers are dead-ended sensors, which means there is no air flowing through pressure tubing. Our proprietary variable capacitance transducer requires no maintenance or cleaning. Re-zero can be done on the Setra FLEX touch screen and sensor calibration can be performed if the application requires it. The Setra FLEX unit includes a brilliant 7” touch screen display, configurable visual and audible alarming, isolation and non-isolation modes, alarm delay, key switch input, and control operation for VAV dampers. Multiple units can be easily configured using Setra’s USB cloning feature. More information about Setra FLEX™ Environmental Monitor can be found at [www.setra.com/setra-flex](https://www.setra.com/setra-flex). ![Dirty probe sensor in a room pressure monitor](https://www.setra.com/hs-fs/hubfs/hot-wire-anemometer-sensor-dirty-sensing-element.png?width=1630&name=hot-wire-anemometer-sensor-dirty-sensing-element.png "Room Pressure Monitor Dirty Anemometer Sensing Probe") Docs & Downloads [Hot-Wire Replacement Kit Data Sheet](https://www.setra.com/hubfs/FLEXHot-wireReplacementDSandOnePagerV1.pdf) [Quickstart Guide](https://www.setra.com/hubfs/FLEXHot-wireReplacementQS.pdf) Features - **Complete room pressure monitor kit to replace existing installations of hot-wire anemometer sensors** - **Attaches to existing sensor housing and wall box** - **No construction necessary; installs in minutes** - Includes AHR Innovation Award-winning Setra FLEX™ - Includes the no-maintenance Setra sensor - Specifications match or exceed existing legacy monitors - Required tools: a ladder & screw driver - No cutting into walls and no pulling wires - Replace obsolete "8630" units in minutes Included in the kit - Setra **FLEX-RM** or **FLEX-RC** with 7” display - A **sensor housing kit** that attaches to the existing through-the-wall sensor assembly and includes Setra’s proprietary dead-ended variable capacitance pressure sensing element - A **surface-mount adapter housing** for Setra FLEX that can fit over existing wall boxes Related Products --- ![Setra FLEX Room Pressure Monitor](https://www.setra.com/hs-fs/hubfs/setra-flex-room-pressure-monitor-1.png?width=285&name=setra-flex-room-pressure-monitor-1.png "Setra FLEX Advanced Room Pressure and Environmental Monitor") **Setra FLEX™ Room Pressure Monitor ** Setra FLEX™ provides a flexible room environmental control and monitoring solution in a simple-to-use package. The unit supports 3 rooms, monitoring up to 6 parameters per room. [**View Product**](https://www.setra.com/setra-flex) ![Setra's Model SRPM Room Pressure Monitor](https://www.setra.com/hs-fs/hubfs/SRPM-Product-Image-Setra-Room-Pressure-Monitor.jpg?width=285&name=SRPM-Product-Image-Setra-Room-Pressure-Monitor.jpg "Model SRPM Room Pressure Monitor") **Model SRPM Room Pressure Monitor ** The SRPM is Setra’s standard single room BACnet capable room pressure monitor for measuring low differential pressure in critical applications. [**View Product**](https://www.setra.com/product/room-pressure-monitoring/model-srpm) ![Model_SRH200-thumb-1](https://www.setra.com/hs-fs/hubfs/Model_SRH200-thumb-1.jpg?width=232&name=Model_SRH200-thumb-1.jpg)   **SRH200 Humidity & Temperature Transmitter ** Specially designed for HVAC, the SRH200 sensor by Setra is a cost effective, highly accurate and reliable solution for measuring relative air humidity and temperature. 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